Specifications

RTS 2nd Generation SERVO AMPLIFIER
55
PVD 3487 GB 03/2004
7.3 Diagnostic helpI
ENERGISING
Check :
• terminals X1/10 and X1/11 must be connected to 0V
• selector S1 must be in correct position
• reference voltage is present
"POWER ON" flashes
« POWER ON » on
"POWER ON" of
f
Check which LED on side of
card
Measure voltage at terminals U, V, W
Check fuse
F1 (gauge 5 x
20
)
Check fuses, main
switch and
transformer
connections
Voltage
present
No
voltage
Motor races and "TAC" LED lights up
Check tachometric dynamo wiring, invert
tacho wires if fault arises during first time use.
Motor under current control: selector S1 must
be changed.
Check motor wiring and fuses. If the dI/dT
LED is on, check the motor is not short-
circuited and there is no ground fault.
Motor fails to rotate
Check the ventilation system is working correctly.
A
mbient temperature of the electrical cabinet must
be less than 40°C.
"CT" (temperature) LED is on
The motor is unstable and vibrates
Reduce gain using the front panel
potentiometer : turn anti clockwise
Check the motor and servo amplifier are grounded
(mandatory).
Check the speed reference is stable (with oscilloscope)
and ±15 V voltages if necessary.
Check the customisation components correspond to the
motor.
No effect
Adjust zero speed with the "SPEED OFFSET"
p
otentiometer
Adjust speed with "SPEED OFFSET" potentiometer
Motor drifts
Incorrect speed
Motor fails to rotate