ABB REG670 - Page 254

TZx
t
tPPZx
t
tPEZx
BLOCK
PPZx
PEZx
TimerLinksZx
LoopLink (tPP-tPE)
LoopLink & ZoneLink
No Links
LNKZ1
FALSE (0)
TimerLinksZx =
LoopLink & ZoneLink
LNKZRV
LNKZ2
LNKZx
OR
LNKZ3
LNKZ4
LNKZ5
ZoneLinkStart
STPHS Phase Selection
1st starting zone
VTSZ
BLKZx
BLKTRZx
OR
OR
OR
OR
OR
AND
AND
OR
AND
AND
AND
TimerModeZx =
Enable Ph-Ph,
Ph-E
AND
AND
IEC12000139-3-en.vsdx
IEC12000139 V3 EN
Figure 102: Logic for linking of timers
Section 7 1MRK502052-UEN B
Impedance protection
248
Technical manual