May 2013
6-25
Xerox® WorkCentre® 5790 Family
GP 10
General Procedures/Information
GP 10 How to Check a Motor
This procedure describes how to check the following motors:
•
Two Wire DC Motors
.
•
Four Wire Stepper Motor
•
Six Wire Stepper Motor
.
Initial Actions
WARNING
Ensure that the electricity to the machine is switched off while performing tasks that do
not need electricity. Refer to
GP 14
. Disconnect the power cord. Electricity can cause
death or injury. Moving parts can cause injury.
1.
Check that the motor is free to rotate.
2.
Check that all the motors mechanisms are clean, free to move and lubricated correctly.
3.
Enter the component control code for the motor, refer to
dC330
. Run the motor for 30 sec-
onds, if the motor shows signs of or can be heard to slow down, then the motor is defec-
tive. Replace the motor.
4.
Perform the appropriate procedure:
•
Two Wire DC Motors
.
•
Four Wire Stepper Motor
.
•
Six Wire Stepper Motor
.
NOTE: The voltages, PJ numbers, pin numbers and PWB names shown are an example
only. Go to the circuit diagram in the RAP for the correct information.
NOTE: For the motors supplied through the IOT PWB, refer to the
OF7
IOT Diagnostics
RAP.
Two Wire DC Motors
NOTE: In cases where the motor may be driven forward or backward, the same two feed wires
are used, but the voltages on them are reversed, to reverse the motor direction. Such motors
may have two component control codes, for forward and reverse. A typical application is a tray
lift motor with a tray-up and a tray-down direction.
•
Go to
Flag 2
. Disconnect PJB. Check that +24V is measured when the component control
code for the motor is entered.
•
Go to
Flag 1
. Disconnect PJA. Check for +24V on the LVPS.
•
Go to
Flag 3
. Disconnect PJC. Check that the signal changes on the IOT PWB when the
component control code for the motor is entered.
•
Check the wiring and the connectors for the motor circuit.
References:
•
01G
+24V Distribution RAP.
•
01B
0V Distribution RAP.
•
REP 1.2
Wiring Harness Repairs.
Four Wire Stepper Motor
NOTE: A stepper motor with an internal open circuit may appear to be fully functional under
dC330
component control. However, under normal operation it will run with intermittent failure.
Use the standard digital meter to check that the resistance of the stepper motor coils are simi-
lar.
NOTE: In some service manuals, the phase winding wires, A, /A, B and /B may be marked: A+,
A-, B+ and B-, or as: phase A+, phase A-, phase B+ and phase B-.
•
Go to
Flag 6
. Disconnect PJH. Check the motor on pulses on the harness when the com-
ponent control code for the motor is entered.
•
Go to
Flag 6
. Disconnect PJJ. Check the motor on pulses on the harness when the com-
ponent control code for the motor is entered.
•
Check the wiring and the connectors for the motor circuit.
References:
•
01G
+24V Distribution RAP.
•
01B
0V Distribution RAP.
•
REP 1.2
Wiring Harness Repairs.
Six Wire Stepper Motor
NOTE: A stepper motor with an internal open circuit may appear to be fully functional under
dC330
component control. However, under normal operation it will run with intermittent failure.
Use the standard digital meter to check that the resistance of the stepper motor coils are simi-
lar.
NOTE: In some service manuals, the phase winding wires, A, /A, B and /B may be marked: A+,
A-, B+ and B-, or as: phase A+, phase A-, phase B+ and phase B-.
•
Go to
Flag 5
. Disconnect PJF. Check the +24V supply and the motor on pulses when the
component control code for the motor is entered.
•
Go to
Flag 4
. Disconnect PJD. Check the +24V, +5V and 0V supplies.
•
Go to
Flag 4
. Check the clock pulses.
•
Go to
Flag 4
. Check that the signal on PJD pin 13 changes when the component control
code for the motor is entered.
•
Check the wiring and the connectors for the motor circuit.
References:
•
01G
+24V Distribution RAP.
•
01E
+5V distribution RAP.
•
01B
0V Distribution RAP.
•
REP 1.2
Wiring Harness Repairs.
Summary of Contents for WorkCentre 5790 Series
Page 1: ...Xerox WorkCentre 5790 Family Service Manual 708P90298 May 2013 ...
Page 4: ...May 2013 ii Xerox WorkCentre 5790 Family Introduction ...
Page 20: ...May 2013 xviii Xerox WorkCentre 5790 Family Translation of Warnings Introduction ...
Page 22: ...May 2013 1 2 Xerox WorkCentre 5790 Family Service Call Procedures ...
Page 32: ...May 2013 1 12 Xerox WorkCentre 5790 Family SCP 7 Service Call Procedures ...
Page 53: ...May 2013 2 21 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 1 3 3V Return ...
Page 54: ...May 2013 2 22 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 2 3 3V Return ...
Page 56: ...May 2013 2 24 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 3 5V Return ...
Page 57: ...May 2013 2 25 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 4 5V Return ...
Page 59: ...May 2013 2 27 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 5 12V Return ...
Page 61: ...May 2013 2 29 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 6 24V Return ...
Page 62: ...May 2013 2 30 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 7 24V Return ...
Page 63: ...May 2013 2 31 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 8 24V Return ...
Page 95: ...May 2013 2 63 Xerox WorkCentre 5790 Family 01K Status Indicator RAPs Figure 2 Circuit diagram ...
Page 96: ...May 2013 2 64 Xerox WorkCentre 5790 Family 01K Status Indicator RAPs ...
Page 178: ...May 2013 2 146 Xerox WorkCentre 5790 Family 06 350 Status Indicator RAPs ...
Page 592: ...May 2013 2 560 Xerox WorkCentre 5790 Family 16B 16C Status Indicator RAPs ...
Page 596: ...May 2013 2 564 Xerox WorkCentre 5790 Family 19 409 Status Indicator RAPs ...
Page 698: ...May 2013 3 2 Xerox WorkCentre 5790 Family Image Quality ...
Page 736: ...May 2013 3 40 Xerox WorkCentre 5790 Family IQS 8 Image Quality ...
Page 742: ...May 2013 4 6 Xerox WorkCentre 5790 Family Repairs Adjustments ...
Page 772: ...May 2013 4 34 Xerox WorkCentre 5790 Family REP 3 4 Repairs Adjustments ...
Page 938: ...May 2013 4 200 Xerox WorkCentre 5790 Family REP 9 10 Repairs Adjustments ...
Page 994: ...May 2013 4 256 Xerox WorkCentre 5790 Family REP 11 17 110 Repairs Adjustments ...
Page 1014: ...May 2013 4 276 Xerox WorkCentre 5790 Family REP 11 15 120 Repairs Adjustments ...
Page 1166: ...May 2013 4 428 Xerox WorkCentre 5790 Family REP 14 20 Repairs Adjustments ...
Page 1168: ...May 2013 4 430 Xerox WorkCentre 5790 Family ADJ 3 1 ADJ 3 2 Repairs Adjustments ...
Page 1174: ...May 2013 4 436 Xerox WorkCentre 5790 Family ADJ 4 1 Repairs Adjustments ...
Page 1242: ...May 2013 4 504 Xerox WorkCentre 5790 Family ADJ 14 1 ADJ 14 2 Repairs Adjustments ...
Page 1386: ...May 2013 6 2 Xerox WorkCentre 5790 Family General Procedures Information ...
Page 1524: ...May 2013 6 140 Xerox WorkCentre 5790 Family Fax Tags General Procedures Information ...
Page 1526: ...May 2013 7 2 Xerox WorkCentre 5790 Family Wiring Data ...
Page 1554: ...May 2013 7 30 Xerox WorkCentre 5790 Family PJ Locations Wiring Data ...
Page 1604: ...May 2013 8 2 Xerox WorkCentre 5790 Family Accessories ...
Page 1606: ...May 2013 8 4 Xerox WorkCentre 5790 Family ACC 1 Accessories ...
Page 1610: ...XEROX EUROPE ...