9
LED MONITOR (Standard Component)
Monitor Functions and Displays
■ Status Displays
Displays the status of the VS-656RC5 and operates the
photocoupler outputs.
Status Displays
■ Fault Displays
When the VS-656RC5 detects a fault, the LED monitor indicates
the type of fault and the fault contact outputs are activated.
Fault Displays
READY
RUN
Ready
Running
LED Display
RUN
DS1
DS2
Meaning
Contents
External Fault: An external fault was input from the contact input terminal.
Overload: The load is too heavy.
Heatsink Overheating: Heatsink was over 105 ℃(factory setting).
Control Power Fault: The control power supply voltage dropped.
Inrush Prevention Circuit Fault: A fault occurred in the inrush prevention circuit.
Power Supply Frequency Fault: Power supply frequency was over 3Hz (factory setting)
Overcurrent: The AC current of the power supply was over the overcurrent detection level. (Approx. 200% of the rated current)
Main Circuit Overvoltage: The DC voltage of the main circuit was over the overvoltage detection level.
(200 V class: approx. 406 VDC or more, 400 V class: approx. 812 VDC or more)
Main Circuit DC Undervoltage: The DC voltage of the main circuit was below the undervoltage detection level.
(200 V class: appox. 190 VDC or less, 400V class: appox, 380 VDC or less)
Main Circuit AC Undervoltage: The AC voltage of the main circuit was below the undervoltage detection level during a run.
(200 V class: approx. 150 VAC or less, 400 V class: approx. 300 VAC or less)
Baseblock Circuit Error
EEPROM Error
CPU Internal A/D Converter Error
LED Display
RUN
DS1
DS2
Meaning
Contents
EF
OL
OH
OV
UV
OC
CPF
■ Alarm Displays
An alarm is displayed when the VS-656RC5 detects a minor fault. The VS-656RC5 automatically
returns to the original status when the cause of the fault has been removed.
Alarm Displays
External Fault: An external fault was input from the contact input terminal.
Overload: The amount of the load was over 80 % of the overload capacity.
Heatsink Overheating: The temperature of the heatsink was over 90 ℃(factory setting).
Overvoltage: The DC voltage of the main circuit was over the overvoltage detection level.
(200 V class: approx. 406 VDC or more, 400 V class: approx. 812 VDC or more)
Main Circuit Undervoltage: The following conditions occurred during a stop.
・The main circuit DC voltage was below the undervoltage detection level.
(200 V class: approx. 190 VDC or less, 400 V class: approx. 380 VDC or less)
・The surge current limiting contactor opened.
・The control power supply is below the undervoltage detection level.
(200 V class: approx. 150 VAC or less, 400 V class: approx. 300 VAC or less)
・Frequency detecition was over the allowable level.
・The voltage phase rotation on the input side changed.
LED Display
RUN
DS1
DS2
Meaning
Contents
ALARM
EF
OL
OH
OV
UV
Power ON LED
Lit when the power is ON
Monitor LED
Display status
combinations
Indicates the operation
status by the combination
of the LEDs (Lit, Blinking,
or Off)
Lit
Blinking
Off
