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Curve too low
3. Function prevented with I>4In
1.4. sensor
2.3. Exclude not necessary
3 Trip times higher than expected Threshold too high
2. Set int.2. Beforeconsulting thefollowing table, checkforanyerror messagesappearing forsomeseconds thedisplay. FN, see 14. Curve too high
3.8
7 The display not back-lit Current and/or voltages below the
limit for lighting the display
FN
8 Reading incorrect Current below the minimum threshold
that can displayed
FN
9 Reading and power
factor incorrect
1) Connection error between VT
and PR120/V
2) Voltage parameter setting error
1) Check connections between and
PR120
2) Set correct parameters
10 Local Bus" message
on display
No communication between PR123/P
and PR021/K
1. FN
2. Incorrect Neutral Selection
1. Set locally
2. Exclude not necessary
4. Check bus connection
3.2.
Note:
1. indicates the normal operation ofthe PR123/P. The SdZ inserted
1.6. 2
Page No. Curve I2t inserted
4.6. FN
6 Display off Vaux missing and the current and/or
voltage are below the minimum value. Correct threshold
2. Temperature out range
1. Information lost due power
failure
FN see 13.
2. Exclude not necessary
4.5
14 display the opening data Vaux missing,the buffer capacitor
is discharged
FN, see 14. the casewhere thesuggestions proposed not lead asolution ofthe problem, pleasecontacttheABBSACEassistance service.3
20 LED lighting see 13. Vaux PR120/V PR030/B
not installed
1.6. Correct threshold
2.1
2. Correct curve
3. ext.
2. Incorrect Neutral Selection
5.Error message escription
1A Invalid date Date has not been set
1A Parameters revised Programming session concluded correctly
1A Cancelled Programming session cancelled
1A Failed Programming session rejected
14. Thermal memory enabled
4.9.7 tin 123/P unit
The following table lists series typical service conditions, help you understand and solve hypothetical faults malfunctions.N°.1
15 The password not requested The password has been disabled FN, re-enter the password with value
other than 0000
16 Impossible change any parameter PR123/P alarm situation FN
17 Temp.9.4.4.
N itu tio ssib tio s
1 The trip test cannot run The busbar current 0
2. sensor" or
" Start-up" message
Possible failure inside relay Contact ABB Sace
18 Invalid date First installation
2. Open CB
3. Correct Neutral Selection
4 Rapid trip, with Off Iinst tripped with short-circuit with high I
5 High earth but trip happens Incorrect selection the sensor
2.2. not present, disable PR021/K,
see 14.5
2. Power the relay
Model 2234 Apparatus Scale
L 2778
Doc.5. Check the messages the display
2 Trip times lower than expected Threshold too low
2. Correct Neutral Selection
5. not open
3.2.1
19 Untimely trip see 13. Correct curve
3.1
21 The language cannot changed Relay remotely set
2. Check PR021/K
11 Message ""
instead expected data
Function disabled data out of
range
FN
12 The expected trip does not occur Trip function disabled enable trip necessary
13 activation the Unbalance
U protection
Values out range FN, see 14.
111/158
.
3.5. FN, see 14. The not connected
1
