R&M Materials Handling HOIST MONITORS User Manual
Page 76
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.
Correct wiring
Wrong wiring
c_curtr1a
2
1
3
c_curtr2a
2
3
1
1. Terminal block
2. Current transformer
3. Contactor
14.6 There is no fault, but hoist doesn’t work
14.6.1 Hoisting works, but lowering is prevented
•
Check the Slack Rope function with parameter 4-9-1
•
Slack Rope is detected during normal operation: Decrease the Slack Rope detection level
•
If the slack rope function is not needed, set to “No”
•
If the slack rope function is needed in some cases but not always, consider installing a slack rope by-
pass switch with either one of the MFI-inputs.
SW 2.100 or later: When slack rope function is activated the unit shows “Fault Srope” on the
display. If unit’s software is SW 2.004 or earlier the unit doesn’t show anything when slack rope is
activated and lowering is prevented.