Rockwell Automation 1746-HSRV SLC Servo Control Module User Manual - Manual (Page 26)

Publication 1746-6.1.2 - July 2000
Selecting Power Supplies, Encoders, and Drives 2-3
Use the table below to find the power supplies Allen-Bradley recommends
for the backplane:
Selecting a User-Side
Power Supply You must provide a power supply that meets your system
requirements. The following devices require user-side power:
•
SLC Servo Module
•
Encoders
•
I/O modules
•
Estop circuitry
•
Fast inputs and outputs
You must select a power supply that meets the specifications of a NEC
class 2 power supply. The power supply must have +5V, ±15V
capacity, and +24V capacity for fast I/O and Estop circuitry.
Before you select a power supply, calculate the system’s user-side
current requirements.
Power Supply Operating
Voltage
Requirements Output Capacity
5V DC 24V DC
1746-P1 85-130V AC or
170-265V AC 2A .46A
1746-P2 85-130V AC or
170-265V AC 5A .96A
1746-P3 19.2-28.8 DC 3.6A .87A
1746-P4 85-132V AC or
170-265V AC 10.0A 2.88A
IMPORTANT
We recommend that you do not use the +24V
included with the 1746-P1, P2, P3, or P4 to power
your Estop or fast I/O.
IMPORTANT
The user-side power must be present for the SLC
processor to communicate with the SLC Servo
Module.