Use of TTL encoder with EPM-S602 and zero pulse (Z-track)

What happens?

Error message 20747 (InvalidEncoderSignal) appears

When does the behaviour occur?

A TTL encoder with zero pulse is connected to the EPM-S602. Both the upper range (e.g. 8192 pulses) and the lower range (e.g. 0) of the counter value (CNT_Value) should be limited. The module is used together with an LM_FreeEncoder for FAST Motion. The use corresponds to an absolute singleturn encoder.

The encoder is turned in negative direction.

Which products are affected:

Counter module EPM-S602 (IO1000) in use with FAST Motion

Short-term measures:

The counter value is not limited. The zero pulse is not used.

Evaluation / Recommendations:

It is currently not possible to limit the counter range in both the upper and lower direction. In negative direction the counter value therefore jumps to -2^32. This results in error message 20747.

Hint: There is no change planned for this behaviour.

Automatic Translation

URL for linking this AKB article: https://www.lenze.com/en-de/go/akb/201900351/1/

Meta data

Taxonomy: EPM-S110 Bus Coupler CANopen , EPM-S120 Bus Coupler PROFIBUS , EPM-S130 Bus Coupler EtherCAT , EPM-S131 Bus Coupler EtherCAT , EPM-S140 Bus Coupler PROFINET , EPM-S150 Bus Coupler DeviceNet , EPM-S160 Bus Coupler Modbus TCP , EPM-S4xx-S5xx Analog IO , EPM-S6xx Function modules , EPM-S70x Power supply modules , EPM-S9xx Mounting material , EPM-SM2xx-SM3xx Digital IO , IO System 1000
AKB-ID: 201900351
Last update: 2023/09/09
Category: Version Informations

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