5. Multiple Sequential Isolation / Single Access:
Application : Machine that requires a sequential action to ensure isolation – Power OFF Earth Switch ON, Guard open.
Operating Sequence
- 5.1 Power ON, Key A trapped Earth Switch OPEN. Access Key B trapped / Guard locked closed.
- 5.2 Power OFF, Key A free / Earth Switch OPEN. Access Keys B trapped / Guard locked closed.
- 5.3 Power OFF, Key A trapped Earth Switch CLOSED, Key B free / guard locked closed.
- 5.4 Power OFF / Key A trapped Earth Switch CLOSED / Guard open, Key B trapped.
RECOMMENDED LOCK TYPES : ILT, ILD / ILH – 100
6. Multiple Isolation/MultipleAccess:
Application : Machine which has a number of power sources and many access points:
Operating Sequence
- 6.1 Power ON, Keys A1, A2, A3 trapped / Access Keys B1, B2,C1,C2, D1,D2 trapped in Key Exchange / Guards locked closed.
- 6.2 Power OFF, Keys A1,A2, A3 free / Access Keys B1, B2,C1,C2, D1,D2 trapped in Key Exchange / Guards locked closed.
- 6.3 Power OFF / Control Keys A1, A2,A3 trapped in Key Exchange, access Keys B1, B2,C1,C2, D1,D2 free / Guards locked closed.
- 6.4 Power OFF / Control Keys A1,A2,A3 trapped in key Exchange, Guards open, Keys B1,B2,C1,C2, D1,D2 trapped.
RECOMMENDED LOCK TYPES :
ILE, ILX – ***, ILD / ILH – 100