Setting Parameters; Technical Data - ABB REL 501-C1 2.5 Technical Reference Manual

1.6
1.7
134
Dead line detection (DLD)
Table 140: Output signals for the DLD (DLD--) function block
Signal
START
STIL1
STIL2
STIL3
STUL1
STUL2
STUL3
STPH

Setting parameters

Path in local HMI: Settings/Functions/Groupn/DeadLineDet
Table 141: Setting parameters for the dead line detection DLD (DLD--) function
Parameter Range
Operation Off / On
U< 10 - 100
Step: 1
IP< 5 - 100
Step: 1

Technical data

Table 142: DLD - Dead line detection
Function
Automatic check of dead
line condition
Description
Dead line condition detected in all three phases
Current below set value phase L1
Current below set value phase L2
Current below set value phase L3
Voltage below set value phase L1
Voltage below set value phase L2
Voltage below set value phase L3
Dead phase condition detected in at least one phase
Default Unit
Off -
70 % of U1b
20 % of I1b
Operate phase current, IP<
Operate phase voltage, U<
Power system supervision
Description
Operating mode for DLD function
Operating phase voltage (undervoltage
function)
Operating phase current (undercurrent
function)
Setting range Accuracy
± 2.5 % of I
(5-100) % of I1b in steps
of 1%
± 2.5 % of U
(10-100) % of U1b in
steps of 1%
Chapter 7
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