Mechanical Door Interlock Operating Instruction (Factory Supplied Option); Normal Operating Conditions (Interlock Armed); Defeating The Interlock For Service Operations; Coils Support Maintenance - Allen-Bradley 140G-R Installation Instructions Manual

4.5

Mechanical Door Interlock operating instruction (factory supplied option)

4.5.1

Normal operating conditions (interlock armed)

• Panel door can be opened with circuit-breaker open only
• If panel door is open it is not possible to close the circuit-breaker
OPEN
APERTO
AUS-STELLUNG
OUVERT
ABIERTO
Fig. 9A
4.5.2

Defeating the interlock for service operations

!
WARNING: Defeating the interlock for service operations must be done only by trained qualifi ed personnel. A
safety indicator shows when the interlock is defeated.
!
WARNING: Defeating of the interlock for service operations must be done only with the panel door closed.
a) With panel door closed, insert a pin (dia. 4mm. max.) in the panel door hole and press until it stops (see fi g.9B).
Push
Fig. 9B
b) Open the door for half an inch keeping the pin pressed; then remove the pin and complete the door opening. The circuit-breaker remains
close and the interlock is defeated (see fi g.9C).
Keep
Push ing
Fig. 9C
!
WARNING: Upon release of door, an indicator on the Circuit breaker interlock will display
a "Dangerous Condition" symbol.
!
WARNING:
- Panel door can be opened with circuit-breaker closed.
- If panel door is open it is possible to open and re-close the circuit-breaker
c) Interlock is automatically re-armed when panel door is re-closed.
4.5.3

Coils support maintenance

If coils support should be removed or reassembled, see 8.3.6
DIR 1000682R0002 Version 03
Pull
(7)
Fig. 9D