2-24 888-2406-002
WARNING: Disconnect primary power prior to servicing.
Installation & Initial Turn-On
2.7.1 Remote/Extended Control and Status
Connections
Input control lines are standard ground switching inputs. The inputs can be operated
by relay contact or transistor switching. See Figure 2-12. Grounds are provided on
TB1 for use as common.
Figure 2-12 Ground Switching for Remote Control
The status output lines on TB1 are transistor type - open collector. Figure 2-13(A)
illustrates how to interface TB1 outputs with TTL logic circuits. Figure 2-13(B)
illustrates how to interface TB1 with an external relay. A series resistor and LED
can also be used for extended status indications. Maximum external supply voltage
should not exceed +28Vdc.
Figure 2-13 TTL Logic and Relay Status Outputs
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