Lenze E82ZAFVC010 - Manual (Page 36)

Diagnostics
Troubleshooting and fault elimination
7
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36 EDS82ZAFVCxxx EN 4.0
7.2 Troubleshooting and fault elimination
No communication with the controller.
Possible causes Diagnostics Remedy
Is the controller switched on? One of the operating status LEDs of
the basic device must be on.
Supply controller with voltage.
Is the communication module
supplied with voltage? The LED "Connection status to the
basic device" must be lit or blinking
green. Check the external voltage supply.
The measured voltage value at the
terminals for external voltage
supply of the communication
module must be in the range of 24 V
± 10 %.
The communication module has not
yet been initialised with the
controller.
Possibility 1: controller not switched
on
Possibility 2: check the connection to
the controller
Does the controller receive
telegrams? The LED "Connection status to the
bus" at the communication module
must be blinking green when
communicating with the master
computer. Check your wiring (see ^ 20).
Check whether your master
computer sends telegrams.
Check the data assignment in the
scan list (I/0 mapping).
Is the available device address
already assigned?
Check the setting of the other nodes
on the DeviceNet.