R&M Materials Handling HOIST MONITORS User Manual
Page 49
R&M Materials Handling, Inc.
4501 Gateway Boulevard
Springfield, Ohio 45502
P.: (937) 328-5100
FAX: (937) 325-5319
49/105
R&M Materials Handling, Inc. reserves the right to alter or amend the above information without notice.
9.3.2.5 Second overload limit ”2OLL”
•
When MFI1 input is activated then the hoist can lift over the nominal load (1.00 – 1.30 x nom.).
•
Check by parameter 1-2-14, that MFI1 status bit is 1 when lifted in the area where need lift more than
nominal load.
9.3.2.6
Levelling function ”Level”
•
Drive one of the hooks higher upwards than the other(s)
•
Select common hoisting with the selector switch on the control station.
•
Drive all hooks upwards to the upper limit.
•
When the highest hook stops, the other(s) should continue until the hooks are balanced
9.3.2.7 Bridge intermediate load limit ”CIntL”
•
Bridge intermediate load limit is activated when input is not active.
•
When actual load value exceeds a limit and the input is not active the unit works similarly as in
overload situation.
•
Check bridge intermediate load limit value by parameter 4-2-5.
•
Check that the hoist control device sees then the input status by parameter 1-2-14. MFI1 input’s
status bit is second bit from the right (XXX1X)
9.3.2.8 By-pass CAN-bus ”CAN”
•
The control unit must have a button or a switch for this functions.
•
CAN bus by-pass function is activated when input is active.
•
Test that the hoist control device sees the input status by parameter 1-2-14.
9.3.3 Functional free relay output ROUT
•
Check the relay operation by parameter 4-3-1
•
Check the operation logic of the relay by parameter 4-3-2. Normal operation is as described below.
9.3.3.1 Overload ”OL”
•
Contact closed when overload is detected.
•
Check that the relay works.
9.3.3.2 Load limit function ”LoadX”
•
Contact closed when the load exceeds the limit “X”, where the limit is determined by parameter 4-3-3
•
Check the limit value from the parameter 4-3-3
•
Check that the relay works.
9.3.3.3 Fault- and warning -state supervision ”OK”
•
Contact closed in normal operation
•
Contact blinks when the unit shifts to “warning state”
•
Contact opens when the unit shifts to “fault state
•
Check that the relay works.
9.3.3.4 Fault supervision ”Ready”
•
Contact closed in normal operation
•
Contact opens when the unit shifts to “fault state”
•
Check that the relay works.