ABB REG670 - Page 801

TRINL1
PSL1
TRINL2
PSL2
TRINL3
PSL3
- loop
-
loop
TRIN
L1TRIP
OR
OR
OR
AND
AND
AND
OR
OR
OR
AND
OR
AND
OR
AND
AND
t
tWaitForPHS
L2TRIP
L3TRIP
IEC10000056-3-en.vsd
1 PTREF
1 PTRZ
IEC10000056 V3 EN
Figure 369: Phase segregated front logic
1MRK502052-UEN B Section 15
Logic
795
Technical manual