Rhymebus RM6F5 series, Operation Manual

Page: 145 / 195

Chapter 8 Operation Procedures and Fault Protection
145
8
Error Trip Messages of Drive
Display Description Cause Troubleshooting
(OC)
SV
KEYPAD
PV
Running
Drive over
current
The output current
of drive during
operation exceeds
220% of drive’s
rated current.
●The output
terminals of drive
are short.
●The load is too
heavy.
●The acceleration
time is too short.
●Drive starts at zero
speed while the
motor is still
running in rotation
condition.
●Wrong wiring or
bad insulation.
●Starting voltage is
too high.
●The motor terminal
installs an
advance-phase or
filter capacitor.
●Check wires of
U/T1,V/T2,W/T3
terminals to verify if
there is short
between terminals.
●Check the motor
and drive
compatibility.
●Check if the motor
operated in
over-rated condition.
●Check if the the
acceleration time is
too short.
(GF)
SV
KEYPAD
PV
Running
Grounding fault
●The three-phase
output current is
unbalance and
exceeding the
detection level of
grounding fault.
●Grounding fault
protection: F_098
The output terminal
of the drive is short
or grounding.
Check the insulation
value of motor and
the shield of motor’s
wire.
(OE)
SV
KEYPAD
PV
Running
Over voltage
●The internal DC
bus voltage of
drive is over the
protection level.
●100V / 200V
series: About
DC410V.
●400V series:
About DC820V.
●The deceleration
time of motor is too
short causing the
regeneration
voltage on DC bus
too high.
●Power voltage is
too high.
●Increase the
―deceleration time‖ or
use high torque
braking and dynamic
brake unit to reduce
input voltage.
●Check if the power
input is within drive’s
rated input range.
●Add AC reactor at
power input terminal.