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