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8.1.1 Power Supply Check
If the PWR (power) LED is not lit after power on, check the following points.
Check the power connection
Connection terminals are correct.
The terminal screws are not loose.
The terminal block is installed securely.
Correct
Check the power voltage
24 VDC; +/- 15%
at the V200’s terminal
Normal
Remove the programmer
If the PW R LED becomes normal, the
port connector
internal supply may be shorted in the
external connections of this port.
Still unlit
Remove the expansion
If the PWR LED is still OFF, the V200
Unit
basic unit may be faulty. Replace the unit.
Lit
Insert the removed expansion
Replace the faulty expansion unit.
Unit one by one to pinpoint
the faulty expansion
8.1.2 CPU Check
If the RUN LED is not lit after power on, check the following points.
Check the position of the
If it is not in R (RUN) position, turn the
mode control switch
switch to R (RUN) position.
Check the ERR (error) LED
If the ERR LED is lit, the V200 CPU PLC
model is in the ERROR mode. Confirm the
error message by connecting the programming
tool.
If only ERR LED is blinking either ladder or
application is invalid. Download the program
again.
Is the RUN & ERR LED blinking ?
Firmware is invalid. Download the firmware again.
8.1.3 Program Check
Check the user program based on the following points if it is running but the operation does not work as intended.
1. Whether duplicated coils are not programmed.
2. Whether a coil device and a destination of a function instruction are not overlapping.
3. Whether the ON/OFF duration of an external input signal is not shorter than the unit’s scan time.
4. Whether a register/device which is used in the main program is not operated erroneously in the interrupt
program.
Summary of Contents for V200 GAA242**S
Page 66: ...Page 58 V200 PLC with DIN rail slider Front View Rear View ...
Page 78: ...Page 70 Aladder Text Editor appears as shown below Now here you can create your ladder ...
Page 82: ...Page 74 CONFIGURATION Configuring V200 with OIL DS Tag Database Register Memory Allocation ...
Page 84: ...Page 76 5 Press OK Project Configuration window will pop up as shown below ...
Page 104: ...Page 96 OPERATING SYSTEMS OVERVIEW System Operating Modes Mode Selection ...
Page 124: ...Page 116 TROUBLESHOOTING Troubleshooting Procedure Self Diagnostics ...