User`s manual

Western Reserve Controls WRC-CANX-xx Series 4
PUB 14.1 User’s Manual
9
Table 4-2 Module Status LED (labeled MS)
LED State Module Status Meaning
OFF No Power There is no power through DeviceNet.
Green
Device Operational WRC-CANX is operating normally.
Flashing Red Minor Fault
Advanced Memory Technology (AMT)
buffers space exceeded.
Red Unrecoverable Fault WRC-CANX may be damaged.
Flashing Red/Green Device Self-Testing WRC-CANX is in self-test mode.
Table 4-3 Network Status LED’s (labeled NSA and NSB)
LED State Module Status Meaning
OFF No Power / Not on-line
WRC-CANX has no power or device is not
operating.
Flashing Green Idle
WRC-CANX has not received a valid
message for 0.5 sec.
Fast Flashing Green Autobaud selection
The WRC-CANX is waiting for a valid
message to fix the baudrate.
Green
On-line WRC-CANX is operating normally.
Flashing Red
CAN controller buffer overflow
There is more traffic on the network than
the system can handle.
Red Critical link failure (Bus Off)
WRC-CANX has detected an error that
makes it incapable of communicating on
the link.
Table 4-4 Diagnostic Status LED’s (labeled DGN)
LED State Module Status Meaning
OFF Normal operation
No Power, or
Normal Operation with power applied.
4.4. Power Requirements
The WRC-CANX-XX CAN-Bus Extender subsystem is powered from the 11-25 Vdc provided by
the DeviceNet network. The WRC-CANX consumes 60 mA of current at 25 Vdc, or 1.5 Watts, typical. See
Section 3.
Power is typically taken from the bus on each side and each side (A and B) requires power. Power
applied to the A Side powers the entire unit except the B Side isolated transceiver. If isolation is not
required for your application, then the power line may be jumpered from side A to side B. Care must be
taken that the power supply is capable of handling the entire load on both sides of the CANX.