Procedure #6 - Honeywell UDC2800 Product Manual

Procedure #6

This table explains how to troubleshoot Position Proportional Output
failure symptoms.
Table 8-10: Troubleshooting Position Proportional Output Failure
Step What to do
1 Make certain that
the controller is
configured for
Position
Proportional
output.
2 Check the field
wiring.
3 Check the output. Put the controller into Manual mode and change the
4 Check whether
the motor drives
in both
directions. If it
does go to Step 6.
5 Check whether
the motor drives
in either
direction. If the
motor drives only
in one direction,
check the
slidewire. If the
motor does not
drive in either
direction, check
the motor.
6 Check the output
voltage to the
slidewire (if used).
How to do it
Make Output Set Up group function prompt Output
Algorithms = Position Proportion.
See Output Set Up Group for more information.
See Installation for more information.
output from 0 % to 100 %.
See Position Proportional and Three Position Step Output
Calibration for more information.
Refer to the motor instructions.
See the Input 2 wiring diagram for terminal designations in
Section – Installation.
1) Measure between the R and the – terminals (across the
entire slidewire). This voltage should be between 0.024
volts (for a 100 ohm slidewire) and 0.200 volts (for a 1000
Chapter 8 - Troubleshooting/Service
269