SERVICE MANUAL FS15x_V01-V02-V03-EN03_R3.doc
FROMM
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51
ALARMS
E5 - BASE EMERGENCY LIMIT SWITCH
“BASE SAFETY DEVICE”
Problem suggestion
Possible solution
- This alarm signal has been activated by the limit
switch of the base
- Check the situation, an object or person
has been positioned between mast and
turntable. (
Fig. 1
)
- Re-move this object or person.
- Limit switch not working properly (or not
connected)
- Replace the limit switch (2) (
Fig. 2
).
- The spring is positioned incorrectly
- Position the spring (3) correctly (
Fig. 3
).
- The plate have been blocked mechanically
- Release the plate.
Fig. 1
Fig. 2
Fig. 3
E5 - TABLE SAFETY DEVICE / TRANSPALLET / HORSESHOE
Problem suggestion
Possible solution
- This alarm signals that the entrance of the
horseshoe turntable is blocked for safety
reasons.
- Check the situation, remove the
mechanical block from the entrance.
(
Fig. 1
)
- Photocell incorrectly positioned or connected.
- Check the wiring. (1) (
Fig. 2
)
- Check the reflector. (2) (
Fig. 2
)
- Check LED 28 (3) on the PLC.
(If entrance is free LED have to be ON.
If LED is OFF, check wiring, photocell,
entrance of machine) (
Fig. 3
)
- Proximity sensor malfunction.
- Replace the proximity sensor. (1)
(
Fig. 2
)
- Mirror / Reflector incorrectly positioned or
broken.
- Check the mirror / reflector. (2) (
Fig. 2
)
Fig. 1
Fig. 2
Fig. 3
ES - SERVICE REQUIRED
Problem suggestion
Possible solution
- This alarm signals that service has to been done
- If maintenance will be done by a
qualified FROMM engineer. The timer
will be reset to ZERO and the alarm
disappear from the operating panel.
- Service has been done Alarm ES persists
- Timer has not been set to ZERO
- Call FROMM distributor.
2
3
1
2
3
