Rittal BC 1007 HS, Руководство пользователя

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Diode check – DARC 2 Servo drives only!
Caution: QUALIFIED ELECTRIAL TECHNICIANS ONLY – Be sure that all electrical safety measures are
implemented before servicing the servo drives. Power off the machine electrical disconnect and use
proper lock-out/tag-out procedures. 600vdc may be present on the DC bus. Power down and
properly discharge the DC bus before servicing the machine.
3.13.1 Servo Power Control Module
The first check that should be made will be on the Servo Control Module (Located at the far
right of the servo bank, labeled 110T1)

Remove all power input leads from the bottom of 110T1.

Using a multimeter, check for resistance between;
o
L1 to Ground (Should read ∞)
o
L2 to Ground (Should read ∞)
o
L3 to Ground (Should read ∞)
o
L1 to L2 (Should not indicate low resistance or short)
o
L2 to L3 (Should not indicate low resistance or short)
o
L1 to L3 (Should not indicate low resistance or short)

If a short to ground or low resistance is measured on any input lead, it is likely the Servo
Control Module is defective and require replacement. Continue with the following steps
to determine if a Servo Drive could be the root cause of a shorted Servo Control Module.
Note: To check the diodes of a DARC 2 system you need a digital multimeter with the ability to test
diodes. (If you can only measure the resistance, go to section 3.13.4)