Caution, 3 6.2 test run – Hitachi J300U Series User Manual

Page 37

6-3

6.2

Test Run

CAUTION

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

Factory settings

*: For sink type wiring.

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).)

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)

(T1)U
(T2)V

(T3)W

(+)

FW
CM1
PLC
P24
8

1
H
O
OI
L

Inverter

Ground

Digital

operatorAL

Fault alarm signal
(Normal:
AL0-AL1: ON
Abnormal:
Power off:
AL0-AL1: OFF)

Inverter

Dynamic braking
resistor
Daynamic
braking unit

FW
8

FM
CM1

Operator

OPE-4MJ2
OPE-8MJ2

Frequency meter

Reverse

run/stop

Forward

run/stop

Frequency

setter

Ground

Motor

Fault alarm
signal

H
O
OI
L

H
O

ELB

L1
L2
L3

R(L1)
S(L2)
T(L3)

ELB

Three
phase
power
supply