Test Run; An Example Of A General Connection Diagram - Hitachi J300 Series Instruction Manual

6.2

Test Run

Check the following before and during the test run.
Otherwise, there is a danger of machine breakage.
• Was the direction of the motor correct?
• Was the inverter tripped during acceleration or deceleration?
• Were the SPEED (rpm) and frequency meter correct?
• Were there any abnormal motor vibrations or noise?
When overcurrent tripping or overvoltage tripping occurs during the test run, increase
the acceleration time or deceleration time.
Maximum frequency: 60 Hz
Forward operation
An example of a general connection diagram is shown below.
Operating with digital operator:
When setting frequency, run and stop
with digital operator.
(The same way as remote operator
(DOP) or copy with (DRW).)
Three
L1
phase
L2
power
L3
supply
*: For sink type wiring.
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Factory settings
Inverter
ELB
R(L1) (T1)U
S(L2) (T2)V
T(L3) (T3)W
RB
P
(+)
N
(-)
FW
CM1
Digital
*
PLC
operator AL
0
P24
AL
1
8
AL
2
1
H
11
O
OI
12
L
G
CM
2
(PE)
Ground
CAUTION
Running from external command:
When setting frequency, run and stop
from external command (FW,RV Terminal.)
The following shows run from
the operation box (OPE-4MJ2,OPE-8MJ2)
Three
L1
phase
L2
power
L3
supply
Dynamic braking
resistor
Daynamic
braking unit
Frequency meter
Fault alarm signal
Forward
(Normal:
run/stop
AL0-AL1: ON
Abnormal: Reverse
Power off: run/stop
AL0-AL1: OFF)
Frequency
setter
6-3
Inverter
ELB
R(L1) (T1)U
S(L2) (T2)V
T(L3) (T3)W
*
PLC
P24
FW
Digital
8
operator
FM
CM1 AL
AL
H
H
O
O
OI
L
L
Operator
OPE-4MJ2
G
CM
OPE-8MJ2
(PE)
Ground
Motor
Dynamic braking
RB
P resistor
(+)
N Daynamic
(-)
braking unit
0
1 Fault alarm
AL
signal
2
11
12
2