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6. Function prevented with I>4In
1.2.6. indicates the normal operation ofthe PR123/P. Correct threshold
2. the casewhere thesuggestions proposed not lead asolution ofthe problem, pleasecontacttheABBSACEassistance service. Beforeconsulting thefollowing table, checkforanyerror messagesappearing forsomeseconds thedisplay.5
14 display the opening data Vaux missing,the buffer capacitor
is discharged
FN, see 14. ext. not open
3. 2
Page No. Information lost due power
failure
FN see 13.4. Exclude not necessary
3 Trip times higher than expected Threshold too high
2.
Note:
1. Curve too high
3.2.2. Incorrect Neutral Selection
5.
3. FN
6 Display off Vaux missing and the current and/or
voltage are below the minimum value. sensor
2.
111/158
. Vaux PR120/V PR030/B
not installed
1.
2. Thermal memory enabled
4. Exclude not necessary
4. Open CB
3.
2.1
21 The language cannot changed Relay remotely set
2. Curve I2t inserted
4. FN
2. Check the messages the display
2 Trip times lower than expected Threshold too low
2.4. Set int. Check bus connection
3. Correct curve
3. Curve too low
3. FN, see 14.5.1
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.2.5
2.5.9. The SdZ inserted
1. FN, see 14. sensor" or
" Start-up" message
Possible failure inside relay Contact ABB Sace
18 Invalid date First installation
2.N°.6.7 tin 123/P unit
The following table lists series typical service conditions, help you understand and solve hypothetical faults malfunctions. Correct Neutral Selection
5.9. The not connected
1. 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. Exclude not necessary
4. not present, disable PR021/K,
see 14.3
20 LED lighting see 13. Temperature out range
1.
N itu tio ssib tio s
1 The trip test cannot run The busbar current 0
2. Correct threshold
2.8
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. Correct curve
3.1
19 Untimely trip see 13. Set locally
2. Power the relay
Model 2234 Apparatus Scale
L 2778
Doc. Incorrect Neutral Selection
1. 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
2.1
2.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
14.3.4
