Saftronics CIMR-VG5U Installation & Quick Start Manual page 65

Fault Display
OV
Overvoltage (OV)
Overvoltage
SC
Load short-circuit (SC) Inverter output (load) is short-circuited.
Short Circuit
PUF
Fuse blown (FU)
DC Bus Fuse Open
OH Heatsink overheat
Heatsink Over tmp (OH1)
OL1
Motor overload (OL1)
Motor Overloaded
OL2
Inverter overload (OL2)
Inv Overloaded
PF
Input open-phase
Input Pha Loss
LF
Output open-phase
Output Pha Loss
RR Braking transistor fail-
Dyn Brk Transistr ure
RH Braking resistor unit
Dyn Brk Resistor overheat
OS
Overspeed (OS)
Over speed
PGO
PG open circuit (PGO) The PG line is broken.
PG open
DEV
Speed deviation (DEV)
Speed Deviation
EF Simultaneous forward/
External Fault reverse run commands
BB
External baseblock
Base Block
VG5 Installation & Quick-Start Manual
Name
The main circuit direct current voltage
exceeded the OV level.
Detection level
230 V class: Approx. 410 V
460 V class: Approx. 820 V
575 V class: Approx. 1040 V
·The DC bus fuse is blown.
·The output transistors were damaged.
The transistor heatsink temperature
exceeded the allowable value.
Inverter output exceeded the motor
overload level.
Inverter output exceeded the inverter
overload level.
Inverter input power supply has open
phase.
Large unbalance in input voltage.
Inverter output has open-phase.
The braking transistor has failed.
The braking resistor unit temperature
has exceeded the allowable value.
(Protects only inverter built-in type)
The motor speed exceeded the over-
speed level.
The deviation of the speed reference
and speed feedback exceeded the
regulation level.
Both FWD and REV run commands
are simultaneously input for 500ms or
longer.
External baseblock command is input
from control circuit terminal.
Description
Extend the deceleration time,
add braking circuit.
·Check the motor coil resis-
·Check the motor installation.
Check for damaged transis-
tor, load side short circuit,
grounding, etc.
Check the fan and ambient
temperature.
Reduce the load.
Reduce the load, extend the
acceleration time.
·Check the line voltage.
·Re-tighten the input terminal
·Check the output wiring.
·Check the motor imped-
·Re-tighten the output termi-
The inverter requires repair.
Reduce the regenerative
load.
·Check the PG line.
·Check the condition of the
Check the load.
Check sequence circuit.
Check sequence circuit.
Chapter 4 - Diagnostics
Alarm & Fault Displays
Corrective Action
tance.
screws.
ance.
nal screws.
--
motor lock or the load.
Class
A
A
A
A
A
A
A
A
A
A
A
A
B
B
B
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