Distech Controls ECLYPSE ECY-STAT User Manual page 121

CHAPTER 14
ECY Controller Troubleshooting
You can use this Troubleshooting Guide to help detect and correct issues with the ECLYPSE Series
controllers.
Symptom Possible Cause
Fuse has blown (for
24V controllers)
Power supply polarity
Controller is powered
but does not turn on
The device does not
have power / poor-
quality power (for 24V
controllers)
Input wiring problem
Open circuit or short
Hardware input is not
circuit
reading the correct
value
Configuration problem
Over-voltage or over-
current at an input
Fuse has blown (Auto
reset fuse, for 24V
controllers)
Output wiring problem
Hardware output is not
operating correctly
Configuration problem
0-10V output, 24VAC
powered actuator is
not moving
Table 7: Troubleshooting Controller Symptoms
ECLYPSE Connected Thermostat (ECY-STAT)
Solution
Disconnect the power. Check the fuse integrity. Reconnect the power.
Verify that consistent polarity is maintained between all controllers and the
transformer. Ensure that the COM terminal of each controller is connected to
the same terminal on the secondary side of the transformer.
Verify that the transformer used is powerful enough to supply all controllers.
Check that the wiring is correct according to the module's hardware
installation manual and according to the peripheral device's manufacturer
recommendations.
Using a voltmeter, check the voltage on the input terminal. For example, for
a digital input, a short circuit shows approximately 0V and an open circuit
shows approximately 5V. Correct wiring if at fault.
Using the controller configuration wizard, check the configuration of the
input. Refer to the controller's user guide for more information.
An over-voltage or over-current at one input can affect the reading of other
inputs. Respect the allowed voltage / current range limits of all inputs.
Consult the appropriate datasheet for controller input range limits.
Disconnect the power and outputs terminals. Then wait a few seconds to
allow the auto-reset fuse to cool down. Check the power supply and the
output wiring. Reconnect the power.
Check that the wiring is correct according to the module's hardware
installation manual and according to the peripheral device's manufacturer.
With EC- gfx Program, check the configuration of the output; for example, is it
enabled? Refer to the EC- gfx Program User Guide for more information.
Check the polarity of the 24VAC power supply connected to the actuator
while connected to the controller. Reverse the 24VAC wire if necessary.
ECY Controller Troubleshooting
121