YASKAWA Varispeed-606PC3 User Manual

1 .
VS-606PC 3 INVERTER MAIN UNIT
(Cont 1 d)
Table 1 .11

Motor Faults and CorrectiVE . Actions (Cont'd)
* Because of motor and load (geared machine) characteristics, motor
r/min
becomes
unstable or motor current apples . To correct these problems,
changing
the
inverter
control constants may be effective Refer to "CONSTANTS EFFECTIVE FOR
REDUCTIONOFMACHINE VIBRATION OR SHOCK" on page 129 for details of control
constants to be
changed
.
Fault Check
Point
' Corrective
Action
Wiring of frequency setting
Correct the
wiring .
circuit is correct .
Motor rotates but
variable speed is
Operation (method selection)
Check operation method
; ;election mode [constant (No .
not available .
mode setting is correct .
01)) by digital operator
.
Load is not
excessively large . Reduce the load .
Motor ratings (number of Check the specifications and
poles, voltage) are proper
.
nameplate .
Motor r/min is too
Maximum
frequency set value
Check the maximum frequency
high
(low) .
is correct .
set value (constant (No .02))
Voltage between motor
terminals
check V/f characteristic set
is not excessively reduced . (Use
value [constant (No 02 to 08)) .
rect i f i er type voltage .)
Load is not excessively
large
Reduce the load .
Load
variation
is
not
Reduce the load variation
Increase the inverter or motor
Motor r/min is not
excessively large .
capacity .
stable
duing
operation*
3-phase
power supply
is
used
Reconnect properly to prevent
There is no open phase
open phase .
Single-phase power supply is Connect an AC
reactor to the
used . power supply .

YASKAWA Varispeed-606PC3 Specifications

General

Brand	YASKAWA
Model	Varispeed-606PC3
Category	Inverter
Language	English