67 / 189
Immingham Storage Co Ltd – Immingham East Terminal - No4 Switchroom Tank Overfill Safety Instrument System
Logic Panel Factory Acceptance Test Procedure
P & I Design Ltd
DOCUMENT NO: SI483005_RPT
2 Reed Street, Thornaby, UK, TS17 7AF
ISSUE: A DATE: 05.03.13
Tel: + 44 (0)1642 617444
PAGE 12 OF 19
Fax: + 44 (0)1642 616447
www.pidesign.co.uk4.2.4 VALVE FEEDBACK STATUS
Equipment Required
Multi-meter, hand tools, links, yellow highlighter, red pen.
Purpose of Test
To verify the functionality of the limit switch feedback logic.
To verify the functionality of the limit switch feedback BPCS interface.
To verify correct lamp status and lamp test action.
To verify the functionality of a fuse failure.
To verify the functionality of open circuit failure.
Method Of Test
4.2.4.1
Simulate a volt free input to each limit switch relay in the system.
Incoming terminals linked relay energised, incoming terminals open circuit relay
de-energised.
4.2.4.2
Confirm BPCS status on outgoing terminals, outgoing terminals to
BPCS closed circuit whilst relay energised, open circuit whilst relay de-
energised.
4.2.4.3
Remove and replace associated fuse for each limit switch, confirm relay
de-energised whilst removed.
4.2.4.4
Confirm limit switch status lamp illuminated whilst relay energised,
extinguished whilst relay de-energised. confirm limit switch status lamp
illuminates whist lamp test pushbutton depressed when relay de-energised.
Result
1.
ZSO56101 Relay R299.
2.
ZSC56101 Relay R304.
3.
ZSO56401 Relay R379.
4.
ZSC56401 Relay R384.
5.
ZSO56801 Relay R459.
6.
ZSC56801 Relay R464.
Actions/Comments
Sign
Date
Tested by