Rockwell Automation Publication 750-UM006C-EN-P - March 2022 201
Periodic and Preventive Maintenance Chapter 7
enclosure plate. Cable connectors should be tightened hand-tight and
receptacles should be to the specified torque values listed in the following table.
Solid-state Devices —Solid-state devices require a little more than a periodic
visual inspection. Inspect the printed circuit boards to determine whether they
are properly seated in the edge connectors. Board locking tabs must be in place.
Necessary replacements must be made only at the personal computer board or
plug-in component level. Do not use solvents on printed circuit boards. When
blowers are used, air filters must be cleaned or changed periodically depending
on the specific environmental conditions encountered.
Locking and Interlocking Devices — Check these devices for proper working
condition and capability of performing their intended functions.
Terminal Designation Description Torque Value (lb•in)
L123 Input Power 60 ± 10%
T123 Output Power 60 ± 10%
DRB Dynamic Brake 60 ± 10%
EMB1 400/480V AC Source Mechanical Brake 45 ± 10%
EMB2 24V DC Mechanical Brake 45 ± 10%
CP 24V DC Control Power 45 ± 10%
CPBR 24V DC Brake Power 45 ± 10%
DBRT Brake Resistor Thermostat Temperature 45 ± 10%
SO S0 Safety (S3) 45 ± 10%
S0 S0 Network Safety (S4) 45 ± 10%
S0 S0 Network Safety (S4 with brake) 45 ± 10%
S1 S1 Network Safety (S4) 45 ± 10%
PO P0 Digital Input 45 ± 10%
P1 P1 Digital Input 45 ± 10%
CFBM
Allen-Bradley Servo Bulk Head Hiperface Encoder -
Bulk head adapter
11 ± 10%
Allen-Bradley Servo Bulk Head Hiperface Encoder -
Mounting screws
25 ± 10%
CPBM
Allen-Bradley Servo Motor Power and Brake - Bulk
head adapter
11 ± 10%
Allen-Bradley Servo Motor Power and Brake -
Mounting screws
25 ± 10%
ENCO M23 Incremental Encoder 133 ± 10%
HIPSC M23 Hiperface SC Encoder 133 ± 10%
SSIL M23 SSI Linear Encoder 133 ± 10%
DENCO M23 Dual Incremental Encoder - 0 133 ± 10%
DENC1 M23 Dual Incremental Encoder - 1 133 ± 10%
SSISC M23 SSISC Rotary Encoder 133 ± 10%
ETH1 EtherNet/IP Link 1 20 ± 10%
ETH 2 EtherNet/IP Link 2 20 ± 10%
ATTENTION: Use of other than factory recommended test equipment for
solid-state controls can result in damage to the control or test equipment or
unintended actuation of the controlled equipment.
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