Table 80: CCRPLD Output signals
Name Type Description
TRIP BOOLEAN Trip signal to CB
START BOOLEAN Trip condition TRUE, waiting for time delay
6.9.5 Settings
Table 81: CCRPLD Group settings (basic)
Name Values (Range) Unit Step Default Description
Operation Off
On
- - Off Operation Off / On
tTrip 0.000 - 60.000 s 0.001 0.300 Time delay between trip condition and trip
signal
ContSel Off
PD signal from CB
- - Off Contact function selection
CurrSel Off
CB oper monitor
Continuous monitor
-
- Off Current function selection
CurrUnsymLevel 0 - 100 % 1 80 Unsym magn of lowest phase current
compared to the highest.
CurrRelLevel 0 - 100 %IB 1 10 Current magnitude for release of the
function in % of IBase
Table 82: CCRPLD Non group settings (basic)
Name
Values (Range) Unit Step Default Description
GlobalBaseSel 1 - 6 - 1 1 Selection of one of the Global Base Value
groups
6.9.6 Monitored data
Table 83: CCRPLD Monitored data
Name
Type Values (Range) Unit Description
IMin REAL - A Lowest phase current
IMax REAL - A Highest phase current
6.9.7 Operation principle
The detection of pole discordance can be made in two different ways. If the contact
based function is used an external logic can be made by connecting the auxiliary
contacts of the circuit breaker so that a pole discordance is indicated, see figure 60.
Section 6 1MRK 511 287-UEN A
Current protection
138
Technical manual