R&M Materials Handling ELECTRIC CHAIN HOISTS LoadMate Chain Hoist LM 10 Stepless - Manual (Page 35)

LM10 STEPLESS I&M MANUAL/EN/11.30.2010
35/99
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Copyright © (2010) R&M Materials Handling, Inc. All rights reserved.
7.5.5.3 AU/PO-control
Figure 14. AU/PO-Control
S1
S2
c_coms6a
o
A. Reference
o
B. Speed
NOTE: AU control may be used with control device with an output in the range of
0 V – 10 V (for example radio or PLC).
NOTE: PO control may be used with a controller with potentiometer.
The operation is as follows :
Driving command S1 or S2 is given separately and means “drive minimum speed”
The speed linearly follows the analog input signal.
7.5.5.4 Stop-limit operation
Normally inputs (S12 and S22) are "high" (limit switch closed, voltage present in the input). When either of
these signals goes “down” (no voltage in the input), the motion is stopped by switching the motor current off
immediately and by opening the relay contact ROD1 (mechanical brake closes).
Restart may occur only after one second. Restart is only allowed to the direction opposite to the stop-limit
switch circuit being off. If both of these inputs are off restart is not permitted. Restart may be initiated only by
a run command changing from off to on (= before restart both run commands must be off after the one-
second time has passed).
7.5.6 EMC
The abbreviated "EMC" stands for the Electromagnetic Compatibility. According to the European
EMC directive "the apparatus shall be so constructed that:
The electromagnetic disturbance it generates does not exceed a level allowing other apparatus to
operate as intended
The apparatus has an adequate level of intrinsic immunity of electromagnetic disturbance to enable it to
operate as intended."