Lenze E94AxHE Servo Drives 9400 HighLine (Firmware 01-37) - Manual (Page 108)

9400 HighLine | Parameter setting & configuration
Encoder evaluation
108 Firmware 1.37 - 09/2006
L
6 Encoder evaluation
This chapter informs how to use feedback systems for the motor control.
See also: Parameterise motor encoder (C 70)
Note!
The encoder position is stored safe against mains failure in the memory module
and is therefore known to the drive control even after the mains has been
switched.
The position resolution of higher-level applications follow the resolution of the
encoder which will be activated for the position control.
Behaviour of the home position after mains switching
If the home position/information is to be available after mains switching as well,
the setting C02652 = "1: Keep" is required.
• One further condition for keeping the home position/information after
mains switching is the compliance with the maximally permissible angle of
rotation of the encoder which can be set in C02653 .
• When resolvers or single-turn absolute value encoders are used and the
mains is switched off (24-V supply off), the drive may only be moved by ½
motor revolution since otherwise the home position will get lost due to the
ambiguity of the encoder information.

Danger!
When using the encoder/resolver as motor encoder:
In case of an error as safe motor operation cannot be ensured anymore. Thus, the
"Fault" response (Lenze setting) should be set permanently for the (open circuit)
monitoring of the encoder/resolver!
•
C00580 : Response to open circuit of encoder
• C00586 : Response to open circuit of resolver
• C00601 : Response to communication error of encoder