Festo CMMT-ST-SW, Оригинальное руководство пользователя

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ID Px. Parameters Description
Access read/write
Update reinitialization
3237 Encoder permanently
homed
Unit −
Determines whether the automatic encoder detection shall be
active. The automatic encoder detection attempts to detect the
connected encoder in the switch-on phase. If the automatic
encoder detection is active, various voltage levels are set auto-
matically for the encoder supply in the switch-on phase. Long
encoder lines can lead to the connected encoder not being
detected at the defined voltage level and the connected encoder
being destroyed at a higher supply voltage due to an increase in
the voltage for an encoder type.
This means:
–
0: inactive
– 1: active
Access read/write
Update reinitialization
3250 Activation automatic
encoder detection
Unit −
Determines the gear ratio group of the encoder interface con-
taining the gear ratio and feed constant. The gear ratio and feed
constant can be set individually for each encoder. In the pro-
cess, the gear ratio and feed constant are described by a numer-
ator and denominator, respectively. The gear ratio indicates the
transmission ratio between the drive side (numerator) and out-
put side (denominator). The feed constant determines the ratio
between a motor revolution and the feed in the user unit on the
output.
3 gear ratio groups are available for selection
è
Fig.37
Access read/write
Update reinitialization
3251 Selection gear ratio
group
Unit −
Specifies the 24 bit standardised position of the encoder. In
case of an encoder with a resolution of 18 bits, the increments
are multiplied at a factor of e.g.64 for standardisation. Encoder
resolution of 18 bits: 262143 incr/rev
Access read/−
11600 Standardised encoder
position
Update effective immediately
Product configuration
156 Festo — CMMT-ST-SW — 2019-02