7
Danger
Please utilise extreme caution when performing work within the compressor. Wear
appropriate PPE
(Personal Protective Equipment)
, follow
lock out-tag out
procedures, and
ensure all safety procedures
.
Compressor
Trips on “Sec Disable” while
technician on site? – Toggle switch still on
“start” position and E-stop pulled ?
Check connections on E-stop (ESA1
and ESA2) – Connections OK?
No
Do not touch the toggle switch nor the E-stop.
8.09=“enable”? (8.02 must be=“active”)
Yes
Fix connection
No
Problem likely to be linked to: E-Stop / Wiring
or connection issues
No
Yes
Switch the toggle switch to the stop
position
Turn toggle switch to “stop” – Push & pull the
E-stop 10 times – Read 8.09 after each try
8.09 = “Enable” when E-stop pulled
& 8.09 = “Disable” when E-stop pushed ?
(Note : the “sec. disable” will be reset after
the first sequence of push/pull)
Problem may occur only when compressor is
running
Yes
Yes
Disconnect ESA1 & ESA2 so that the E-Stop is
no longer connected to the pins 13 & 14 –
Make contact between these two connectors
8.09 = “Enable” when ESA1 & ESA2 are in
contact
& 8.09 = “Disable” when no contact?
No
E-stop does not work properly – Change E-
Stop and restart the procedure
(with a multimeter, you can check the
resistance between ESA1& ESA2 Must read 0
ohm when the E-stop is pulled and OL ohm
when the E-stop is pushed)
Yes
Remove drive cover and check connections
(especially pins 13 & 14) – Connections loose
or misconnected cables?
No
Tighten the cables and re-conduct procedure -
Problem solved? (8.09 = “Enable” when E-stop
pulled out
& 8.09 = “Disable” when E-stop pulled in)
Yes
Contact IR customer’s service
No
Contact IR customer’s service
No
Problem was due to misconnected cables
Yes
“
SECURE DISABLE” FAULT TREE
Unit trips while running
Power outage is unlikely
More than 3 consecutive “sec.disable” fault in the memory
See Appendix 1 for detailed explanation
on Sec Disable fault message
