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Page: 16 - Installation Manual - NC-200 PB

PIN

FUNCTION

Models A1, B and C

36 16

1 - RUN 1

2 - RUN 2

3 - SET

4 - JOG

Model A
External key
simulation. PAR 31

Model A1, B and C
footswitch connection

Models A, A1

Next block

Models A, A1
Double function
F1 + F2

Model A, A1

Mode B, C

The change to SLOW is forced at a previous programmable position

DESCRIPTION

Not connected. if the machine does not have a pressure sensor.

Pressure sensor
section 2.3.4

FAST approach before the bend conditioned to the maneouver safety
that requires "busy hands".

Model B

A - Electrical signal from the pressure sensor

Allows duplicating any 3 keys that may be selected - PAR 31

35, 36,

F2 - Forced X axis feed at the beginning of the bending sequence if
PAR65.2 = 1

8, 35

They respond according to the logic defined with the "BCD" selector

Confirmation of RAM at top dead position. Make sure that I13=1 to
begin the home search (A, A1, B)

If PAR65.1=1, requires previous input at I32

A1 - Confirmation that the programmed maximum pressure has been
exceeded to begin the delay "D".

F1 - Retracts the backstop X if there 's a conflict when bending,
conditioned by the editing attribute B in the slow speed stage

The X backstop automatically retracts at the position:
Y = sheet thickness

Only F2

Disables the axes
Disables the outputs

11, 12,

30, 31

Limit switches.
Hardware

EXTERNAL
EMERGENCY

In MANUAL mode, they limit the movement in the corresponding
direction.

In EXECUTION mode, they abort the program.

In HOME SEARCH mode, they respond as home switches in the
positive direction

"BCD" selector

36, 16

Displays error 20

2, 3, 4 - Incremental feed with the pitch set by PAR 32

1 - Continuous feed

14, 33,

5-position BCD
selector in MANUAL
mode - PAR32

5 - Y axis disable in EDITOR / TEACH-IN mode. It only displays it. It
allows withdrawing the punch by external means in "C" mode.

Semiautomatic in EXECUTION mode

Содержание NC-200 PB - V0111

Страница 1: ...INSTALLATION MANUAL FAGOR NC 200 PB NC FOR PRESS BRAKES Manual version 0111 ...

Страница 2: ...cription 15 2 3 2 Output description 17 2 3 3 Input output connection 18 2 3 3 1 Input output connection Model A 18 2 3 3 2 Input output connection Model A1 19 2 3 3 3 Input output connection Model B 20 2 3 3 4 Input Output connection Model C 21 2 3 4 Block change synchronism Models A A1 22 2 3 5 Block change synchronism Model B 24 2 4 Machine reference home search 26 2 4 1 X axis home search 26 2...

Страница 3: ... CEE Directive 4 Operation with the RS 232 C serial line 49 4 1 Saving and restoring data 49 4 2 Parameter transmitting format 49 5 SETUP 50 5 1 Test mode 50 5 1 1 Direct access to the parameters 53 5 2 Axis setting 54 5 2 1 Open loop without analog voltage output P46 3 0 P46 5 0 54 5 2 2 Open loop with analog voltage output PAR46 3 1 PAR46 5 0 55 5 2 3 Closed loop PAR 46 3 1 PAR46 5 1 55 Appendix...

Страница 4: ...ITY EN 50081 2Emission EN 55011 Radiated Class A Group 1 EN 55011 Conducted Class A Group 1 EN 50082 2 Immunity EN 61000 4 2 Electrostatic Discharges EN 61000 4 4 Bursts and fast transients EN 61000 4 5 Power surges EN 61000 4 11 Voltage fluctuations and Outages ENV 50140 Radiofrequency Radiated Electromagnetic Fields ENV 50141 Conducted disturbance induced by radio frequency fields As instructed ...

Страница 5: ...d for this unit Avoid electrical overloads In order to avoid electrical discharges and fire hazards do not apply electrical voltage outside the range indicated in chapter 2 of this manual Ground connection In order to avoid electrical discharges connect the ground terminals of all the modules to the main ground terminal Before connecting the inputs and outputs of this unit make sure that all the g...

Страница 6: ...wayfromsourcesofelectromagnetic disturbance such as Powerful loads connected to the same AC power line as this equipment Nearby portable transmitters Radio telephones Ham radio transmitters Nearby radio TC transmitters Nearby arc welding machines Nearby High Voltage power lines Disturbance generating elements of the machine Etc Safety symbols Symbols which may appear on the manual WARNING symbol I...

Страница 7: ...ES The repair will take place at our facilities Therefore all shipping expenses as well as travelling expenses incurred by technical personnel are NOT under warranty even when the unit is under warranty This warranty will be applied so long as the equipment has been installed according to the instructions it has not been mistreated or damaged by acci dent or negligence and has been manipulated by ...

Страница 8: ... unit The cardboard being used to make the box must have a resistance of 170 Kg 375 lb 2 WhensendingittoaFagorAutomationofficeforrepair attachalabelindicating the owner of the unit person to contact type of unit serial number symptom and a brief description of the problem 3 Wrap the unit in a polyethylene roll or similar material to protect it 4 Pad the unit inside the cardboard box with poly uthe...

Страница 9: ...l down stroke machines B Same as model A with a linear encoder or potentiometric scale for decoding theintermediateramorbedpositionsaffectingthebendingapproachspeedand depth With outputs to relays or to a PLC STOP Top dead point overrun S9 Fast ram approach S29 Slow speed controlled by the footswitches S28 Ram retraction With internal processing without external output Going through Y sheet thickn...

Страница 10: ...Page 10 Installation Manual NC 200 PB DIAGRAM OF A TYPICAL PRESS BRAKE Y X ...

Страница 11: ...diting and executing part programs etc The axes may also be moved manually from the dro keyboard or externally with footswitches 1 1 FRONT PANEL SEE OPERATION MANUAL 1 2 REAR PANEL Dimensions of the Built in model in mm On the back of the unit the following items may be found 1 Power switch 2 Three prong power connector for AC and ground connection 3 M6 mm terminal for general machine ground conne...

Страница 12: ...the unit is not under power It is NOT enough to turn the display off by using the key at the keyboard 1 3 GENERAL TECHNICAL CHARACTERISTICS Universal Power Supply between 100V AC and 240V AC 10 at a mains frequency between 45 Hz and 400Hz between 120Vdc and 300Vdc Mains frequency of 0 Hz DC and from 45 Hz to 400 Hz Power outages of up to 20 milliseconds 10 year memory backup of installation parame...

Страница 13: ...B Io Maximum frequency 250 KHz minimum separation between flanks 950 nsec Phase shift 90º 20º hysteresis 0 25 V Vmax 7V maximum input current 3 mA High threshold logic state 1 2 4V VIH 5V Low threshold logic state 0 0 0V VIL 0 8V They depend on the type of feedback and may not be connected 1 Pin Signal Function 1 A Feedback signals 2 A 3 B 4 B 5 Io Reference signal 6 Io 7 Alarm Feedback alarm 8 Al...

Страница 14: ... The main characteristics of the digital outputs are optocoupled with solid state relay with a normally open contact Maximum AC or DC voltage 48V Maximum load current 150 mA Maximum internal resistance 24Ohm Maximum peak current 500mA for 100ms at 25ºC Through current when open 1µA Leak current 200nA Vload 100V Galvanic isolation voltage 1500V for 1 minute Activation time 3ms Deactivation time 3ms...

Страница 15: ... 1 X fast 0 X slow 7 O X direction 8 I Not being used 9 O Fast approach Buzzer 10 O Height H 1 up 11 I X limit Io X 12 I X limit 13 I 14 I BCD 1 switch 15 I 16 I External key 1 External key 17 Chassis Pressure or scale input X analog output 19 I O 0V Analog 20 I 0V External 21 I 24V External 22 O 24V User 23 I Emergency 24 O Y enable 25 O 1 Y fast 0 Y slow 26 O Y direction 27 O Manual mode 28 O No...

Страница 16: ...f RAM at top dead position Make sure that I13 1 to begin the home search A A1 B If PAR65 1 1 requires previous input at I32 A1 Confirmation that the programmed maximum pressure has been exceeded to begin the delay D 13 F1 Retracts the backstop X if there s a conflict when bending conditioned by the editing attribute B in the slow speed stage The X backstop automatically retracts at the position Y ...

Страница 17: ... To control drives in closed loop drives When installing a pressure transducer or potentiometric scale connect it to pin 18 and change the position of the internal jumper MANUAL mode selection confirmation SLOW approach Section 2 3 4 A Retraction control by trigger time of the thermostat conditioned by the D attribute Single output The FAST SLOW change is handled with external resources from the e...

Страница 18: ... SIMULATION 18 27 NC 200 PB ANALOG X GNDA EMERGENCY 0V 24V 24V USER X ENABLE X SPEED X DIRECTION M Encoder MOTOR CONTROL ANALOG Y GNDA Y ENABLE Y SPEED Y DIRECTION 8 35 23 14 33 7 6 5 19 37 26 25 24 31 30 12 11 LIMIT Y LIMIT Y LIMIT X LIMIT X x1 x50 x100 Y Dis ß 10 13 32 29 MANUAL H AXIS IN POSITION NEXT BLOCK FEED RETRACT X AXIS 19 36 28 RETRACT RAM 34 Semiauto BUZZER 9 I n t e r f a c e 15 PRESS...

Страница 19: ...GENCY 0V 24V 24V USER X ENABLE X SPEED X DIRECTION M Encoder MOTOR CONTROL ANALOG Y GNDA Y ENABLE Y SPEED Y DIRECTION 23 14 33 7 6 5 19 37 26 25 24 31 30 12 11 LIMIT Y LIMIT Y LIMIT X LIMIT X x1 x50 x100 Y Dis ß 10 13 32 29 MANUAL H AXIS FEED RAM NEXT BLOCK FEED RETRACT X AXIS 19 28 RETRACT RAM 34 Semiauto BUZZER 9 I n t e r f a c e 15 PRESSURE SENSOR BCD 8 35 36 16 RETRACT FOOTSWITCH BEND FOOTSWI...

Страница 20: ...V 24V 24V USER X ENABLE X SPEED X DIRECTION M Encoder MOTOR CONTROL ANALOG Y GNDA Y ENABLE Y SPEED Y DIRECTION 23 14 33 7 6 5 19 37 26 25 24 31 30 12 11 LIMIT Y LIMIT Y LIMIT X LIMIT X x1 x50 x100 Y Dis ß 10 13 32 29 MANUAL H AXIS RAM SLOW TABLE TRAVEL LIMIT FEED X AXIS 19 28 RETRACT RAM 34 Semiauto RAM FAST 9 I n t e r f a c e 15 MANUAL STATION FAST FEED BCD 8 35 36 16 RETRACT FOOTSWITCH BEND FOO...

Страница 21: ...V 24V 24V USER X ENABLE X SPEED X DIRECTION M Encoder MOTOR CONTROL VALVE ANALOG Y GNDA Y ENABLE Y SPEED Y DIRECTION 23 14 33 7 6 5 19 37 26 25 24 31 30 12 11 LIMIT Y LIMIT Y LIMIT X LIMIT X x1 x50 x100 Y Dis ß MANUAL H AXIS BUZZER FREE 19 34 Semiauto I n t e r f a c e MANUAL STATION FAST FEED BCD 8 35 36 16 RETRACT FOOTSWITCH BEND FOOTSWITCH RUN 1 RUN 2 SET JOG BCD 27 10 13 32 29 28 9 15 FREE FRE...

Страница 22: ... bend output O28 is activated to force the ram to return automatically and it resets the analog output for pressure c When it reaches the top dead point I13 1 it resets O28 and goes on to the next block If PAR65 1 1 it requires a flank at I32 to confirm the contact of the punch with the sheet 3 With pressure sensor signal P64 6 0 connected to I15 and programmable delay for RAM UP When the pressure...

Страница 23: ... analog input P ar64 6 1 P ar64 7 0 c b a I18 CHANGE I13 BLOCK Analog Output A IN_POS O29 B E N D R E T U R N O 2 8 2 Pressure analog output I15 Pressure level P ar64 6 1 P ar64 7 1 a b c BLOCK I13 CHANGE A IN_POS O29 B E N D R E T U R N O 2 8 I15 Pressure level Block change 3 Pressure gage input P ar64 6 0 a b1 b2 b1 b3 ...

Страница 24: ...LOW speed is activated with the BEND footswitch 3 When pinching the sheet metal Y thickness it resets O29 to wait for the return of the X axis 4 Once the programmed bending depth has been reached the auxiliary feedback Y compares the difference Y Y PAR18 to begin the bending delay D attribute 5 After the delay D and depending on the selected cycle it activates the return If RUN1 RUN2 Automatic or ...

Страница 25: ...R28 SLOW O29 programmable By default P29 D I8 I8 I8 FAST 09 Retract X I15 RAM DOWN O28 MANUAL SET I35 JOG BEND footswitch I35 in EXEC RUN1 RUN2 1 2 3 4 5 6 X Y axes IN POSITION To enable O29 O9 O28 MANUAL CONTROL STATION I15 Begin bend FOOT CONTROL STATION BEND I8 STOP Cut off valve Sheet pinched FOOT CONTROL STATION E35 Fina bend position X Y in motion I8 ...

Страница 26: ...essing the relevant key it will suggest the PAR10 value by default with an option to select any other as described in later chapters 2 4 1 X AXIS HOME SEARCH PAR14establisheshowthemachinereference home searchistobecarriedout All models perform this home search in the positive direction TheXaxisusuallyhasatravellimitswitch PAR14bit1 0andarotaryencoder The home searching sequence is as follows Set t...

Страница 27: ...he backlash is properly compensated for If P17 1 the Y movement will be affected by the unidirectional approach and will return in the Y direction Press the BEND footswitch until the ram reaches its final position Output O27 is active A model to enable the footswitch Measure the distance between the support bases of the punch and die This distance will be the Yref to be preset Press The led will t...

Страница 28: ... final position a With a linear encoder Press to synchronize the Y axis home value set in PAR10 with that of its associated axis Y b With a linear potentiometer It requires two synchronization points for the value of the Y axis with the position of the table in order to obtain the V mm constant of the potentiometer and set an initial reference value 1 Pressr it displays the value of the potentiome...

Страница 29: ...as described in section 2 4 2 a If PAR00 bit 6 1 has been set for a linear encoder with distance coded reference marks The homing sequence is as follows Set the NC in Home search mode by pressing The led will turn on Select the axis The unit will display the text START Press Theaxismovesupwardsinthepositivedirectionuntildetectingtwoconsecutive reference marks I0 s and it displays the reference val...

Страница 30: ...limit switch is also the reference input that is deactivated when reversing the movement direction A certain margin should be kept in order to reach a stable slow feedrate before receiving the reference mark I0 also overshooting the amount of backlash set at PAR16 Standard clamps allow some rotation of the encoder body to make this adjustment easily Once the home search is finished the axis moves ...

Страница 31: ...e SUB D type connector Parameter PAR90 sets the transmission speed through this line See section 3 5 in this manual The operating mode for this feature is described in chapter 5 of the Operating Manual Pin Signal Function 1 NC Not connected 2 RxD Receive Data 3 TxD Transmit Data 4 NC Not connected 5 GND Ground 6 9 NC Not connected ...

Страница 32: ...rything is OK and the error number if otherwise See the appendix at the end of this manual Turning the unit OFF If you press this NC turns off the displays while maintaining the power supply to the feedback systems and goes on reading the position of the axes at all times This is not the case when the equipment is switched off by means of the switch on its rear panel To reset the displays just pre...

Страница 33: ... corresponding axis key to modify it If it is a general parameter the X display will show its current value The LCDdisplay will show the description of the parameter and its number There are several kinds of parameters depending on how to set them Binary values 1 0 are displayed in an 8 digit row identified as 1 through 8 from right to left Their state changes by pressing their associated number k...

Страница 34: ...lay will shows the parameter number and a short description If it is a general parameter its value is only shown on the first display If it is an axis parameter each axis display will show its current value In this case select the axis by pressing its key or and key in its new value To go to the next parameter saving the changes Press or to go to the next one To return to the previous one press Pr...

Страница 35: ...r linear encoder without O for this axis this bit must be set to 0 When using an M or F series Fagor linear encoders with distance coded reference marks e g MOVX FOP for this axis this bit must be set to 0 Whenusinga C typelinearencoderwithdistance codedreference marks e g COX COVP for this axis this bit must be set to 1 7 Pitch of the distance coded Io 0 20 mm 1 100 mm This bit is ignored if bit ...

Страница 36: ...sired change the value of this digit It conditions the setting of the sign bit PAR46 2 and the sign of the analog voltage PAR01 Feedback resolution independent for each axis Possible values from 0 0001 mm to 1 mm From 0 000001 to 0 03937 inch factory setting 0 0050 mm PAR02 TTL multiplying factor subdivision Independent for each axis Options x4 x2 x1 and x0 5 The selection of these values rotates ...

Страница 37: ...ewavesignalsanddistance coded reference marks models with O eg MOX COX etc it must be set to 5 For Fagorlinearencoderswithsquarewavesignalsanddistance coded reference marks models with O and 0 5µm resolution eg MOY COY etc it must be set to 10 PAR05 Resolution PAR01 correction factor It may be used for adapting any resolution even fractional when the encoder is affected by a mechanical gear reduct...

Страница 38: ...the axis exceeds this distance the corresponding axis display starts blinking until it is moved back into the work zone PAR13 To set the maximum axis travel limit Possible values within 99999 999 This value will be in mm or inches depending on whether the INCH LED is off or on If PAR08 2 1 limit alarms ON when the axis exceeds this distance the corresponding axis display starts blinking until it i...

Страница 39: ...rectional approach 0 There is no unidirectional approach X axis 2 It will be applied when moving in the positive direction Y axis 1 It will be applied when moving in the negative direction PAR18 It indicates the multiplying factor applied onto leadscrew backlash PAR16 inordertocalculatetheovershootingdistanceinunidirectional approach Inordertoassurethatthereturnwillbedoneatslowspeed set P26 P16 x ...

Страница 40: ...rgency 6 8 Return foot switch 5 36 External key 3 A EXECUTION mode selector 4 35 External key 2 A BEND foot switch 3 16 External key 1 A EXECUTION mode selector 2 34 Disable the Y axis Teach in 1 15 Hands on palm switches pressure level PAR23 Indicates the active level of the first 8 outputs By default they are set to 1 meaning that when activated they provide 24V Digit Pin 8 10 H output 7 27 Manu...

Страница 41: ... PAR26 Indicates the braking distance slowdown point By default this unit sets P26 P27 if P26 P27 See the following time diagram Possible values From 0 0001mm to 99999 999 mm From 0 000005 to 3937 Recommended value between 1 and 5 mm PAR27 Indicates the stopping distance stop offset It does not admit PAR27 0 See time diagram below Possible values From 0 0001mm to 99999 999 mm From 0 000005 to 3937...

Страница 42: ...may be forced from the editor It is referred to as the d attribute PAR30 DefaultvalueofthedelayappliedtotheXaxismovementbeforethenext positioning move only if when moving towards X Possible values between 0 seconds to 9 9 seconds It may be forced from the editor It is referred to as the t attribute PAR31 Model A Configuration of the 3 inputs for external key simulation through pins 16 35 and 36 of...

Страница 43: ...cording to PAR01 For example if the resolution selected in PAR01 is 5 microns and with the switch set to position 4 the axis is to be moved 500 microns 0 5 mm every time are pushed PAR32 3 must be assigned the value of 100 The maximum value is 255 units of resolution PAR33 Speed change position Models B and C It sets the relative height between the punch and the top side of the sheet where the spe...

Страница 44: ... direction the distance set by PAR37 1 Move it in absolute mode the value set by PAR37 PAR37 X axis retraction distance incremental or position absolute when activating the I32 signal of the 37 pin connector X2 on Model A or when the punch reaches the Y sheet thickness position on B and C models Possible values From 0 mm to 99999 999 mm From 0 to 3937 PAR39 Analog voltage centering Back and forth ...

Страница 45: ...e threshold in order to allow a linear response Possible values Between 0V and 10V PAR45 Minimum analog voltage set for movements in the negative direction only ifclosedloop Dynamicimprovementwithproportionalhydraulic valves that usually require a considerable voltage threshold in order to allow a linear response Possible values Between 0V and 10V PAR46 Axis control Digit 8 7 6 Not being used at t...

Страница 46: ... resources This unit will assume the attribute values set by parameters PAR29 d and PAR30 t 7 On A and A1 modelswithanelectricalsignalfromthepressuregage the top dead point may be preset with the D variable timing the ram up movement Productivity may be improved when dealing with small parts If 1 to activate this feature If 0 to deactivate this feature The block change is only forced when the ram ...

Страница 47: ... the X axis in open loop If 1 and jumper towards U7 it is set as an analog output 6 Setting of pin 18 If 0 it is selected as analog output for the X axis If 1 it is selected as an input or output PAR64 7 for the pressure gage The X axis will be controlled in open loop without using the analog output PAR46 5 0 PAR46 3 0 2 If 0 LCD screen If 1 VFD screen blue 1 Not being used at this time It must be...

Страница 48: ...afety regulations for rapid feed Install a push button on the operator panel for starting each bending sequencewhenmovingtowards X I32issharedwiththemicroswitch detecting the contact between the punch and sheet metal 1 If 1 There is a detector for punch sheet contact Use the B attribute to provoque the return of the X axis It requires a previous flank at I32 to confirm the change of block with I13...

Страница 49: ...Select the Com option communications of the LCD display by means of the and press Select Send and press to send the data out to a PC or peripheral device or select Receive and press to receive data from a PC or peripheral device Select the type of data to transmitParameters Program Materialsbymeans of the keys and press 4 2 PARAMETER TRANSMITTING FORMAT The format of the transmitted parameters are...

Страница 50: ...to access this mode 719200 The message display offers four options that may be selected with INPUT Testing inputs In The 1st line shows 0 s and 1 s indicating the status of inputs I1 through I8 from right to left The 2nd line shows the status of inputs I9 through I15 OUTPUT Forcing outputs out Digital outputs The 1st line shows 0 s and 1 s indicating the status of outputs O1 through O8 from right ...

Страница 51: ... the analog input at pin 18 Select While moving the ram or the base it is possible to compare the maximum minimum values of the cursor Auto It is enabled in automatic mode to fine tune the values of the two param eters involved in the adjustment of the axes Vmin to adjust the minimum voltage Select the or axis Anauxiliarymodeisavailabletooperatewiththeaxisinopenloopanddisplay the offsets of the dr...

Страница 52: ...eeps Pressing aborts the active movement and increases Kv in 10 units This test may be interrupted by pressing Selecting and pressing offers three options I0s Testing of the encoder I0 s The 2nd line shows 0 s and 1 s indicating the level of the encoder I0 s for the X and Y axis from right to left Moving the axis slowly by hand the I0 will be detected with a short blinking PULSES Testing the numbe...

Страница 53: ...d turn the unit on The unit will access directly to PAR00 of the parameter table Press 22 to go to PAR22 By default all the digits are set to 1 indicating that the inputs recognize a 1 when activated with 24V If parameter PAR22 7 has been changed to 0 press 7 to force a 1 This cancels the external emergency even when the emergency input I15 is not connected Exit to the main menu by pressing Safety...

Страница 54: ...G VOLTAGE OUTPUT P46 3 0 P46 5 0 Method recommended in drive systems with one or two speed ranges activated with three digital outputs ENABLE FAST SLOW DIRECTION The control of electronic inverters or electro valves very common on press brakes is obtained with simple relay circuits R1 R2 R3 ENABLE FAST SLOW DIRECTION 24V R1 R3 R2 SLOW FAST FORWARD BACK INVERTER R1 R2 R3 UP FAST DOWN FAST GENERAL D...

Страница 55: ...rallel with the relay Forcing PAR27 with small values may result in a sudden braking and a later release when the axis reaches the end point If the axis is forced to get out of the in position zone the enable signal and the analog voltage for the slow speed are activated to restore the programmed coordinate 5 2 3 CLOSED LOOP PAR 46 3 1 PAR46 5 1 Method especially developed for the Y axis on C type...

Страница 56: ...s in the slow range of the bending stage Figure 1 shows a braking with little dampening with small Kv value Figure 2 corresponds to an ideal adjustment of the bending stage that requires special attention in the following parameters PAR45 Minimum analog voltage Very critical value to achieve a very slow final approach PAR41 PAR19 Adjustment of the dampening degree when switching from slow to minim...

Страница 57: ...Error 06 Errors in data backup memory Service Dept Error 07 Emergency input active Press C or cancel emergency signal Error 08 Wrong software memory or the software has been changed Error 09 Errors in work memory Service Dept Error 12 Error while searching a coded marker pulse Io Error 20 Travel limit switch pressed on that axis Error 31 Internal malfunction Service Dept Error 32 Internal malfunct...

Страница 58: ...ck device If the fault persists get in touch with Fagor Automation s Customer Services Department about it MAINTENANCE Cleaning An accumulation of dirt in the equipment can act as a screen preventing proper dissipation of the heat generated by the internal electronic circuits with the consequent danger of overheating and NC fault Accumulated dirt can also in some cases provide a conductive path fo...

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