A-T Controls Triac TMC-4 - Terminals


TMC-4 Control Card
for Electric Actuators
Installation & Maintenance Manual
6 04/06/22
www.atcontrols.com IOM08139 REVISION 04
2.1. Terminals
(P1)
Power / Motor
Terminals
Function
1 Heater L/+
Supply power output for heater.
Internally connected to Supply L/+ terminal.
2 Supply L/+ Supply Power Line or (+)
3 Supply N/- Supply Power Neutral or (-)
4
External
Brake
Output for spring return electric actuator brakes.
Switches supply power when motor outputs are
energized.
AC version: Switch off when motor on.
DC version: Switch on when motor on.
5 Motor CW
AC version: Energize clockwise motor winding.
DC version: Switch (+) supply voltage for
clockwise operation.
6 Motor CCW
AC version: Energize counterclockwise motor
winding.
DC version: Switch (+) supply voltage for
counterclockwise operation.
7 Motor N
Internally connected to Supply N/- terminal. Can
be used for second heater connection.
AC version: Motor neutral
DC version: No motor functionality
(P2)
Signal / Comm
Terminals
Function
1 +24V Out Auxiliary 24VDC output.
2
I/O 1 (A1)
Signal In
Command signal input.
3 Signal GND Command signal reference.
4
I/O 2 (A2)
Signal Out
Feedback signal output.
5 Signal GND Feedback signal reference.
6 GND / 0V 0V reference for +24V output.
7 Earth
Connected to enclosure through
TMC4 mounting bracket.