Precision-digital PD6200 User Manual download pdf (Page 26)

Model PD6200 Analog Input Rate/Totalizer Instruction Manual

123456

+5 I1 I2 I3 I4 O1

O2 O3

910

O4 G

DI 1-4 DO 1-4

5 VDC GND

Figure 17: Digital I/O Module Connections

Interlock Relay Feature

As the name implies, the interlock relay feature reassigns one, or more,

alarm/control relays for use as interlock relay(s). Interlock contact(s) are

wired to digital input(s) and trigger the interlock relay. This feature is

enabled by configuring the relay, and relative digital input(s) (see page

66). In one example, dry interlock contacts are connected in series to

one digital input which will be used to force on (energize) the assigned

interlock power relay when all interlock contacts are closed (safe). The

interlock relay front panel LED flashes when locked out. The interlock

relay would be wired in-series with the load (N/O contact). See below.

Figure 18. Interlock Connection

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Precision-digital PD6200 User Manual Page 26