Error messages / troubleshooting
FAM 25/45/60/75/95
en(us)
Page 123/160
BEWA FAM25-95 3402054f en(us) 2013-06-13
2013-06-13
4. Error, float switch of rotary vane vacuum pump at fill level Min. / fill
level Overflow
7. Error, float switch of water ring vacuum pump at fill level Max. / fill
level Overflow
8. Error, float switch of water ring vacuum pump at Min. / Max. fill level
Cause:
The MIN and Overflow switch points on the float switch of the
vacuum pump were reached at the same time.
The PLC outputs a message on the display.
Remedy:
Perform the following steps:
Step
Description
1. Message:
4. Error, float switch of rotary vane vacuum pump at fill level Min / fill
level Overflow.
7. Error, float switch of water ring vacuum pump at fill level Min / fill
level Overflow.
8. Error, float switch of water ring vacuum pump at Min. / Max. fill level.
2.
Switch off the FAM at the main switch.
3.
Check the level switch for correct functioning. For details see 114.
->a. Level switch is OK.
-> proceed to Step 5.
4.
->b. Level switch is not OK.
-> proceed to Step 7.
5.
Check the plug to the level switch.
Check the cable from the level switch to the control cabinet and in the
control cabinet to the PLC.
->a. The cable and plug are OK.
-> proceed to Step 9.
6.
->b. The cable and plug are not OK
-> proceed to Step 8.
7.
Replace the level switch.
-> proceed to Step 10.
8.
Replace the damaged parts
-> proceed to Step 10.
9.
The PLC is defective -> contact the HYDAC Service Department.
10.
The fault is repaired.