Proof Test - Eaton ZEB XTOE Handbuch

10/13 MN03402007Z-DE/EN

Proof test

The ZEB indicates its tripped state with the status indication
window on the front. A tripped relay will be indicated with
an orange flag within the status indication window.
The overload relay shall undergo a proof test once in
12 months, if the device is used to protect motors in a poten-
tial explosive atmosphere. The proof test shall not be done
in an application where a motor in a potential explosive
atmosphere is protected by the device.
Uninstall the device out of the application.
X
Ensure that the Phase DIP switch is in position ON.
X
Drive an AC current through two of the three main phases,
X
which is higher than the lowest setting mark of the over-
load relay. This could be done by an adjustable current
source.
The overload relay must show the following reactions:
• After driving the AC current through the device, the status
LED must flash with 1 Hz (50:50).
• The overload relay must trip after 10 seconds (±2 %).
After the tripping:
• The auxiliary contact 95/96 is closed, the auxiliary contact
97/98 is open.
• The status window of the overload relay shows an orange
flag.
• The status LED of the overload relay is OFF.
Press the Reset button of the overload relay.
X
The orange flag should disappear.
Are all reactions of the overload relay correct, is suitable for
further use and can be installed again into the application.
Proof test
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