Fuji Electric FRENIC-VG Series - Page 207

6.6 High-Speed Serial Communication-Capable Terminal Block
6-131
Chap. 6
CONTROL OPTIONS
MTCL
1X1
43S
INV1 independent
operation
RU
N1X
MC
H1X
INV1
independent
operation
INV2
independent
operation
43S
52-1
BX1X
MTCL
1X2
PGCL
1X
Preparation
to Run
“ON”
52-1
PGC
L1X
MCH
1X
MCH
1X
MTC
L1X2
M12X
ALM
30AX
30C
30A
<INV1>
MTC
L1X1
ALM
30C
30A
<INV2>
MTC
L2X1
MTCL
2X2
30AX
MTCL
1X2
RDY
Y5A
Y5C
<INV1>
RDYX
MTCL
2X1
RD
Y
Y5A
Y5C
<INV2>
MTC
L1X1
MTCL
2X1
43S
INV2 independent
operation
RU
N2X
MC
H2X
52-2
BX2X
MTCL
2X2
PGCL
2X
52-2
PGCL
2X
MCH
2X
MCH
2X
MTCL
2X2
M22X
MTCL
1X2
30AX
MTCL
2X2
INV1 independent
operation (reduced unit
operation)
INV1
connect MC on
secondary side
Coast to a stop
(Normal-ON)
PG.Aｌarm
Cancel
Selection of second motor
constant (unit reduction
parameter selected)
Coast to a stop
(Normal-ON)
PG.Aｌarm
Cancel
Master INV Slave INV
Alarm relay
output
Inverter ready to run
Run forward
command
Forward
command
RDYX
PGC
L2X
FDX
PGC
L1X
Reverse
command
RDYX
PGCL
2X
RDX
PGCL
1X
Run reverse
command
30AX 30AX
****
: Shows external interface signal
Reset
RSTX
Reset
alarm
MTC
L2X1
MTCL
1X1
Preparation
to Run
“ON”
INV2 independent
operation (reduced unit
operation)
INV2
connect MC on
secondary side
Selection of second motor
constant (unit reduction
parameter selected)
Figure 6.6.7 Basic Configuration for Direct Parallel Connection Control System Using Two Inverters
<Supplementary Explanation for the Connection Diagram>
Basic items
1) For safety, when alarm is activated (30X actuated) input free run command [BX] to the two inverter
units.
In the connection diagram shown, the free run command is configured to normally on (ordinarily
closed, open signifies free run command). This input should be constructed by hardware circuit for
safety.
2) Configure the two inverters such that after operation preparation is complete [RDY], FWD and REV
can be turned ON. The diagram shows the case where the operation preparation complete function is
allocated to relay output.
3) The alarm of slave inverters can be released by the reset command [RST] of the master inverter.
4) For installations into facilities which restart after instantaneous power failures, use the running restart
function which searches the direction and speed of free running rotation and picks up smoothly to
reengage drive.