Motortronics
Page 20
4.3 Control Connections
Control wire should be run in a separate conduit from power lines (twisted, shielded cable should be adequate).
Whenever possible, conduits containing control and power conductors should cross at right angles to each
other. Control connections are made to terminal blocks mounted on the printed circuit boards inside the unit
case. TB1 is on the Logic Board (see page 11) with the terminals for Starter Monitor (Brake Command) and Brake
Disable. TB2 is located on the Power Board, and contains terminals for the Interlock Contacts and Mechanical
Brake Relay.
WARNING!
The motor starter must never be operated manually when the brake unit is connected. Blown fuses and/or
damage to the unit may result.
4.3.1
Starter Monitor Input
Provides a brake command signal from the motor starter (refer to section 2.1.3). Connect either the normally
open, or normally closed (user preference) dry auxiliary contact on the motor starter to TB1, terminals 1 and 2 on
the logic board. To utilize a normally closed contact select Jumper X1 (factory default). For normally open con-
tact, move the Jumper to X2. For reversing starters, use 2 N.O. contacts in parallel or 2 N.C. contacts (1 from
each contactor) in series to this input. Circuit voltage potential: 15VDC maximum.
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