KEPCO BOP 1000W, Operator'S Manual

Page: 43 / 188

BOP HIPWR 080709
2-5
TABLE 2-8. PARALLEL/SERIAL PROTECT IN PORT PIN ASSIGNMENTS
CONNECTOR PIN SIGNAL NAME FUNCTION
PARALLEL/SERIAL
PROTECT IN PORT
(A2A5J1)
1
SD_A Anode of LED optocoupler which is part of protection circuit for parallel
or series combination. Cathode of LED is connected to PARALLEL/
SERIAL PROTECT OUT PORT (A2A5J2) pin 1 (see Table 2-9). When
activated, the optocoupler shuts down the unit. LEDs from all units of the
parallel or series combination are connected in series.
2
PGOUT_C Collector of optocoupler transistor which is part of protection circuit for
parallel or series combination. Transistor emitter is connected to PAR-
ALLEL/SERIAL PROTECT OUT PORT (A2A5J2) pin 2 (see Table 2-9).
When unit is operating normally, transistor is saturated. Transistors from
all units of the parallel or series combination are connected in series.
3
SD_RETURN Completes return connection for the protection circuit which receives
energy from the master unit.
4 No connection
5 No connection
6 No connection
7 GND Local power ground.
8
ALLOW EXT_ERR Provides energy for the protection circuit (master unit only). Disabled at
power up to prevent shutdown during power up.
TABLE 2-9. PARALLEL/SERIAL PROTECT OUT PORT PIN ASSIGNMENTS
CONNECTOR PIN SIGNAL NAME FUNCTION
PARALLEL/SERIAL
PROTECT OUT
PORT
(A2A5J2)
1
SD_K Cathode of LED optocoupler which is part of protection circuit for parallel
or series combination. (See IN port (A2A5J1) pin 1,Table 2-8.)
2
PGOUT_E Emitter of optocoupler transistor which is part of protection circuit for
parallel or series combination. (See IN port (A2A5J1) pin 2,Table 2-8.)
3
SD_RETURN Relayed connection, provides return for the protection circuit which
receives energy from the master unit.
4 No connection
5 No connection
6 No connection
7 No connection
8 No connection