Product Manual

TP-6946 3/16 21Section 2 Installation
2.8.1 Controller Input and Output
Connections
The controller provides connections for two
programmable inputs and two programmable outputs.
See Figure 2-8 for the connector location and
Figure 2-9 for the I/O connection specifications.
Each input has a signal and a return connection. The
outputs are C form contacts with ratings of
500 mA @ 120 VAC. See Figure 2-10 for connections.
Use #12--24 AWG wire and tighten the connections to
0.5 Nm (4.4 in. lbs.).
Input 1 and output 1 are factory connected on service
entrance models. Do not disconnect the factory-set
inputs and outputs.
The load shed (forced transfer to OFF) function requires
an external signal (contact closure) to initiate transfer to
the OFF position. Connect the external contact to input
#2 on connector TB1 on the controller.
For additional input and output connections, optional
input/output modules are available. See Section 4.3 for
instructions.
Main Board I/O Specifications
Output contact type Isolated form C (SPDT)
Output contact rating 1amp@30VDC,
500 mA @120 VAC
I/O terminals wire size #12--24 AWG
Figure 2-9 Main Board I/O Specifications
6866
Input 1A
Input 1B
Input 2A
Input 2B
Output 1 NC
Output 1 C
Output 1 NO
Output 2 NC
Output 2 C
Output 2 NO
TB1
NC = normally closed
NO = normally open
C = common
Note: Output 1 is factory connected.
12
6
1
7
Figure 2-10 Input and Output Connections
2.8.2 Harness Connection
Verify that the contactor harness is connected at the
controller base through the controller circuit isolation
switch on the transformer assembly. See Figure 2 -3.
Note: Verify that the power is disconnected before
connecting or disconnecting the contactor
harness.
2.8.3 Controller Ground
Verify that the grounding wire is connected from the
controller’s lower left mounting stud to the enclosure.
This connection provides proper grounding that does
not rely upon the door hinges.
1
1. Ground Connection
GM85844
Figure 2-11 Controller Ground Connection