KMC Controls
Revision J
Operating the controller
Powering the controller
24
LED indicators
Six LEDs on the front of the controller display system status. Use the LEDs to
confirm proper operation or as an aid when troubleshooting.
PWR
Flashes green during normal operation. The normal cycle is one second on
and one second off.
S-LAN
Momentarily flashes yellow during the time when data is being
transmitted to either the KMD Tier 2 network controllers or to the connected
Modbus devices.
PC
Flashes when sending or receiving data from a computer.
COL
Momentarily flashes red when a collision occurs in Ethernet traffic.
Rx
Flashes green when Ethernet traffic is being received.
Tx
Flashes green when Ethernet traffic is being transmitted.
Powering the
controller
Use the jumper located next to the power terminal to disconnect the 24 volt AC
power from the controller while making wiring changes. Remove the power
terminal or disconnect the power feeding the transformer before removing the
controller. The controller begins operation as soon as power is applied.
Maintenance
The controller does not require routine maintenance. If cleaning is required, wipe
with a
soft, damp cloth and mild soap.
Replacing the fuse
If a fuse opens, investigate the cause, and then replace the fuse. To replace the
fuse:
1. Remove the power connection to the module.
2. Carefully pull out the open fuse from the fuse holder.
3. Carefully snap an identical 1.6 ampere, fast-acting, fuse into the fuse
holder.
4. Reconnect the power.
