3.1.2 Device settings
3.2 Test of the auxiliary contact
3.2.1 Operational status signaling
▶
Set the ZEB overload relay to the rated current of the motor (according
to the name plate or the type approval certificate of the motor).
▶
Set the tripping CLASS of the ZEB overload relay via the device DIP
switch.
▶
Set the Reset DIP switch in position M to activate the manual reset.
▶
Set the Phase DIP switch in position ON to activate the phase lost/
phase imbalance detection.
▶
Check the wiring of the auxiliary contact 95/96, 97/98 to the contactor by
pulling the TRIP-button. This simulates the tripping of the overload relay.
The control circuit to the coil of the contactor has to be interrupted by
this action. The main circuit to the motor has to be interrupted by the
switched off contactor.
▶
After the Test button is released, the overload relay must be reset in the
same way as after a trip.
After switching on of the motor, the overload relay signalizes the operating
state via the integrated staus-LED. The LED signalizes the operating state of
the relay in three following ways:
Table 16: Status-LED
State of the Status-LED
off
flashing (0,5 Hz)
flashing (1 Hz)
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.
ZEB (XTOE, C440) 11/16 MN03402007Z-DE/EN www.eaton.com
Meaning
The relay is off.
There is no motor current.
The motor current is lower than the lowest possible setting
(lowest value on the current setting dial).
The relay is working.
The motor current is lower than 1.15 x I
The relay is working.
The motor current is higher or equal 1.15 x I
3 Installation
3.2 Test of the auxiliary contact
.
r
(i.e. overcurrent).
r
41