Tdu Troubleshooting Table - GE T2100 Service Manual

Troubleshooting
LED Status
DS3
DS4
DS5
DS6

TDU Troubleshooting Table

Determine the error codes being reported by TDU and use the table below to help
troubleshoot the cause, and identify the repair. Some TDU event/error codes also have
detail descriptions breaking out specific causes within the event/error code.
84
Name
Temperature
Communication
Emergency Stop
Heartbeat
T2100 Treadmill
Description
This LED toggles on or off every 500ms if a
temperature warning occurs. The LED turns on
and stays on if a temperature error occurs. The
LED will be off when the internal temperature is
within the normal operating limits.
This LED toggles on or off every 200ms while the
microcontroller is receiving commands over the
serial cable. If a command is not received after
500ms, the LED turns off. If a communication
timeout occurs (no communication after 4
seconds anytime the belt is enabled), the LED
turns on and stays on until a command is
received.
This LED toggles on and off every 500ms while
the system is monitoring the emergency stop
line. When the emergency stop button is pressed
or the ESTOP command is received, the LED
turns on and stays on until 20 seconds after the
emergency stop button is released.
This LED toggles on or off every second when
power is applied to the e-box. If power is applied
and there is no heartbeat:
1. Verify the ESTOP switch is correctly installed.
2. Check the fuses.
3. Check the power test points for +24v and
+5v.
If all the items above are working correctly, the
problem is not in the e-box.
2021403-120F