1 resolver/multi-encoder open-circuit monitoring, Resolver/multi-encoder open-circuit monitoring, 6encoder/feedback system – Lenze 8400 TopLine User Manual
Page 369: Danger
Lenze · 8400 TopLine · Reference manual · DMS 6.0 EN · 06/2014 · TD05/TD14
369
6
Encoder/feedback system
6.7
Monitoring
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6.7.1
Resolver/multi-encoder open-circuit monitoring
In the Lenze setting, the resolver cable and/or encoder cable are monitored with regard to open
circuit as a function of the selected speed and position encoder.
Tip!
We recommend the Lenze setting "0: Speed sensor and position encoder" for open-circuit
monitoring (
). Further possible settings make sense if the respective encoder is not
used as speed sensor or position encoder but for other tasks in the application. Moreover,
a selective switch-off of the monitoring is possible if other settings are made.
When does the open-circuit monitoring system respond?
Response to open circuit
Danger!
• For safety reasons, always select "Fault" (Lenze setting) as a response for the (open-
circuit) monitoring of the resolver/encoder!
• To avoid interference when using an encoder, only use shielded motor and encoder
cables!
Open-circuit monitoring
(
)
Function
0: Speed encoder and position
encoder
(Lenze setting)
Open-circuit monitoring is active for the speed encoder selected in
and the position encoder selected in
.
• Depending on whether a speed encoder or position encoder has been
selected, the monitoring mode for the resolver and/or encoder is
activated.
• If no speed encoder and position encoder have been selected, open-
circuit monitoring is deactivated.
1: Resolver only
Open-circuit monitoring is only active for the resolver, independent on the
selection of the speed encoder and position encoder.
• Open-circuit monitoring for the encoder is deactivated.
2: Encoder only
Open-circuit monitoring is only active for the encoder, independent on the
selection of the speed encoder and position encoder.
• Open-circuit monitoring for the resolver is deactivated.
3: Resolver and encoder
Open-circuit monitoring is active for the resolver and encoder, independent
on the selection of the speed encoder and position encoder.
Resolver
Multi encoder
• In case of open circuit in the encoder cable.
• If the resolver impedance is too high.
• In case of EMC interferences.
• In case of open circuit in the encoder cable.
Resolver
Multi encoder
The error response set in
is triggered (Lenze
setting: "0: No Reaction").
"
The error response set in
is triggered (Lenze
setting: "0: No Reaction").
Logbook entry: "