Error messages / troubleshooting
FAM 25/45/60/75/95
en(us)
Page 141/160
BEWA FAM25-95 3402054f en(us) 2013-06-13
2013-06-13
29. Check phase sequence
Cause:
The phase sequence relay checks the correct phase
sequence after switch-on.
A message is shown on the display.
Remedy:
Check the phase sequence.
Perform the following steps:
Step
Description
1. Message:
Check phase sequence
2.
Switch the unit off at the main switch and unplug the power connector.
3
Replacement of 2 phases on the mains plug (mains plug up to 32A
with phase changer), check mains voltage.
4.
Plug in the power connector and switch the unit on at the main switch.
->a. The fault is repeated.
-> proceed to Step 6.
5.
->b. The fault is not repeated.
-> proceed to Step 13.
6.
Pull power plug.
Check the functioning of the power supply cable and the connection
plug.
7.
Plug in the power connector and switch the FAM on at the main switch.
8.
->a. The fault is repeated.
-> proceed to Step 9.
->b. The fault is not repeated.
-> proceed to Step 13.
9.
Switch the FAM off at the main switch and unplug the power connector.
Replace the phase sequence relay.
10.
Plug in the power connector and switch the FAM on at the main switch.
11. ->a. The fault is repeated.
-> proceed to Step 12.
->b. The fault is not repeated.
-> proceed to Step 13.
12.
Contact the HYDAC Service Department.
13.
The fault is repaired.
NOTICE
Incorrect phase sequence
The motors / pumps rotate in the wrong direction.