590 Series DC Digital Drive Trips and Fault Finding
7-13
Test Points
The following test points are located on the control board and, used with a meter, will provide valuable information in the event of a fault. Refer to
Parker SSD Drives for further information.
P3 port
VP23
VP2
VP24
VP21
TP1
TP4
0V
TP2
TP5
TP3
TP6
Test Point Description
TP1
Armature current ± 2.2V ≡ ±200%, (value of CURRENT FEEDBACK diagnostic, Tag No. 298)
TP2
Buffered analog tach ±10V ≡ ±100%, (value of SPEED FEEDBACK diagnostic, Tag No. 207)
TP3 Armature volts 5V = +100%, +2.5V = 0%, 0V = -100% (mean voltage, value of TERMINAL VOLTS diagnostic, Tag No. 57)
TP4
Field current 4V ≡ 100%, (value of FIELD I FBK diagnostic, Tag No. 300)
TP5
Not used
TP6 Overcurrent trip 12V to -15V transition on trip
0V 0V
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