R&M Materials Handling HOIST MONITORS - Manual (Page 66)

R&M Materials Handling, Inc.
4501 Gateway Boulevard
Springfield, Ohio 45502
P.: (937) 328-5100
FAX: (937) 325-5319
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R&M Materials Handling, Inc. reserves the right to alter or amend the above information without notice.
13 Faults and warnings
13.1 Faults
Fault means that the hoist control unit has detected a situation that prevents the hoist from running. The
hoist control unit stops the motion, indicates the fault text on the display and illuminates the red LED
continuously on both the unit and display. Depending on the detected situation and parameter settings,
only hoisting or only lowering is allowed, or running the hoist is totally prevented by the hoist-monitoring
unit.
The fault messages shown on the display are given in the table below. The messages appear when the
corresponding fault is detected. The message disappears automatically when the corresponding fault
situation is cleared. Also it is possible to clear the message and return to the original display by pushing
the ENT–button. However, as long as the fault is active, the red LEDs are illuminated and the fault
message can be read from the status mode.
13.1.1 Fault codes and description
Fault name Code
(Fault Logger) Description Running
Hoist OL F_OL Hoist overload Hoisting prevented, lowering allowed
Motor OT F_OT Hoist motor overtemperature Hoisting (and lowering) prevented
Int. relay F_SR A fault detected in the internal safety relay Running prevented
RUN act. F_Run A fault detected in controlling the direction outputs, only in two-step
control Running prevented
Run FB – *) The hoist stops although the unit controls it to run Controls to stop, new start possible
Brake F_Br Hoist brake does not open, only in motor based load calculation Lowering prevented
Br wear F_Brw Hoist brake worn-out, only when the sensor applied Hoisting (and lowering) prevented
Sensor ch. F_SCh Measurement signal out of acceptable range Hoisting prevented
Curr.meas. F_Ain Measurement signal out of acceptable range Hoisting prevented
Supply vol F_SPh Main supply fault, one phase missing, only when main supply
measured Running prevented
Phaseorder F_Sor Main supply fault, incorrect phase order, only when main supply
measured Running prevented
Mparameter F_MP Internal parameter reading or writing fault Running prevented
Cparameter F_CP Internal parameter reading or writing fault Running prevented
CAN bus F_CAN CAN bus communication fault, only in multi hoisting Running prevented
Bridge OL F_BOL Overload in calculated bridge load, only in multi hoisting Hoisting prevented, lowering allowed
Bridge RS F_BRS Fault in multi hoisting, requests for running or stopping not
simultaneous Running stopped, new start possible
Slack Rope – *) Slack rope function is active Lowering prevented
No Signal – *) Communication fault between unit and display or
Internal processor fault Running possible
Running prevented
– *)These faults are not collected into the fault logger (parameter 5-2)