R&M Materials Handling VARIABLE SPEED CONTROLS CMXC 022 Service Manual - Manual (Page 12)

R&M Materials Handling, Inc.
4501 Gateway Boulevard
Springfield, Ohio 45502
P.: (937) 328-5100
FAX: (937) 325-5319
12/14 R&M Materials Handling, Inc. reserves the right to alter or amend the above information without notice.
MS2 EP2 EP3 MS4
DI2 S2 S2 S2 S2
DI3 HSP AP HOLD SP2
DI4 S12 S11 AP SP3
DI5 S22 S21 S11/S21 HSP
Description of the control signals:
S1 Drive command forward
AP Acceleration command
S11 Slowdown limit forward
S12 Stop-limit forward
SP2 Speed2
HSP High speed
S2 Drive command reverse
HOLD Hold speed command
S21 Slowdown limit reverse
S22 Stop-limit reverse
SP3 Speed3
3.4 Slowdown speed
S1
S21 S11
EP2
EP3
S2
Slowdown frequency is activated in EP2 and EP3 control modes when the slowdown limit circuit is opened. In EP2 there
are separate inputs for both limit switch, therefore it is possible to drive high speed in the slowdown area in the safe
direction. In EP3 there is only one input and therefore the speed is limited in both directions in the slowdown area. There
are two alternatives for the level of slowdown speed which are selected by switch S6-3 as follows:
S6-3 = 0 Slowdown speed is 20% of the maximum speed (set by switch S1)
S6-3 = 1 Slowdown speed is 35% of the maximum speed (set by switch S1)
3.5 Speed2 and Speed3
In MS4-control mode the lowest speed level is set by switch S2 and the highest level by switch S1. There are two
alternative settings for the speed2 and speed3, which are set as a percentage of the maximum speed by switch S6-3 as
follows:
S6-3 = 0 Speed2 is 20% of maximum speed and speed3 is 40% of maximum
S6-3 = 1 Speed2 is 30% of maximum speed and speed3 is 50% of maximum