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Allen-Bradley PLCs
Connecting Your 1394 SERCOS Interface System
Connecting Thermal and Brake Leads to Axis Modules
Axis modules provide terminating points for the motor power, thermal
sensor, and brake (as shown in the figure below). Axis module wiring
is identical for all available axis module ratings.
Figure 2.12
Locating TB1, TB2, and Input Power Terminals
Noise filters on the motor thermal sensor and brake
IMPORTANT
connectors (TB1 and TB2) add capacitance (1.0 µ F)
from each leg of the thermal switch and motor brake
leads to ground. This should be considered when
selecting ground fault circuits.
Connect the motor thermal sensor and brake lead to the Axis Module
at TB1 and TB2. Each axis module comes with a brake and thermal
connector kit. Refer to Appendix B for interconnect information.
Terminal:
Description:
TB1-1, 2
Thermal Sensor Input from Motor Cable
TB1-3, 4
Brake 24V DC from Motor Cable
TB2-1, 2
Brake 24V DC from Fault System or system module
TB2-3, 4
Thermal Sensor Output to Fault System or system module
2-17
Publication 1394-5.20 — July 2001
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