WEG DeviceNet CFW500 - A137;F237 - Devicenet Connection Timeout

In this case the alarm A136 – or the fault F236, depending on the P0313 programming, will be signalized
through the HMI. In case of alarms, If the master is set in the
Run mode again (normal equipment operation
status), the alarm indication will be removed from the HMI.
Possible Causes/Correction:
 Adjust the switch that commands the master operation mode for execution ( Run ) or set the correspondent
bit in the configuration word of the master software. In case of doubts, referrer to used master
documentation.
A137/F237 – DEVICENET CONNECTION TIMEOU T
Description:
It is the alarm that indicates that one or more DeviceNet I/O connections have expired.
Actuation:
It occurs when, for any reason, after the cyclic communication of the master with the product is started, this
communication is interrupted.
In this case the alarm A137 – or the fault F237, depending on the P0313 programming, will be signalized
through the HMI. In case of alarms, if the connection with the master is reestablished, the alarm indication will
be removed from the HMI.
Possible Causes/Correction:
 Check the status of the network master.
 Check the network installation, broken cable or failed/bad contact in the network connections.
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