Poznámky redaktora
n°. Exclude not necessary
3 Trip times higher than expected Threshold too high
2. Check the messages the display
2 Trip times lower than expected Threshold too low
2.4.2. sensor" or
" Start-up" message
Possible failure inside relay Contact ABB Sace
18 Invalid date 1. FN, see 13.5. FN
6 Display off Vaux missing and the current and/or
voltages are below the minimum value.First installation
2.7 tin 122/P unit
The following table lists series typical service conditions, help you understand and solve hypothetical faults malfunctions.1
15 The password not requested The password has been disabled FN, re-enter the password with value
other than 0000.3
20 Led lighting See 13. FN
2.5
14 display
of the opening data
Vaux missing, the buffer
capacitor discharged
FN, see 13.8
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. Correct threshold
2.9. FNindicates the normal operation ofthe PR122/P. Curve I2t inserted
4.4. Local setting
2. Curve too low
3. The not connected
3.1
19 Untimely trip See 13.5. Exclude not necessary
4. Incorrect Neutral Selection
5.
74/158
.1
21 The language cannot changed The relay remotely set
2. Function prevented with I>4In
1. Correct threshold
2. open
1.2. 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. Thermal memory enabled
4. Temperature out range
1. ext.1
2. Correct curve
3. Curve too high
3. not open
3.6. 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. Set int. Power the relay
Model 2234 Apparatus Scale
L 2778
Doc. Check bus connection
3. Correct curve
3.
Note:
1. Exclude not necessary
4.6.
3. Incorrect Neutral Selection
1.
2.9.3.
2.2.
2.
N itu tio ssib cau tio s
1 The trip test cannot run The busbar current 0. Inthecasewhere the suggestions proposed not lead toasolution ofthe problem, please contacttheABBSACEassistanceservice.5
2. Beforeconsulting the following table, checkforanyerror messagesappearingforsomeseconds thedisplay. 2
Page No. not present, disable PR021/K,
see 13. FN, see 13. Vaux PR120/V PR030/V
not installed
1.
16 Impossible change any
param eter
PR122/P alarm situation FN
17 Temp. Information lost due power
failure
FN see 13.2.6. The SdZ inserted
1.4. Open CB
3. sensor
2. Correct neutral selection
5.13
