Gira DALI Gateway Скачать руководство пользователя страница 121 | Manualshive

Страница: 121 / 136

Gira DALI Gateway Скачать руководство пользователя страница 121

"DALI Gateway C00CX2 EN / C00CX4 EN" software

Parameters

Best. Nr. 1060 00

Page 121 of 136

Response at the
beginning of the disable
function

Switch-off

Blinking

Brightness value

No change

Memory value (brightness
prior to the last shutoff)

The behaviour of the DALI group at the
beginning of the disable function can be
parameterized.

At the beginning of the disable the group
will be switched off and locked.

During the disable the DALI devices will
blink on and off while the bus mode of the
group is locked. Generally, the blinking
time for all groups is parameterized on the
"General" parameter card. During blinking,
the logic switching state is "ON - 1". The
brightness reported back is the switch-on
brightness. A Soft-ON/OFF function will be
ignored during the blinking.

At the beginning of the disable, the group
will be adjusted to the brightness value
specified in the drop-down menu next to
the parameter. The adjustable value is
restricted by the parameterized minimum
and maximum brightness.

At the beginning of the disable, the DALI
devices of a group will not react and keep
the current brightness value or remain
switched off. The bus mode of the group
will be locked.

At the beginning of the disable, the
brightness value will be set to the value
that was active and internally stored prior to
the switch-off (via the “Switching” object).
This memory value is permanently stored
so that the value is pre-defined to the
maximum brightness after the return of bus
or mains voltage or after programming with
the ETS. The bus mode of the group will be
locked afterwards.

An output disabled via the bus can still

be manually controlled at the Gateway!

This parameter becomes visible only if

the disable function is enabled.

«
...
119
120
121
122
123
...
»

Содержание DALI Gateway

Страница 1: ...KNX EIB Product Documentation Order no 1060 00 Page 1 of 136 DALI Gateway Date of issue 24 04 2009...

Страница 2: ...l data 18 4 Software description 20 4 1 Software specifications 20 4 2 DALI Gateway C00Cx2 software 21 4 2 1 Scope of functions 21 4 2 2 Software information 22 4 2 3 Object table 24 4 2 4 Functional...

Страница 3: ...us can be reported to the KNX EIB error status short circuit status of supply voltage The controls 4 pushbuttons on the front panel of the device permit to manually dim or switch the DALI light groups...

Страница 4: ...lling the DALI interface or programming with the ETS The device is designed for fitting on mounting rails in closed compact boxes or in power distributions in fixed installations in dry rooms 2 Fittin...

Страница 5: ...ming operation or after mains voltage return The display duration depends on the number of connected DALI devices only briefly after mains voltage return Display in an unprogrammed state during manual...

Страница 6: ...parts Electric shocks can be fatal Before working on the device cut out the mains supply and cover up live parts in the surroundings Fitting Fit the device by snapping it onto the mounting rail in acc...

Страница 7: ...functional extra low voltage FELV Thus the DALI interface has to be treated like a live line in compliance with the applicable installation prescriptions The DALI Gateway supplies the system voltage T...

Страница 8: ...exist L1 L3 L2 N da da L N da da ALL OFF ON OFF da da L N D A L I red black EIB Figure 2 Removing other control facilities in the DALI system Other control posts may also be for instance DALI centers...

Страница 9: ...terminals a protective cap can be installed The cap is installed with the bus terminal in place and the connected bus line led out at the rear To install the cap Slide the cap over the bus connecting...

Страница 10: ...Program and project the physical address with the ETS The DALI Gateway is configured via a plug in which is integrated into the ETS database Start the plug in open the parameter view and configure th...

Страница 11: ...ia parameter settings in the ETS In manual control mode the groups cannot be controlled via the bus Manual control is possible only while the actuator is supplied with power from the mains The manual...

Страница 12: ...All groups off only in permanent manual control mode 8 7 segment display Indicates the selected DALI group for the manual control 01 32 blinking group disabled In addition the following information ca...

Страница 13: ...ETS Press the key briefly 1 s is shown on the 7 segment display After 5 s without key press the Gateway will deactivate the manual control for the broadcast The Gateway is delivered with the broadcast...

Страница 14: ...orresponding commands Switching off all DALI devices in manual control mode for broadcast Permanent manual control mode for broadcast has been activated Press the ALL OFF key All connected DALI device...

Страница 15: ...ctivating the permanent manual control mode The DALI Gateway has been programmed at least once via the ETS Manual control has been enabled in the ETS Bus mode or temporary manual control mode has been...

Страница 16: ...s the ALL OFF key All groups are shut off immediately brightness 0 The groups are not locked Subsequently they can again be individually controlled The ALL OFF function is not available in temporary m...

Страница 17: ...cates Learn during the device replacement If the replacement has been successful the display will extinguish All other functions of the DALI Gateway are paused during the device replacement The Gatewa...

Страница 18: ...nsumption max 6 W Connection with screw terminals 0 5 4 mm solid and stranded wire without ferrule 0 5 2 5mm stranded wire with ferrule Max tightening torque 0 8 Nm Total power loss max 3 W Response t...

Страница 19: ...2 mA with short circuit and overload protection Transmission rate 1200 bit s Protocol acc to DIN EN 60929 appendix E4 Cable lengths between Gateway and device 1 5 mm max 300 m 1 0 mm max 238 m 0 75 m...

Страница 20: ...failure or return or after programming with the ETS DALI Gateway C00C02 EN DALI Gateway C00C12 EN 0 2 english for ETS 3 0 Versions a c 1 2 english for ETS3 0 from version d onwards 705 2 This applica...

Страница 21: ...e after changes or cyclical transmission to the bus or passive object read out function feedback function Adjusting the limit values for brightness is possible Dimming response can be parameterized So...

Страница 22: ...e to several groups during the DALI commissioning In order to simplify the device assignment the ETS application program of version 0 4 or 1 4 provides in the plug in the option to prevent an assignme...

Страница 23: ...to be possible Activating safe state mode Disconnect the mains voltage supply Press the programming key and keep it pressed Switch on the mains voltage supply Release the programming key only after th...

Страница 24: ...of DALI devices that are connected individually to the system to the bus The following bit assignment is used Bit 0 5 number of the DALI device 0 63 Bit 6 lamp error 0 no error 1 error Bit 7 electron...

Страница 25: ...n 1 bit 1 001 C W R 1 Description 1 bit object for the central switching of assigned DALI groups The polarity can be parameterized Function Manual control Object Function Name Type DP type Flag 214 Di...

Страница 26: ...C W R 1 Description 1 byte object for setting an absolute dimming value brightness value 0 255 by the bus Function Absolute dimming feedback Object Function Name Type DP type Flag 3 10 17 108 115 121...

Страница 27: ...ion Name Type DP type Flag 6 13 20 111 117 123 207 Disable Group 1 32 1 bit 1 003 C W R 1 Description 1 bit object for disabling a group polarity is parameterizable Function Forced control position fu...

Страница 28: ...on the following page It is the group assignment that makes it possible to control the DALI devices individually individual assignment only one device in the group or collectively multiple assignment...

Страница 29: ...xample 1 cf Figure 5 Group 2 is set to 10 brightness Group 3 is then dimmed to a brightness value of 20 The lamps of group 3 will accept the brightness value of 20 which was invoked last The feedback...

Страница 30: ...ntrol commands received by the KNX EIB to the DALI line as well as to control the devices Further DALI control components in multi master mode e g an additional DALI center a DALI potentiometer or pow...

Страница 31: ...ack to the KNX EIB The transmission of status information of the DALI devices lamp error electronic ballast error or the Gateway mains voltage failure DALI short circuit to the bus is possible In addi...

Страница 32: ...ed and opened with mouse clicks or via keyboard navigation The parameters assigned to the parameter page or the options for the commissioning will become visible in the right subwindow There are 4 but...

Страница 33: ...s shown in square brackets in front of the group name The group number will be shown in the 7 segment display on the front panel when manual control has been activated Created groups can be deleted at...

Страница 34: ...ort This may take some time The time required depends on the number of existing DALI devices and the number of the created groups and enabled functions The data is exported in an XML format In order t...

Страница 35: ...y linked with communication objects In this case all group addresses in the device in question must be deleted in the ETS project before the XML import Only after that can the XML import with group ad...

Страница 36: ...a configuration report The print function can be found on the Import Export Printing parameter page of the plug in After activating the Print button the plug in will ask whether you want to print the...

Страница 37: ...he number e g 1 electronic ballast row 1 right it will be easy to identify which device at what location actually is reporting the error The device numbers will be automatically assigned during the co...

Страница 38: ...eedback telegram will be directly transmitted to the KNX EIB when an eliminated error has been acknowledged provided that at least one more DALI error was detected by the Gateway This ensures that fur...

Страница 39: ...us has been requested cf Table 1 The bits 6 and 7 have to be set to 1 Otherwise the trigger telegram will be ignored The DALI Gateway will immediately respond to a received and valid trigger telegram...

Страница 40: ...edback parameter on the General parameter page to Yes only in case of a voltage failure As soon as a mains voltage failure has been detected at the DALI Gateway the Gateway will immediately transmit a...

Страница 41: ...on is deactivated The communication object is hidden The connected DALI devices will also respond to a short circuit in the DALI line The devices will adjust to the preset SystemFailureLevel This valu...

Страница 42: ...ocally at the DALI Gateway Set the Enable DALI device replacement manually parameter on the General parameter page to Yes This permits to start and carry out an automatic DALI device replacement local...

Страница 43: ...manual control mode can be enabled or disabled separately for different states of operation Manual control can for instance be disabled during bus mode bus voltage applied Another option is the comple...

Страница 44: ...e active forced control positions or disable functions These functions are reactivated after the manual control mode has been deactivated unless they have been cancelled in the meantime Behaviour at t...

Страница 45: ...object with the disable function enabled the Gateway will if applicable terminate an activated manual control mode immediately and lock the function keys on the device panel The telegram polarity of t...

Страница 46: ...ll also transmit a Manual control inactive status telegram to the bus Setting a bus mode disable Individual DALI groups can be disabled locally The affected groups can then no longer be controlled via...

Страница 47: ...individual groups Only the feedback telegrams will be delayed The groups can also be activated during the delay after bus voltage return A setting of 0 for the delay time after bus voltage return will...

Страница 48: ...ing the central function Enable the central function on the General parameter page by setting the Central function parameter to Yes When the function is activated the Switching central function commun...

Страница 49: ...nder run during any of the activated operating states of the Gateway cf figure 13 This permits to individually adjust the brightness of the addressed lamps of the DALI devices also to the perception o...

Страница 50: ...t fall short of the parameterized minimum brightness the Gateway will set the minimum brightness as the new brightness value for the affected group Setting the maximum brightness The maximum brightnes...

Страница 51: ...witching on the brightness value equals the one that was active and internally stored prior to the shutoff via the Switching or Switching central function This value is permanently stored so that the...

Страница 52: ...mple download of the physical address alone or partial programming of only the group addresses will cause this parameter to be disregarded and the Response to bus voltage return parameter to be execut...

Страница 53: ...be stored in case of bus or mains voltage failure so they can be resumed if needed after the return of bus and mains voltage depends on the parameterization of the forced control position functions A...

Страница 54: ...ll always be inactive after a bus or mains voltage failure Any switching state set after a bus mains voltage return will be tracked in the feedback objects When the mains voltage returns at the connec...

Страница 55: ...ramming Object Brightness value feedback Blinking Group optional parameterization Object Central function Polarity of central object Object staircase timer function start stop Object Extension unit Sc...

Страница 56: ...ing setting is selected the group is switched on and off cyclically after the disable Generally the Blinking rate is parameterized for all groups in the General parameter node x group number 1 32 Duri...

Страница 57: ...ject can be initialized upon the return of bus or mains voltage Bit 1 Bit 0 Function 0 X forced control position not active Regular control 0 x Forced control position not active Regular control 1 0 F...

Страница 58: ...e end of the forced control position the parameterized behaviour will be executed and the bus control of the group re enabled When the No change setting is selected the devices will show no reaction a...

Страница 59: ...uated for the affected group When set to Status as prior to bus voltage failure the status of the forced control position that was last set and stored internally prior to bus or mains voltage failure...

Страница 60: ...dimming without changes to the switching status e g from 10 to 50 brightness during updates of the switching status from OFF to OFF if the DALI group has already been shut off always at the beginning...

Страница 61: ...forced control position is active Object Switching feedback Fig 16 Functional feedback diagram Disable function as an additional function A blinking DALI group will always be reported back as Switche...

Страница 62: ...Switching status feedback object will be enabled The switching status will be transmitted only if the feedback object is read by the bus After bus voltage return or after programming with the ETS ther...

Страница 63: ...feedback can be used as an active message object or as a passive status object In case of an active message object the brightness value feedback telegram will also be directly transmitted to the bus a...

Страница 64: ...for feedback telegram after bus voltage return parameter in the Groups x groupname dimming parameter node to No The brightness feedback transmission will be transmitted immediately after bus mains vo...

Страница 65: ...n increase decrease and the relative dimming increments Dimming can also be stopped Relative dimming executed manually and locally at the DALI Gateway takes place for as long as the corresponding key...

Страница 66: ...over the entire brightness range from 0 to 100 The dimming increments are directly derived from the parameterized times Examples Parameterized time for relative dimming 10 s adjusted brightness value...

Страница 67: ...group in the plug in of the DALI Gateway via the Brightness value object Set the Dimming response to a brightness value parameter in the Groups x group name dimming to Dim A new brightness value rece...

Страница 68: ...ghting to a minimum brightness via relative dimming but also to shut it off Another application for example is the time controlled Good night shutoff for the dimmed lighting of a children s room time...

Страница 69: ...voltage return ETS programming Object Brightness value feedback Blinking Group optional parameterization Object Central function Polarity of central object Object staircase timer function start stop O...

Страница 70: ...il the shutoff The selectable parameter must be within the limits of the maximum and minimum brightness Setting the delay of the shutoff function A time delay can be activated before the shutoff funct...

Страница 71: ...ect Dimming automatic shutoff function Scene priority lower higher Soft ON OFF Dimming speed Dimming behaviour Verz gerung nach Busspannungswiederkehr zyklisches Senden Object Disable Forced control B...

Страница 72: ...rminate the delay and set the switching status to OFF Feedback if a time delay has been preset and if the switching state is changed via the Switching object the delay time must have elapsed before fe...

Страница 73: ...solute dimming the dimming time will be provided for the entire brightness range and thus for a brightness change of 0 to 100 The DALI Gateway computes the dimming speed for a dimming increment of the...

Страница 74: ...Dimming behaviour Verz gerung nach Busspannungswiederkehr zyklisches Senden Object Disable Forced control Basically no new scene value will be stored if a disable or forced control position is active...

Страница 75: ...plug in of the DALI Gateway Set the Soft OFF function parameter in the Groups x group name Switch on switch off behaviour parameter node to Yes The Soft OFF function is now enabled The parameter for t...

Страница 76: ...ing state of the Switching object can be overridden by a Staircase timer function In combination with a disable function a time independent permanent lighting function can also be set up cf Disable fu...

Страница 77: ...Telegram Switch on brightness Switching status feedback ON TON TPrewarn Staircase lighting time retriggerable no ON time time time OFF ON TON TPrewarn ON ON Staircase lighting time retriggerable yes...

Страница 78: ...ase lighting time will not be retriggered An ON telegram received during the pre warning time will always retrigger the staircase lighting time independent of the Staircase lighting time retriggerable...

Страница 79: ...staircase lighting time TON of the Staircase timer function can be stopped prematurely This parameter is found in the Groups x group name Staircase timer function parameter node The Staircase timer fu...

Страница 80: ...ct only after the pre warning time has elapsed TPrewarn time time Reduced brightness during prewarning TON Switch on brightness DALI group Switching status feedback ON OFF Prewarning brightness Fig 29...

Страница 81: ...retriggerable parameter The Response to OFF telegram parameter is also evaluated during the pre warning time so that an active pre warning can be stopped prematurely by switching off Setting the behav...

Страница 82: ...d by selecting the Scenes node in the tree structure view followed by the New command via the context menu right mouse click After selecting a created scene in the tree structure view the scene config...

Страница 83: ...Switching Switching central function and Dimming objects of a group A Staircase timer function will also be overridden by a scene recall The priority of the scene function to the disable or forced con...

Страница 84: ...tness value to be set in case of a scene recall must be specified for each DALI group that has been assigned to a scene A group must be assigned to a scene in order to be able to edit the scene bright...

Страница 85: ...f a group that was programmed last via the ETS The brightness values parameterized in the ETS will be accepted into the DALI Gateway only if the Overwrite scene values during ETS download parameter ha...

Страница 86: ...ored permanently in the device cf Setting the storage behaviour for scene functions To prevent the stored values from being replaced during ETS programming of the application or parameters by the orig...

Страница 87: ...name parameter node to No The delay time is now deactivated A scene recall will be executed without delay immediately after the reception of a scene recall telegram Each scene recall telegram will res...

Страница 88: ...Scenes x scene name parameter node to Jump to The scene brightness values of the relevant scene will be immediately jumped to in case of a recall Set the Response to a scene recall parameter in the Sc...

Страница 89: ...r 2 4 Commissioning Once all the requirements have been met the DALI commissioning on the parameter page of the plug in with the same name can be executed The commissioning environment becomes visible...

Страница 90: ...tions Communication If needed set up the connection Cause the physical address and the application program have not been programmed via the ETS 3 Remedy close the plug in and program the physical addr...

Страница 91: ...assignment easier and more clearly Alternatively an assignment of devices to several groups can be permitted with this application program version if required The application program of version 0 2 o...

Страница 92: ...tiates whether a DALI device has been identified for the first time or whether it has been identified before during a commissioning Taking this distinction into account the plug in displays the device...

Страница 93: ...named or until the commissioning environment of the plug in has been quit For this reason it is recommended to assign a unique name immediately after the device search has been completed During the de...

Страница 94: ...ing the test functions are found in the lower margin of the commissioning environment cf figure 38 The devices to be tested have to be selected in the left partition first Clicking on the Start button...

Страница 95: ...the application program as follows In case of application programs of version 0 4 or 1 4 recommended it is initially only possible to assign a DALI device to only one group This makes the device assig...

Страница 96: ...de already assigned DALI devices default Select the required group for the devices in the right subwindow of the DALI commissioning environment cp fig 40 Fig 40 Select group Assign one or several exis...

Страница 97: ...e list box in the left subwindow and will be displayed for the selected group in the right subwindow If applicable carry out assignments for other groups as described Procedure for the group assignmen...

Страница 98: ...signed to another group the plug in will report that the device has already been assigned to another group so that feedbacks of switching states and brightness values may no longer be distinct After t...

Страница 99: ...located to separate instead of overlapping groups A KNX EIB link via the group addressing in the ETS is also preferred In the plug in each group can be separately parameterized During the programming...

Страница 100: ...must be quit before the commissioning parameters are transferred into the DALI Gateway and into the devices Select a different parameter page in the tree node view of the plug in or close the plug in...

Страница 101: ...sioning When closing the commissioning environment the commissioning parameters identified devices with short address names of the devices group assignment will be written and stored into the ETS data...

Страница 102: ...ive dimming It is also possible to check for the functioning of the configured scenes 1 16 The DALI test can only be executed if the group and scene assignments in the addressed DALI Gateway is curren...

Страница 103: ...TS 3 under Tools Options Communication If needed set up the connection Cause the physical address and the application program have not been programmed via the ETS 3 Remedy close the plug in and progra...

Страница 104: ...r a mains voltage failure depends on the DALI device in use Not all devices will track these states The Gateway can detect an error in the DALI line e g short circuit or interrupted line during the de...

Страница 105: ...reated in the device configuration can be edited and thus tested Groups not created are masked in grey During the group oriented DALI test each group can be independently switched on or off and dimmed...

Страница 106: ...p is activated the switching object will be written Feedback will also be created for the KNX EIB and the corresponding DALI group parameters will be included If no device has been assigned to the gro...

Страница 107: ...test So it is also possible to define a scene by reading out and storing scene values Figure 50 Scene oriented DALI test environment in this example with two created groups First the scene to be test...

Страница 108: ...tly set in the groups read out before new brightness values for a scene are saved The read out brightness values will be displayed in the drop down menus of the groups and can be edited at a later tim...

Страница 109: ...med and put into operation via the ETS only if the mains voltage is switched on The physical address is preset to 15 15 255 Upon delivery the following properties have been configured Manual control B...

Страница 110: ...le to monitor its supply voltage mains voltage connection and can transmit a message telegram to the bus in case of failure even before shutting down Setting yes activates the reporting function and e...

Страница 111: ...eration will show no response Blinking rate 1 s 2 s 5 s 10 s At the beginning and at the end of a disable function if used groups can also be parameterized to blinking In this case the corresponding d...

Страница 112: ...trol can be disabled via the bus even with the manual control mode activated For this purpose the disable object can be enabled at this point Polarity of disable object for manual control 0 enabled 1...

Страница 113: ...control during bus mode No change Track outputs The behaviour of the Gateway at the end of the permanent manual control depends on this parameter All telegrams received during an active permanent manu...

Страница 114: ...eedback telegram after bus voltage return 00 00 59 59 mm ss 5 s To reduce telegram traffic on the bus line after bus voltage activation bus reset or mains supply activation after connection of the dev...

Страница 115: ...n regardless of the operating state of the Gateway The value to be set at this point cannot exceed the parameterized maximum brightness minimum brightness maximum brightness During the editing of the...

Страница 116: ...he editing of the maximum brightness the ETS plug in will check all parameterized brightness values of the group e g switch on brightness scene values etc to see whether the values will exceed the max...

Страница 117: ...the return of bus or mains voltage or after programming with the ETS If the no Soft on function is activated the brightness value will be activated when switching on Behaviour after ETS programming S...

Страница 118: ...lue for each DALI group after a bus voltage failure The group will be switched off The group will be adjusted to the brightness value specified in the drop down menu next to the parameter The adjustab...

Страница 119: ...remain switched off Independent of the Switching object the Staircase timer function will be activated after bus mains voltage return Make sure that the Staircase timer function has been enabled In ca...

Страница 120: ...disable object The disable function will always be deactivated object value 0 after a bus or mains voltage return or after programming the application with the ETS In the inverted setting 1 enabled 0...

Страница 121: ...linking At the beginning of the disable the group will be adjusted to the brightness value specified in the drop down menu next to the parameter The adjustable value is restricted by the parameterized...

Страница 122: ...logic switching state is ON 1 The brightness reported back is the switch on brightness A Soft ON OFF function will be ignored during the blinking The blinking status will remain active until another...

Страница 123: ...hing or Switching central function object This memory value is non permanently stored so that the value is pre defined to the maximum brightness after the return of bus voltage or after programming wi...

Страница 124: ...tly stored at the time of bus voltage failure After programming the application or the parameters with the ETS the value is internally set to not active In case of an activated function the DALI devic...

Страница 125: ...memory value is permanently stored so that the value is pre defined to the maximum brightness after the return of bus or mains voltage or after programming with the ETS This parameter becomes visible...

Страница 126: ...ng Time delay for feedback telegram after bus voltage return Yes No The feedback telegram can be transmitted to the bus with a delay after bus voltage return or after programming with the ETS The Yes...

Страница 127: ...ssignment to central function Yes No This parameter determines the assignment of the DALI group to the central function The group is assigned to the central function The group is not assigned to the c...

Страница 128: ...becomes visible only when set to Dimming response to a brightness value Dim Automatic shutoff when falling below a specified brightness Yes No The automatic shutoff function for a group can be activat...

Страница 129: ...k Yes feedback object is active message object Yes feedback object is passive status object No The current brightness value of the DALI group can be reported back separately to the bus Feedback and ob...

Страница 130: ...anges The object value of the feedback can be transmitted in cycles The feedback telegram is transmitted to the bus in cycles and after a change of status Generally the cycle time will be programmed o...

Страница 131: ...ternatively retriggering can be suppressed setting No This parameter becomes visible only if the On delay or the On and OFF delay has been activated OFF delay time 00 00 01 23 59 59 hh mm ss 30 s This...

Страница 132: ...ion Yes No The Soft OFF function allows for a slowed down switch off of the DALI group If the function is activated setting Yes a dimming operation is started until the switch on brightness is reached...

Страница 133: ...tion has been enabled Response to OFF telegram Switch off Ignore An active switch on time can be cancelled prematurely by switching off the Staircase timer function The staircase lighting time is canc...

Страница 134: ...brightness will not start the shutoff function when it reaches or falls short of the specified shutoff brightness This parameter will be visible only if the Staircase timer function has been activate...

Страница 135: ...trol position however will not be terminated Only the scene brightness will be adjusted The scene function has a lower priority and cannot be executed for the groups incorporated in the scene if a dis...

Страница 136: ...lternatively the original values can be reloaded into the device during each ETS programming setting Yes Delay scene recall Yes No A scene is recalled via the scene extension object If needed the scen...

Отзывы:

Нет отзывов