Rockwell Automation Publication 2094-UM002G-EN-P - August 2016 73
Connector Data and Feature Descriptions Chapter 4
Power and Relay
Specifications
This section provides a description of the Bulletin 2094 power module brake
relay (BC), input power (IPD), motor power (MP), and control power (CPD)
connectors.
Motor/Resistive Brake Relay
The brake option is a spring-set holding brake that releases when voltage is
applied to the brake coil in the motor. The customer-supplied 24V power
supply drives the brake output through a solid-state relay. The solid-state brake
driver circuit provides the following:
• Brake current-overload protection
• Brake over-voltage protection
Two connections are required for the (customer-supplied) motor/resistive
brake input power (BC-3 and BC-4) and two connections each for the motor
and resistive brake output, as shown in Figure 35
. Wiring is consistent with all
series releases. Connections are rated for +24V and current as shown in
Tabl e 32
.
Table 32 - Brake Relay Output Specifications
Figure 35 - Brake Relay Circuit
(1) Noise suppression device.
Attribute Description IAM/AM Power Module Value, Max
On-state current
(1)
Current flow when the relay
is closed
2094-BC01-Mxx-M, 2094-BC02-M02-M,
2094-BMP5-M, 2094-BM01-M, 2094-BM02-M
3.0 A
2094-BC04-M03-M, 2094-BC07-M05-M,
2094-BM03-M, 2094-BM05-M
On-state resistance Contact resistance when the relay is closed 1 Ω
Off-state voltage Voltage across the contacts when the relay is open 30V
(1) For motors requiring more than the maximum current specified, a relay must be added.
24V PWR (BC-3)
FQB22P10
MBRK+ (BC-5)
MBRK– (BC-6)
(1)
DBRK+ (BC-1)
DBRK– (BC-2)
24V COM (BC-4)
24V PWR (BC-3)
FQB22P10
(1)
24V COM (BC-4)
Resistive Brake Module Circuitry
Bulletin 2094
IAM/AM Power Module
Motor Brake Circuitry
Bulletin 2094
IAM/AM Power Module
Control
Board
Control
Board
IMPORTANT Motor parking-brake switching frequency must not exceed
10 cycles/min.
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