![background image](http://html1.mh-extra.com/html/ridder-drive-systems/polydrive-rpd-506-series/polydrive-rpd-506-series_product-manual_1457672033.webp)
9. SERVICE
If necessary remove covers to do the work. Refer to chapter 5.
For safe and correct servicing, read the (applicable) sections of:
•
Chapter 2, chapter 6, chapter 7 (§7.1, §7.2, §7.3) and chapter 10 (§10.1).
Always
put
removed
covers back
after the work! Refer to the end of chapter 7.
9.1 Troubleshooting
Troubleshooting is only permitted to approved personnel. This section tells about possible
malfunctions and their solutions. If a malfunction is not in the list that follows, contact your supplier.
Malfunction 1 The RPD does not operate when control signals are transmitted.
Observation 1
The output shaft of the reductor does not turn.
Cause 1
There is a problem with the connections or cables.
Solution 1
Do a check of the connections and cables and repair these if necessary.
Cause 2
The safety switch A2 or B2 is operated. The switching sense is not correct.
Solution 2
Interchange at the connection terminals (10) of the RLS:
•
Connections 1 and 3
•
Connections 2 and 4.
Cause 3
A duty switch (A1 or B1) is defective.
Solution 3
Replace the RLS.
•
If switching spring (5) operated A2, then A1 is defective
•
If switching spring (5) operated B2, then B1 is defective.
Cause 4
The system is locked in the Fail-Safe position.
Solution 4
Refer to §7.5 to unlock the system. Adjust the end positions
again
!
Malfunction 2 The RPD does not turn while the electric motor (EM) is in operation.
Observation 2
The electric motor (EM) turns, while the output shaft of the reductor does not
turn.
Cause 1
The electric motor is defective.
Solution 1
Do a check of the electric motor (EM) and replace it if defective.
Cause 2
There is a mechanical defect.
Solution 2
Remove the electric motor (EM). Do a check of the key and replace it if defective.
If the key is not defective, then replace the reductor.
Ridder Drive Systems B.V.
T
+31 (0)341 416 854 -
F
+31 (0)341 416 611 -
I
33
Summary of Contents for PolyDrive RPD 506 Series
Page 36: ......