1 power supply unit (psu), 2 control unit (csu) – R&M Materials Handling VARIABLE SPEED CONTROLS ControlMaster Plus Service Manual User Manual
Page 17

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.
1.14.1 Power supply unit (PSU)
Power supply unit (PSU) includes the main circuit components. PSU has connectors for supply cables, motor
cables and braking resistor cables. PSU also includes a D-connector for CSU-connection.
Main supply voltage terminals
L1
Mains L1
L2
Mains L2
L3
Mains L3
PE
Protective earth
DC-bus terminals
B-
DC-bus negative
B+
DC-bus positive / Brake resistor positive
R-
Brake resistor negative
Motor output voltage terminals
U/T1
Motor U
V/T2
Motor V
W/T3
Motor W
1.14.2 Control unit (CSU)
Control unit (CSU) includes a control board with five board slots for option boards and a control keypad for
parameter adjustments. CSU is connected to PSU through a D-connector.
Yellow
Red
Status
YELLOW
RED
GREEN
KEYPAD
A
B
C
D
E
blinking
0.5Hz
blinking
0.5Hz
Everything is OK.
IEC Application Scheduler is running
and Application is running
blinking
0.25Hz
blinking
0.5Hz
IEC Application Scheduler is running
and Application is NOT running
OFF
blinking
0.5Hz
IEC Application Scheduler and
Application are NOT running
Green
Status
ON
PSU ready
OFF
PSU not ready