Chziri ZVFG7 series, Руководство пользователя

Страница: 33 / 41

7.2
OU-2 OU-3
Diagnose and treatment of main malfunction
7.2.1 Under-voltage
Under voltage LU
Whether power off(including
instant power off)
Reset and
restart
Yes
No
Whether the power supply
circuit malfunction or not
be connected well. Replace malfunction
components and
rectify connection
Whether the voltage is
within the bound of regulate
Whether there is big starting
current load in the same
power system
Change the power system
to accord with the regulate
Whether start when the circuit
breaker and magnetic
contactor switch on
Whether the capacity of
power supply transformer
is suitable
Possible is Inverter
malfunction or because of
mal-operating, please contact
our company
Possible is Inverter
Malfunction, please contact
our company
Yes
No
No
Yes
Yes
No
Yes
No
Yes
No
7.2.2 Over-voltage
over-voltage
when accelerating when decelerate when constant-speed
over-voltage over-voltage
OU-1
Decrease the
power voltage to
be within the
bound of
regulate
Whether the power voltage is within the
bound of regular
Whether operate when load-off the
load suddenly
Possible
because
of Inverter
malfunction or
mal-operating.
Please contact
our company
When operating whether the main circuit
DC voltage is the same or more than prote
ction value.
Whether OU-1
is accelerating
to stop Whether could in
crease set time for
decelerate
Whether could
increase set time
for accelerate
Increase set time
Decrease the
inertia?
Whether could decrease the load inertia
Consider using
braking unit and DC
brake operation
Must examine breaking method,
please contact our company
Yes
No
Yes Yes
Yes
No No No
No
No
Yes Yes Yes
Yes
No No No
Yes
Yes Yes Yes
No
Article7 Fault Diagnosis and Treatment Article7 Fault Diagnosis and Treatment