L2275
Emax UL
51/132
Doc. N°
Mod.
RH0109002
Apparatus
Scale
Page N°
N°
Situation
Possible causes
Suggestions
10
“No Int Bus Comm” Message
There is no communication between
1. If not present, exclude PR020/K
PR112 and PR020/K
2. Check bus connection
3. Check PR020/K
11
Display indicates “….” or “——” ,
Function excluded or data out of range
FN, see 13.9
instead of the data expected
12
The expected trip does not occur
Trip function excluded
FN enable trip if necessary
13
No activation of the Unbalance
Values of I out of range
FN, see 13.7.5
U protection
14
Anomalous behavior of Load
The MT of L is inserted.
FN, exclude the MT of L
control K protection
15
No display of the of opening data
Vaux missing
FN, see 13.10.2
16
The password is not requested
The password has been disabled
FN, re-enter the password with a
value other than 0000.
17
It is not possible to change
PR112 in alarm situation
FN
any parameter
13.17
Warning and error messages
All the messages which can be shown on the display relating to incorrect configurations, generic alarms or deriving from the protection functions
and linked to useful information are described below.
INCORRECT CONFIGURATIONS
MESSAGE
DESCRIPTION
WRONG CS FOR THIS CB A CS size which cannot be installed on the power circuit breaker has been selected (e.g. E1 with 5000A)
ERROR I2 <= I1
The trip threshold of function L is higher than threshold of function S
ERROR I3 <= I2
The trip threshold of function S is higher than threshold of function I
ERROR: S ZONE SEL.
Zone selectivity for function G has been activated but zone selectivity is already active for function S.
ERROR: G ZONE SEL.
Zone selectivity for function S has been activated but zone selectivity is already active for function G.
ERROR: V_AUX OFF
The auxiliary power supply is not present - function not available.
V_AUX OFF: Comm. OFF
The communication bus is not operating because the auxiliary voltage is missing.
NO Int. Bus Comm.
The presence of the PR020/K unit is set, but there is no communication on the internal bus.
NOT available
The function required is not available
V_AUX Off: S Sel. Off
The unit is configured to operate with zone selectivity S but the auxiliary power supply has been removed.
V_AUX Off: G Sel. Off
The unit is configured to operate with zone selectivity G but the auxiliary power supply has been removed.
GENERAL ALARMS
MESSAGE
DESCRIPTION
CONTACTS WEAR >80% The wear on the power circuit breaker electrical contacts has reached 80%
CONTACTS WEAR 100% The wear on the power circuit breaker electrical contacts has reached 100%
HARMONIC DISTORSION The current circulating in the power circuit breaker is distorted (peak factor >2.1).