6
6.2
Positioning mode (P0700 = 3, from SW 2.1)
6-354
Siemens AG 2005 All Rights Reserved
SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
6.2.1
Encoder adaptation
The mechanical characteristics of the axis must be specified using the
appropriate parameters to adapt the encoder.
The ”SIMODRIVE 611 universal” drive calculates the ratio between the
travel and the encoder increments from this data, which means that
motion on the load side can be determined.
The following parameters are supplied using this configuration:
P1027.4
= 0: Rotary motor encoder
P1005
Encoder pulses per revolution
(only encoders with sin/cos 1Vpp)
P0236
Spindle pitch or fictitious spindle pitch
P0237:8
Encoder revolutions
P0238:8
Load revolutions
ÍÍÍÍÍÍÍ
ÍÍÍÍÍÍÍ
Encoder with
sin/cos 1Vpp:
P1005
or
resolver:
Pole pair No.
Table
Encoder revolutions
Ü =
Load revolutions
P0237:8
P0238:8
=
Gear
n
Encoder
n
Load
Ü
Spindle
P0236
P0237:8
P0238:8
Rotary motor encoder: P1027.4 = 0:
SIMODRIVE
611 universal
Fig. 6-8
Linear axis with rotary motor encoder (ballscrew)
Encoder with
sin/cos 1Vpp:
P1005
or
resolver:
Pole pair No.
Encoder revolutions
Ü =
Load revolutions
P0237:8
P0238:8
=
Gear
n
Encoder
n
Load
Ü
P0237:8
P0238:8
Rotary motor encoder: P1027.4 = 0:
Pinion (no. of
teeth)
P0236 = No. of teeth
travel/tooth
(pinion) (rack)
P0236
Rack
(travel/tooth
)
SIMODRIVE
611 universal
Fig. 6-9
Linear axis with rotary motor encoder (rack/pinion)
Normalization of
the encoder
signals
Linear axis with
rotary motor
encoder
6 Description of the Functions
01.99
! not 611ue !