Lenze i55 Series User Manual

Details on encoder maximum frequency monitoring
Aer the HTL encoder has been congured (or if the encoder sengs are changed), the inver-
ter internally calculates the maximum possible number of encoder pulses per second (herein-
aer referred to as "encoder maximum frequency"):
encoder increments max. motor speed [rpm]
encoder maximum frequency [Hz]
revolution 60
= ×
If the calculated encoder maximum frequency is beyond the permissible frequency range of
the digital inputs, monitoring is triggered:
•
The status bit 0 in 0x2C42:007 is set to "1".
•
The warning "Feedback system: speed limitaon" (error code 29573 | 0x7385) is output.
Calculaon example 1:
•
Maximum input frequency of the digital inputs = 100 kHz
•
Encoder resoluon 0x2C42:001 (P341.01) = 1024 increments/revoluon
•
Max motor speed 0x6080 (P322.00) = 3000 rpm
encoder increments 3000 [rpm]
encoder maximum frequency [Hz] 1024 51200 [Hz]
revolution 60
= × =
Result: The encoder maximum frequency monitoring is not triggered because the encoder
maximum frequency is within the permissible frequency range of the digital inputs.
Calculaon example 2:
•
Maximum input frequency of the digital inputs = 100 kHz
•
Encoder resoluon 0x2C42:001 (P341.01) = 4096 increments/revoluon
•
Max motor speed 0x6080 (P322.00) = 3600 rpm
encoder increments 3600 [rpm]
encoder maximum frequency [Hz] 4096 245760 [Hz]
revolution 60
= × =
Result: The encoder maximum frequency monitoring is triggered because the encoder
maximum frequency is beyond the permissible frequency range of the digital inputs.
Parameter Name / value range / [default seng] Info
0x2C42:007 Encoder sengs: Status
0 ... [0] ... 4294967295
•
From version 02.00
Bit coded display of the status of encoder monitoring.
Bit 0 Maximum encoder speed reached 1 ≡ the calculated encoder maximum frequency is beyond the permissi-
ble frequency range of the digital inputs.
Bit 4 No signal detected 1 ≡ a complete failure of the encoder signals has been detected.
Bit 5 Encoder track A or B missing 1 ≡ a failure of only one track (track A or track B) has been detected.
0x2C45
(P342.00)
Encoder-error response
(Enc.error resp.)
•
From version 03.00
Selecon of the response to the triggering of the encoder signal loss
monitoring.
Associated error code:
•
29445 | 0x7305 - Encoder open circuit
0 No response
4Error types ^ 139
1 Warning
3 Fault
0x2C42:001
(P341.01)
Encoder sengs: Increments/revoluon
(Encoder sengs: Enc. Inc/Rev)
1 ... [128] ... 16384
•
Seng can only be changed if the inverter is inhibi-
ted.
•
From version 02.00
Encoder increment.
Carry out seng according to manufacturer data/encoder data sheet.
0x2C42:006 Encoder sengs: Actual velocity
•
Read only: x rpm
•
From version 02.00
Display of the speed currently detected by the encoder.
Addional funcons
Encoder sengs
Encoder monitoring
500

Lenze i55 Series Specifications

General

Brand	Lenze
Model	i55 Series
Category	Inverter
Language	English