33
Field Wiring
7.7
Polarity Reversal and City Tie Module (PR-300) Wiring
Wire PR-300 Polarity Reversal and City Tie Module (if used) as shown in
below. See
17.0 Appendix E: Specifications on page 101
for module specifications. Power Limited cable
type FPL, FPLR or FPLP must be used.
For USA installation, the installer must use
Atlantic Scientific (Tel: 407-725-8000), Model
#24544 Protective Device
, or similar
UL-Listed QVRG secondary protector
, as shown.
For use in Canada, the Protective Device is not required but still recommended.
Figure 21 Polarity reversal and city tie module terminal connection
1
1
2
2
S
S
CITY TIE LOCAL ENERGY
RATED - 24VDC FILTERED
TRIP COIL - 14 Ohms, 250mA,
5mV RIPPLE
POLARITY REVERSAL ALARM
24VDC OPEN
12VDC AT 3.5mA
8mA MAX. SHORT
POLARITY REVERSAL SUPV.
24VDC OPEN
12VDC AT 3.5mA
8mA MAX. SHORT
PROTECTOR
1
1
2
2
S
S
1
1
2
2
S
S
PROCTECTOR
1
1
2
2
S
S
USE A SHORTING WIRE
WHEN THE CITY TIE IS
NOT USED
+
+
+
-
-
-
+
+
+
-
-
-
CONFIRMS TO
NEMA STANDARD
SB3-1969
INTENDED FOR
CONNECTION TO POLARITY
REVERSAL CIRCUIT OF A REMOTE
STATION RECEIVING UNIT HAVING
COMPATIBLE RATINGS
DIN RAIL CONNECTION
TO EARTH GROUND
DIN RAIL CONNECTION
TO EARTH GROUND
POWER LIMITED
POWER LIMITED
POWER LIMITED
PR-300
PR
O
CT
EC
TE
D
PR
O
CT
EC
TE
D
UNPR
O
C
TE
CT
ED
UN
PR
O
CT
EC
TE
D
POWER LIMITED CABLE TYPE
FPL, FPLR or FPLP MUST BE
USED FROM PR-300 TO
PROTECTORS.
Содержание FR-320 Series
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