Instruction Manual

DataView™ LI55 Level Controller Instruction Manual
26 | Page
Interlock Relay Feature
As the name implies, the interlock relay feature reassigns one, or more,
alarm/control relays for use as interlock relay(s). An Interlock contact is
wired to the digital input and triggers the interlock relay. This feature is
enabled by configuring the relay and digital input (see page 70).
In one example, a dry interlock contacts are connected in series to the
F4 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 Connections