Distech ECYPSE User Manual

166 ECLYPSE User Guide
CHAPTER 16
ECY CONTROLLER TROUBLESHOOTING
Table 16-1: Troubleshooting ECY Controller Symptoms
Symptom
Possible Cause
Solution
Controller is
powered but does
not turn on
Fuse has blown (for 24V
controllers)
Disconnect the power. Check the fuse integrity.
Reconnect the power.
Power supply polarity
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. See DHCP versus Manual
Network Settings on page 19.
The device does not have
power / poor-quality
power (for 24V
controllers)
Verify that the transformer used is powerful enough
to supply all controllers. See Transformer Selection
and Determining the Maximum Power Run Length
on page 131.
Device does not
communicate on
the BACnet
MS/TP network
Absent or incorrect supply
voltage (for 24V
controllers)
1. Check power supply voltage between
24VAC/DC and 24V COM pins and ensure that it is
within acceptable limits (±15% for 24V controllers).
2. Check for tripped fuse or circuit breaker.
Overloaded power
transformer (for 24V
controllers)
Verify that the transformer used is powerful enough
to supply all controllers. See Transformer Selection
and Determining the Maximum Power Run Length
on page 131.
Network not wired
properly
Double check that the wire connections are correct.
Absent or incorrect
network termination
Check the network termination(s).
Max Master parameter
Configure the Max Master to the highest MAC
Address of any device on the MS/TP data bus. See
Setting the Max Master and Max Info Frames on
page 127.
There is another
controller with the same
MAC Address on the
BACnet MS/TP data bus
Each controller on a BACnet MS/TP data bus must
have a unique MAC Address. Look at the MAC
Address DIP switch on the faceplate of each
controller. If it is set to 0 (all off), use an Allure
EC-Smart-Vue sensor to check the MAC Address.
There is another
controller with the same
Device ID on the BACnet
intranetwork
Each controller on a BACnet intranetwork (the
entire BACnet BAS network) must have a unique
Device ID. Use an Allure series communicating
sensor to check the Device ID of each controller.
See Adopting a Numbering System for MAC
Addresses, Device Instance Numbers, and
Network Numbers on page 127.
BACnet data bus polarity
is reversed.
Ensure the polarity of the BACnet data bus is
always the same on all devices. See BACnet
MS/TP Data Bus is Polarity Sensitive on page 110.

Distech ECYPSE Specifications

General

Brand	Distech
Model	ECYPSE
Category	Controller
Language	English