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Configuration

I/O assignment menu

The parameters can only be modified when the speed controller is stopped and locked.
The functions are defined in the section "Configurable I/O Application Functions".

Code

Assignment

Factory
setting

-tCC

Configuration of terminal block control : 2-wire or 3-wire control.
2C = 2-wire, 3C = -wire, OPt = presence of the local control option, operation is then identical
to 3-wire control.

2-wire control : The open or closed state of the input controls running or stopping.
Wiring example :
LI1 : forward
LIX : reverse

3-wire control (pulse control) : one pulse is all that is needed to control start-up.
Wiring example :
LI1 : stop
LI2 : forward
LIx : reverse

Changing the assignment of tCC returns the logic inputs to

factory setting :

• tCC = 2C : LI1 : "Forward", cannot be reassigned LI2 : rrS ("Reverse")
LI3 : PS2 LI4 : PS4

• tCC = 3C : LI1 : Stop, cannot be reassigned LI2 : For ("Forward"), cannot be reassigned
LI3 : rrS ("Reverse") LI4 : JOG

• tCC = OPt : LI1 : no, cannot be reassigned LI2 : PS2
LI3 : PS4 LI4 : PS8

2C

-LCC

Parameter only accessible with the remote display module option : no - YES
Enables control of the speed controller using the STOP/RESET, RUN and FWD/REV
buttons on the display module. The speed reference is then given by parameter LFr in the
SEt- menu. Only the freewheel, fast stop and DC injection stop commands remain active on
the terminal block. If the speed controller / display module link is broken, the speed controller
locks on an SLF fault.

no

I-0-

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Содержание ER21

Страница 1: ...BLEMO Frequenzumrichter Frequency Inverter ER21 user manual ...

Страница 2: ...peed controller and consequently the motor The motor itself may be stopped by a mechanical blockage Finally voltage variations especially line supply failures can also cause shutdowns If the cause of the shutdown disappears there is a risk of restarting which may endanger certain machines or installations especially those which must conform to safety regulations In this case the user must take pre...

Страница 3: ..._________________________________ 65 Setup Preliminary Recommendations________________________________________________ 71 Programming ___________________________________________________________________ 72 Local control option_______________________________________________________________ 74 Remote Display Module Option _____________________________________________________ 75 Configuration_________...

Страница 4: ... drC menus but if the factory configuration of the speed controller is not suitable for the application 6 Set the following in the Set menu If the speed controller factory settings are not suitable The acceleration ACC and deceleration dEC ramps The minimum LSP and maximum HSP speeds The motor thermal protection current ItH Other parameters as required if the factory configuration has been changed...

Страница 5: ...deceleration ramp in the event of overvoltage on braking Switching frequency 4 kHz Logic inputs LI1 LI2 2 directions of operation 2 wire control LI3 LI4 4 preset speeds 0 Hz 10 Hz 15 Hz 50 Hz Analog inputs AI1 0 10 V speed reference AI2 0 10 V or AIC 0 20 mA summing AI1 Relay R2 speed reference reached Analog output AO 0 20 mA motor frequency If the above values are compatible with the application...

Страница 6: ...16 ER21 3 0K 4 5 21 9 19 1 5 17 5 24 6 160 ER21 4 0K 5 5 7 5 38 33 2 22 27 5 38 250 ER21 5 5K 7 5 10 43 5 36 6 22 33 49 5 343 ER21 7 5K Motor Line supply BLEMO ER21 K Power indicated on plate 2 Line current 3 Max prosp line Isc Line current Max transient current 4 Power dissipated at nominal load Reference at U 1 at U 2 at 380 to 460V at 500V kW HP A A kA A A A W 0 75 1 3 9 3 5 5 2 3 2 1 3 5 33 ER...

Страница 7: ...nuous operation The switching frequency is adjustable from 2 to 15 kHz Above 4 kHz derate the nominal speed controller current The nominal motor current should not exceed this value Up to 12 kHz derate by 10 Above 12 kHz derate by 20 3 Typical value for a 4 pole motor and a maximum switching frequency of 4 kHz with no additional line choke 4 For 60 seconds ...

Страница 8: ...the air required for cooling purposes can circulate from the bottom to the top of the unit BLEMO ER21 K a mm b mm c mm G mm H mm 2 Ø mm 4 Ø mm weight kg 0 37K 0 75K 105 130 140 93 118 5 1 8 1 5K 0 75 4K 1 5 4K 130 150 150 118 138 5 2 5 2 2K 3 0K 4 0K 2 2 4K 3 0 4K 4 0 4K 140 195 163 126 182 5 3 8 5 5K 7 5K 5 5 4K 7 5 4K 200 270 170 180 255 6 6 1 11 0 4K 15 0 4K 245 330 195 225 315 6 9 6 ...

Страница 9: ... as shown below the degree of protection becomes IP20 If the cover is left on derate the nominal speed controller currentnominal speed controller current by 2 2 for every C above 40 C d 0 remove the protective cover from the top of the speed controller as shown below the degree of protection becomes IP20 and derate the nominal speed controller current by 2 2 for every C above 40 C from 50 C to 60 ...

Страница 10: ...ate used for equipotential earthing on the holes of the BLEMO ER21 heatsink using the 2 screws provided as shown in the drawing opposite BLEMO ER21 K b mm Ø mm 0 37K 0 75K 1 5K 2 2K 3 0K 4 0K 0 75 4K 1 5 4K 2 2 4K 3 0 4K 4 0 4K 48 4 5 5K 7 5K 5 5 4K 7 5 4K 11 0 4K 15 0 4K 79 4 4 Ø screws for fixing EMC clamps ...

Страница 11: ...quired control and braking resistor 1 Control 2 Power 1 or 2 terminals depending on the rating 3 Ground screw for motor cable on low ratings only Power terminals Specifications of power terminals BLEMO ER21 K Maximum connection capacity Tightening torque in Nm AWG mm2 0 37K 0 75K AWG 14 2 5 0 8 1 5K 0 75 4K 1 5 4K AWG 12 3 1 2 2 2K 3 0K 4 0K 2 2 4K 3 0 4K 4 0 4K AWG 10 5 1 2 5 5K 7 5K 5 5 4K 7 5 4...

Страница 12: ...Output to braking resistor All ratings PB Output to braking resistor All ratings PC DC bus polarity All ratings U V W Output to motor All ratings BLEMO ER21 ground terminal 5 5K 7 5K 5 5 4K 7 5 4K 11 0 4K 15 0 4K ER21 0 37K 0 75K 1 5K 2 2K ER21 3 0K 4 0K 0 75 4K 1 5 4K 2 2 4K 3 0 4K 4 0 4K ER21 5 5K 7 5K 5 5 4K 7 5 4K 11 0 4K 15 0 4K For the motor ground use the ground screw provided on the heatsi...

Страница 13: ...otected against short circuits and overloads AI2 AIC Analog voltage input or Analog current input AI2 or AIC are assignable Use either but not both Analog input 0 10 V impedance 30 kΩ or Analog input X Y mA X and Y can be programmed from 0 to 20 mA impedance 450 Ω Resolution precision and sampling time of AI2 or AIC AI1 AO Analog output Output can be programmed for 0 20 mA or 4 20 mA Precision 6 o...

Страница 14: ...atus 3 Internal 24 V If an external 24 V source is used connect the 0 V from that source to the COM terminal and do not use the 24 terminal on the speed controller Note Fit interference suppressors to all inductive circuits near the speed controller or coupled to the same circuit relays contactors solenoid valves etc Choice of associated components See BLEMO ER21 catalog ...

Страница 15: ...will operate even in the presence of DC components If the installation has several speed controllers on the same line each controller must be earthed separately If necessary fit a line choke consult the catalogue Keep the power cables separate from circuits in the installation with low level signals detectors PLCs measuring apparatus video telephone Control Keep the control circuits and the power ...

Страница 16: ...hielded cables with shielding connected to ground at 360 at both ends for the motor cable braking resistor if used and control command cables Conduit or metal ducting can be used for part of the shielding length provided that there is no break in continuity Ensure maximum separation between the power supply cable line supply and the motor cable Installation diagram ...

Страница 17: ... control For applications which require a large number of conductors small cross sections must be used 0 5 mm2 The shielding must be connected to ground at both ends This shielding must be unbroken and if there are intermediate terminals they must be in EMC shielded metal boxes 8 Shielded cable for connecting the braking resistor if used The shielding must be connected to ground at both ends This ...

Страница 18: ...hermal protection by thermistor fitted on the heatsink or integrated in the power module Indirect protection of the speed controller against overloads by current limit Typical tripping points motor current 185 of nominal speed controller current 2 seconds motor current maximum speed controller transient current 60 seconds Speed controller ventilation The fan is powered automatically when the speed...

Страница 19: ...olled by 2 different logic inputs LI1 is always assigned to the stop function Stop occurs on opening state 0 The pulse on the run input is memorized until the stop input is opened On power up or a manual fault reset or after a stop command the motor can only be powered once the forward reverse and DC injection stop commands have been reset Ramp switching 1st ramp ACC DEC 2nd ramp AC2 DE2 This can ...

Страница 20: ...ic input This function automatically assigns AI2 or AIC to speed reference 2 Connection diagram Contact open reference AI2 or AIC Contact closed reference AI1 If AI2 AIC is assigned to the PI function operation combines both functions see page 68 2 preset speeds 4 preset speeds 8 preset speeds Assign LIx to PS2 Assign LIx to PS2 then LIy to PS4 Assign LIx to PS2 then LIy to PS4 then LIz to PS8 LIx...

Страница 21: ...eceleration ramp time divided by 4 within the limits of the braking possibilities Fast stop occurs when the logic input assigned to this function opens state 0 Fault reset Clears the memorized fault and resets the speed controller if the cause of the fault has disappeared except for OCF overcurrent SCF motor short circuit EEF and InF internal faults faults which require the controller to be powere...

Страница 22: ...e BLEMO ER21 keypad Parameters which can be accessed in the adjust menu regulator proportional gain rPG regulator integral gain rIG PI feedback multiplication coefficient FbS is used to adjust the max value of the feedback so that it corresponds to the max value of the PI regulator reference reversal of the direction of correction PIC if PIC no the motor speed increases when the error is positive ...

Страница 23: ...r thermal state is greater than or equal to the thermal state threshold set by ttd in the adjust menu Analog output AO application functions Analog output AO is a current output which can be configured for 0 20 mA or 4 20 mA Motor current code OCr supplies the image of the motor rms current 20 mA corresponds to twice the nominal motor thermal current Ith Motor frequency code rFr supplies the motor...

Страница 24: ...not be active at the same time Stop functions take priority over run commands Speed references via logic command take priority over analog references DC injection braking Summing input PI regulator Reference switching Freewheel stop Fast stop JOG operation Preset speeds DC injection braking Summing input n n PI regulator n n n Reference switching n n Freewheel stop Fast stop JOG operation n Preset...

Страница 25: ...vital for cycles 60 s otherwise the load resistor may be damaged User adjustment and extension of functions If necessary the display and the buttons can be used to modify the settings and to extend the functions described in the following pages It is very easy to return to the factory settings There are three types of parameter display values displayed by the speed controller adjustment can be cha...

Страница 26: ...cy reference dcb DC injection braking in progress rtrY Automatic restart in progress nSt Freewheel stop command FSt Fast stop command Red LED powered up DC bus voltage 4 seven segment displays Enters a menu or a parameter or saves the displayed parameter or value Returns to the previous menu or parameter or increases the displayed value Exits a menu or parameter or aborts the displayed value to re...

Страница 27: ...r status Drive I O Nominal motor frequency 50 Hz factory setting or 60 Hz bFr rdY SEt drC SUP ENT ENT bFR configuration 1 ENT ESC ESC ESC ESC I 0 Settings Display Wait 3 seconds If it is not possible to access the SEt drC or I O menus the speed controller is protected by an access code A remote display module option or PC software is necessary to access these menus together with knowledge of the c...

Страница 28: ...faults The first press on the button stops the motor and if DC injection standstill braking is configured a second press stops this braking The reference given by the reference potentiometer is summed with analog input AI1 Installing this option requires special factory setting of certain functions I O tCC OPt not reassignable LI1 no not reassignable LI2 PS2 reassignable LI3 PS4 reassignable LI4 P...

Страница 29: ...f a switch to lock access to the menus and three buttons for controlling the speed controller FWD RV reversal of the direction of rotation RUN motor run command STOP RESET motor stop command or fault reset The first press on the button stops the motor and if DC injection standstill braking is configured a second press stops this braking View of the front panel View of the rear panel 4 character di...

Страница 30: ...art up Wiring example LI1 stop LI2 forward LIx reverse Changing the assignment of tCC returns the logic inputs to factory setting tCC 2C LI1 Forward cannot be reassigned LI2 rrS Reverse LI3 PS2 LI4 PS4 tCC 3C LI1 Stop cannot be reassigned LI2 For Forward cannot be reassigned LI3 rrS Reverse LI4 JOG tCC OPt LI1 no cannot be reassigned LI2 PS2 LI3 PS4 LI4 PS8 2C LCC Parameter only accessible with th...

Страница 31: ...d by the PI function if it is assigned If tCC 3C LI2 For forward cannot be reassigned If a function is already assigned to another input it still appears but its storage using is inactive The 4 or 8 preset speeds must be configured in the following order of assignment PS2 then PS4 then PS8 They must be cancelled in the reverse order see Configurable I O Application Functions rrS PS2 PS4 AIC Analog...

Страница 32: ...roportionally active 4 mA a 2 V 20 mA a 10 V For a 0 10 V input configure CrL at 0 and CrH at 20 4 mA 20 mA AO Analog output no not assigned OCr motor current 20 mA corresponds to twice the nominal motor thermal current ItH rFr motor frequency 20 mA corresponds to the maximum frequency tFr OLO motor torque 20 mA corresponds to twice the nominal motor torque OPr power supplied by the speed controll...

Страница 33: ...ent is greater than or equal to the threshold set by Ctd 1 SrA speed reference reached The contact is closed if the motor frequency is greater than or equal to the speed reference tSA thermal threshold reached The contact is closed if the motor thermal state is greater than or equal to the threshold set by ttd 1 SrA Add Address of the speed controller when it is controlled via the serial link Adju...

Страница 34: ... motor frequency marked on the rating plate 40 to 400 Hz 50 60Hz acc to bFr tUn Auto tuning Only active for V F ratios n and nLd Uft parameter no factory parameters of standard IEC motors donE auto tuning already done use the parameters of the auto tune which has already been done YES starts auto tuning When autotuning is completed rdY is displayed On returning to tUn donE is displayed If the faul...

Страница 35: ...ction may not be compatible with position control on a ramp or with the use of a braking resistor no YES YES Frt Ramp switching frequency When the output frequency becomes greater than Frt the ramp times taken into account are AC2 and dE2 If Frt 0 the function is inactive This parameter does not appear if a logic input is assigned to the ramp switching function rP2 0 to HSP 0 Hz SFr Switching freq...

Страница 36: ...in 2 wire control tCC 2C Check that any accidental start does not present any danger to personnel or equipment no Function inactive YES Function active USF Function only active for the USF fault no YES USF no OPL Enables the motor phase failure fault Inhibition of the fault if a switch is used between the speed controller and the motor no no function inactive YES function active no YES YES IPL Ena...

Страница 37: ...ine supply with 40 voltage drops no function inactive YES function active A line choke must be used The performance of the speed controller can no longer be guaranteed when operating at undervoltage no YES no SdS Scale factor for the display parameter SPd SUP menu used to scale a value in proportion to the output frequency the machine speed or the motor speed For example 4 pole motor 1500 rpm at 5...

Страница 38: ...meter appears if the local control option is present It defines the direction of operation forward For reverse rrS For rrS For ACC dEC Acceleration and deceleration ramp times Defined to range from 0 to nominal motor frequency FrS 0 0 to 3600 s 0 0 to 3600 s 3 s 3 s AC2 dE2 2nd acceleration ramp time 2nd deceleration ramp time These parameters are accessible if the ramp switching threshold Frt par...

Страница 39: ...erating instability 0 to 100 33 IdC Level of DC injection braking current After 5 seconds the injection current is peak limited at 0 5 Ith if it is set at a higher value 0 1 ItH to In 1 0 7 In 1 tdC DC injection standstill braking time If the time is increased to 25 5 s Cont is displayed The DC injection is then continuous at standstill 0 to 25 4 s Cont 0 5 s JPF Skip frequency prevents prolonged ...

Страница 40: ...ld beyond which the contact on relay R2 closes 0 to HSP bFr Ctd Current threshold beyond which the contact on relay R2 closes 0 1 ItH to 1 5 In 1 1 5 In 1 ttd Motor thermal state threshold beyond which the contact on relay R2 closes 1 to 118 100 tLS Low speed operating time Following operation at LSP for a defined period a motor stop is requested automatically The motor restarts if the frequency r...

Страница 41: ...d tHd Display the speed controller thermal state 100 corresponds to the nominal thermal state Above 118 the speed controller triggers an OHF fault drive overheated It can be reset below 70 LFt View the last fault which appeared If there has been no fault the display shows noF CPU Speed controller software version COd Parameter which can only be seen and accessed using a remote display module optio...

Страница 42: ...troller status the operating phase of the motor or a fault Init Initialization sequence rdY Speed controller ready 43 0 Display of the frequency reference dcb DC injection braking in progress rtrY Automatic restart in progress nSt Freewheel stop command FSt Fast stop command SUP ...

Страница 43: ...to the environment mounting and connections have been followed The first fault detected is memorized and displayed on the screen the speed controller locks and fault relay R1 is tripped Clearing faults Switch off the speed controller power supply in the event of a fault which cannot be reset Wait for the LED and the display to go off completely Find the cause of the fault in order to correct it Re...

Страница 44: ...o account without a reset being necessary Faults which cannot be reset automatically The cause of the fault must be corrected before resetting by powering down and then powering up Fault Probable cause Remedy OCF overcurrent ramp too short inertia or load too high mechanical blocking Check the settings Check the motor speed controller load sizing Check the state of the mechanism SCF motor short ci...

Страница 45: ...e line supply too low transient voltage dip damaged load resistor Check the voltage and the voltage parameter Reset Send the speed controller to be checked repaired ObF overvoltage during deceleration braking too sudden or driving load Increase the deceleration time Install a braking resistor if necessary Activate the brA function if it is compatible with the application PHF motor phase phase fail...

Страница 46: ...tputs Menu drive Code Factory setting Customer setting Code Factory setting Customer setting tCC 2C LI2 rrS LI3 PS2 LI4 PS4 AIC SAI CrL 4 mA mA CrH 20 mA mA AO rFr AOt 0 mA mA r2 SrA Add 1 bdr 19 2 Code Factory setting Customer setting Code Factory setting Customer setting UnS V V FrS Hz Hz tUn no tFr Hz Hz UFt n brA YES Frt 0 Hz Hz SFr 4 0 kHz kHz nrd YES Atr no OPL YES IPL YES StP no FLr no drn ...

Страница 47: ... AC2 5 0 s s dE2 5 0 s s LSP 0 0 Hz Hz HSP Hz Hz ItH A A UFr 20 SLP Hz Hz FLG 33 IdC A A tdC 0 5 s s JPF 0 Hz Hz JOG 10 Hz Hz rPG 1 rIG 1 s s FbS 1 PIC no SP2 10 Hz Hz SP3 15 Hz Hz SP4 20 Hz Hz SP5 25 Hz Hz SP6 30 Hz Hz SP7 35 Hz Hz Ftd Hz Hz Ctd A A ttd 100 tLS 0 0 s s The parameters in shaded boxes appear if the corresponding functions have been configured in the drC or I O menus SEt ...

Страница 48: ...BLEMO Frequenzumrichter Siemensstraße 4 D 63110 Rodgau Dudenhofen Tel 49 6106 82 95 0 Fax 49 6106 82 95 20 Web www blemo com Mail info blemo com ...

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