Lenze 8400 motec - Manual (Page 182)

6 I/O terminals
6.1 Digital terminals
182 Lenze · 8400 motec · Reference manual · DMS 4.1 EN · 08/2013 · TD05
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
Tip!
How you can alter the preconfigured assignment of the input and output terminals is de-
scribed in the chapter entitled " User-defined terminal assignment ". ( 191)
6.1 Digital terminals
Digital input terminals
Depending on the communication unit used, the controller has
• several parameterisable input terminals (DIx) for detecting digital signals.
• one RFR control input for controller enable.
Digital output terminals
Depending on the communication unit used, the controller has
• a parameterisable output terminal (DO1) for outputting digital signals,
• a parameterisable relay switch contact (NO contact).

Danger!
The RFR control input is connected as default with a bridge to +24 V, which means that
the controller is enabled!
• This input can also be used for switching on/off the drive. For this purpose, the bridge
must be replaced by cabling.

Note!
Initialisation behaviour:
• After mains switching up to the start of the application
• the digital output remains set to FALSE.
• the switch contact of the relay remains opened.
Exception handling:
• In the event of a critical exception in the application (e.g. reset), the digital output is
set to FALSE.
• While the Lenze setting is loaded
• the relay may be energised or de-energised for a short time.
• the digital output can be set for a short time.
Switching cycle diagnostics of the relay:
• A reference for evaluating the wear limit can be obtained via the number of switching
cycles of the relay displayed in C00177/2 .