7-3
7-2 Checks Using Flowchart
7-2-1 Malfunctions not Followed by Alarms
(1) Vector control and sensorless vector control
1) Motor does not run.
Does motor run when
you push ?
NO
NO
NO
KEYPAD
panel
Control
circuit
terminals
NO
NO
NO
Too heavy load locks motor.
Decrease load or increase inverter or motor capacity.
Check if brake is released when mechanical brake is installed.
YES
NO
YES
NO
NO
NO
YES
NO
YES
NO
YES
YES
NO
YES
NO
YES
NO
YES
YES
YES
NO
YES
YES
Turn on circuit breaker
or magnetic contactor.
Check for low voltage,
phase loss, defective
connection or poor
contact to take
proper measure.
Inverter fault is suspected.
Contact FUJI.
Fault in speed
reference setting device,
relay or switch is
suspected.
Adjust wiring.
Connect DC REACTOR
or jumper wire.
Inverter fault is suspected.
Contact FUJI.
Adjust wiring.
YES
YES
Is circuit breaker or
magnetic contactor
turned on?
Is voltage on main
circuit power terminals
(R, S, T) normal?
Is DC REACTOR or
jumper wire connected
between terminal
P1 and P(+)?
Is external circuit
wiring between
control terminal
FWD and COM and
between REV and
COM connected
correctly?
Is external circuit wiring
between control
terminal 11 and 12
connected correctly?
Are charge lamp and
LCD of KEYPAD
panel ON?
Does LCD of KEYPAD
panel show alarm
mode screen?
Which do you use to
enter operation
command, KEYPAD
panel or control
circuit terminals?
Is operation command
input ON on
"I/O check" screen of
KEYPAD panel LCD?
Is speed reference
specified?
Is voltage present on
inverter output
terminals (U, V, W)?
Is wiring to motor
connected correctly?
Motor does not run.
Remove cause of alarm
and restart after resetting
alarm.
Continue operation if
you see no problems.
Motor fault is suspected.
Push to set speed.
∧
Is load too heavy?
Does motor run
when you push
or key ?
∧
FWD
REV
Содержание 5000VG7S Series
Страница 7: ...0 6 Warning Label Position for Inside the Inverter...
Страница 23: ...2 5 Basic Wiring Diagram Figure 2 3 1 Basic Wiring Diagram...
Страница 36: ...2 18 l Control circuit terminals Control circuit terminals Screw size M3...
Страница 94: ...9 4 FS5941 40 47 Figure 9 1 FS5941 60 52 FS5941 86 52 Figure 9 2...
Страница 96: ...9 6 RF3280 F11 RF3400 F11 Figure 9 5 RF3880 F11 Figure 9 6 6 6 Figure 9 7 F200160...