General Settings - Lenze i950 Commissioning Manual

12.1.1

General settings

This chapter provides information on general settings of feedback systems for the motor con-
trol.
Pressing the Select resolver or Select encoder button displays a list of resolvers or encoders.
If the displayed list contains the feedback system used, the data is applied automatically.
Otherwise, you must enter the data of the feedback system manually.
Monitoring of the encoder cable for wire breakage
The resolver or encoder cable can be monitored for wire breakage in the default settings of
parameter 0x2C45.
DANGER!
When the encoder / resolver is used as a motor encoder, safe motor operation is not possible
in the event of an error.
Destruction of system parts
▶ Fault should always be used as a response for resolver/encoder wire breakage monitoring.
▶ To prevent interference injections when using an encoder, only use shielded motor and
encoder cables.
Wire breakage monitoring trips in the following cases:
Resolver
•
Wire breakage in the encoder cable
•
When the resolver impedance is too great
•
In the event of interference injections (EMC interference)
•
Encoder
•
Wire breakage in the encoder cable
•
Sensitivity of wire breakage monitoring
The sensitivity of wire breakage monitoring can be set as a percentage using the
parameter.
Reducing the monitoring sensitivity is advantageous in environments that are severely affec-
ted by EMC problems.
If the sensitivity is not reduced (100 %), the software response time of monitor-
ing in case of an encoder is approx. 3.5 ms and in case of a resolver 0.3 ms.
Halving the sensitivity means doubling the response time.
NOTICE
A reduced sensitivity delays the response in case of wire breakage!
Destruction of system parts by reduced sensitivity of the open-circuit monitoring.
▶ Increase the sensitivity to reduce the monitoring response time.
Parameter
Address Name / setting range / [default setting]
0x2C45 Encoder-error response
0 No response
1 Fault > CiA402
2 Warning
Configuring the feedback system
Configure feedback system for motor control
0x2C47
Info
Selection of the response to the triggering of the encoder signal loss
monitoring.
Only active when used as:
• Feedback system for motor control, when set
Associated error code:
• 29443 | 0x7303 - RANLI_CIMES_1000_20870
General settings
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