9.2 Troubleshooting WTC 200 controller / LED displays
LED
Status
1,
• Green light
2,
4
• Irregular green/red
flashing
• Red light
• Rapidly alternating
green/red flashing.
3-5
• Inactive
6
• Rapid red flashing. • No valid software in the
• Rapid green
flashing
• Slow green
flashing
• Irregular blue
flashing
• Rapidly alternating
green/red flashing
6
• White/light blue
flashing
• Violet flashing
9
• Yellow light
14
98
Meaning
• Interface communication
OK
• Communication interrupted. • Check whether all configured
• Communication not
possible.
• Interface power supply
interrupted.
controller.
• Wait for reset (Micro SD
card is ignored, not
available, or not readable).
• The Micro SD card does not
belong to the device.
• Micro processor is
programmed.
• No MAC address or no valid
MAC address
• Controller is not connected
to the host.
• Communication is taking
place between the
controller and host.
• Relay has power.
Cause/Remedy
participants are connected.
• Pins A and B were mixed up when
connecting a device.
• Check device connection and
correct if necessary.
• Check whether pins A and B on the
controller are connected correctly.
• Overloading of the power supply
output port: Possible causes are a
short circuit in the wiring, a defective
end user or connection of an
external device that requires too
much energy.
• Check wiring for short circuit and
remedy the issue if necessary.
• Check end consumer is functioning
correctly and replace if necessary.
• If the end consumer requires too
much energy, power the end
consumer with the help of an
independent, on-site energy source.
• Copy valid software to the Micro SD
card.
• Notify the customer service of the
system supplier.
• Insert or replace the Micro SD card.
• Notify the customer service of the
system supplier.
• Insert the correct Micro SD card or
use the software to validate the
Micro SD card.
• Notify the customer service of the
system supplier.
• Send the controller to the customer
service of the system supplier to be
repaired.
• Check network infrastructure.
• Check IP address on the SD card.