Poznámky redaktora
Exclude not necessary
4.1
19 Untimely trip See 13. Beforeconsulting the following table, checkforanyerror messagesappearingforsomeseconds thedisplay. Incorrect Neutral Selection
5. FN, see 13.2. Vaux PR120/V PR030/V
not installed
1. Curve too high
3.1
15 The password not requested The password has been disabled FN, re-enter the password with value
other than 0000. The not connected
3.
N itu tio ssib cau tio s
1 The trip test cannot run The busbar current 0. Correct threshold
2.5. Power the relay
Model 2234 Apparatus Scale
L 2778
Doc. Exclude not necessary
4. Open CB
3. FN, see 13.7 tin 122/P unit
The following table lists series typical service conditions, help you understand and solve hypothetical faults malfunctions. FNindicates the normal operation ofthe PR122/P. Check PR021/K
11 Message ""
instead expected data
Function disabled data
out 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 13. Temperature out range
1. Information lost due power
failure
FN see 13. Correct curve
3.
2. 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.
3. 2
Page No. not present, disable PR021/K,
see 13.1
2.13.
16 Impossible change any
param eter
PR122/P alarm situation FN
17 Temp. Inthecasewhere the suggestions proposed not lead toasolution ofthe problem, please contacttheABBSACEassistanceservice. ext. Thermal memory enabled
4. Set int. FN
6 Display off Vaux missing and the current and/or
voltages are below the minimum value. Curve I2t inserted
4. The SdZ inserted
1.4.2.5. Check the messages the display
2 Trip times lower than expected Threshold too low
2.6.2. sensor
2. open
1. Correct threshold
2. FN
2.4. Function prevented with I>4In
1.5
2. Correct neutral selection
5. not open
3.
2.6. Incorrect Neutral Selection
1.9.n°. Correct curve
3.4.First installation
2. Exclude not necessary
3 Trip times higher than expected Threshold too high
2.
74/158
.6.3
20 Led lighting See 13. Check bus connection
3.3.
2.9. sensor" or
" Start-up" message
Possible failure inside relay Contact ABB Sace
18 Invalid date 1.
Note:
1. Curve too low
3. Local setting
2.1
21 The language cannot changed The relay remotely set
2.8
7 The display not back-lit Current and/or volatges 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 and
PR120/V
2) parameter settings error
1) Check connections between and
PR120/V
2) Set the correct parameters
10 Local Bus" message
on display
No communication between PR122/P
and PR021/K
1.5
14 display
of the opening data
Vaux missing, the buffer
capacitor discharged
FN, see 13
