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Safety Isolation System

Introduction Specifications Sequence of Operation Communication Product Selection Introduction
Optional Expansion Module Remote Lockout Station Verification Module Multiplexer/Permissive Module System Selection Process
Sequence of Operation

After using the normal stopping method of the machine or process, the machine operator turns a Remote Lockout Station (RLS) handle from the ON to the OFF position.

The RLS signals the:

1. Isolation contactors (1IC and 2IC) to drop out, isolating the supply voltage from the loads (see Power Circuit below).

2. The grounding contactor (GC) is then energized, connecting the load to ground (see Power Circuit). The grounding contactor and the isolation contactors are both electrically and mechanically interlocked.

3. The System Isolated light will then illuminate on the RLS to indicate the system is isolated.

4. The person performing the LOTO then applies a lock to the RLS, locking it in the OFF position. The equipment is now locked out.


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Power Circuit