ANSI09000884-1-en.vsd
ZMQAPDIS (21)
I3P*
V3P*
BLOCK
LOVBZ
BLKTR
PHSEL
DIRCND
TRIP
TR_A
TR_B
TR_C
PICKUP
PU_A
PU_B
PU_C
PHPUND
ANSI09000884 V1 EN
Figure 85: ZMQAPDIS (21) function block (zone 2 - 5)
ZDRDIR
I3P*
U3P*
STDIRCND
IEC10000007-1-en.vsd
IEC10000007 V1 EN
Figure 86: ZDRDIR (21D) function block
6.1.5  Input and output signals
Table 93: ZMQPDIS (21) Input signals
Name
Type Default Description
I3P GROUP
SIGNAL
- Group signal for current input
V3P GROUP
SIGNAL
- Group signal for voltage input
BLOCK BOOLEAN 0 Block of function
LOVBZ BOOLEAN 0 Blocks all output for LOV (or fuse failure) condition
BLKTR BOOLEAN 0 Blocks all trip outputs
PHSEL INTEGER 0 Faulted phase loop selection enable from phase
selector
DIRCND INTEGER 0 External directional condition
Table 94: ZMQPDIS (21) Output signals
Name
Type Description
TRIP BOOLEAN General Trip, issued from any phase or loop
TR_A BOOLEAN Trip signal from phase A
TR_B BOOLEAN Trip signal from phase B
TR_C BOOLEAN Trip signal from phase C
PICKUP BOOLEAN General Pickup, issued from any phase or loop
Table continues on next page
Section 6 1MRK505222-UUS C
Impedance protection
190
Technical reference manual