ABB SACE Emax 2 Series Operating Instructions Manual page 36
Low voltage air circuit-breaker
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HELP
Some LED signals indicate connection errors or operational errors that require corrective or maintenance
operations. The following are the suggestions for checking with reference to the preceding LED table:
HELP
Operation
note
A
Contact ABB and give details about the state of the LEDs on the unit.
Check the connections between trip unit and accessories (Rating Plug, trip coil,
B
sensors, etc).
C
Normal operation/signalling provided by the trip unit.
Error in setting of the dip-switches. Check and correct the following conditions:
• I1 ≥ I2 or I2 ≥ I3.
• Iu < (2 * In * I1) in the case where InN = 200 %.
• I4 < 0.3 In (con In = 100 A), 0.25 In (con In = 400 A) or 0.2 In (for all other sizes), in the
D
absence of auxiliary power supply.
• t2 > 0.4s (in the case of UL circuit-breaker)
• t4 > 0.4s (in the case of UL circuit-breaker)
• I4 > 1200 A (in case of UL circuit-breaker)
E
Install by pressing and holding the itest pushbutton for at least 5s.
F
Connect via Ekip Connect in order to set the Local Bus or to confirm maintenance.
G
Replace the battery.
ABB | SACE Emax 2
Ekip Dip
5 - List of alarms and signals
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