In Position (Inp); Calculating Electronic Gear Ratio - Siemens SINAMICS V90 Getting Started

You can select one of the setpoint pulse train input forms by setting the parameter p29010:
Parameter
p29010
Note
After modifying parameter p29010, you must perform referencing again because the reference point will lost after p29010
changes.
5.4.4

In position (INP)

When the deviation between the position setpoint and the actual position is within the preset in-position range specified in
p2544, the signal INP (in position) is output.
Parameter settings
Parameter Value range
p2544 0 to
2147483647
p29332 1 to 13
DO configuration
Signal Signal name
type
DO INP
5.4.5

Calculating electronic gear ratio

Encoder specifications
The encoder specifications are shown as follows:
A
M
L
Electronic gear
With the function of electronic gear, you can define the motor revolutions according to the number of setpoint pulses, and
sequentially define the distance of mechanical movement. The minimum travelling distance of load shaft according to one
setpoint pulse is called a length unit (LU); for example, one pulse results in 1 µm movement.
Getting Started
A5E36037886-003, 04/2017
Value
0
1
2
3
Setting Unit
value
40 (default) LU
3
Pin assignment
X8-32 (factory
setting)
Type
Incremental encoder
Absolute encoder
Absolute encoder
Setpoint pulse train input form
Pulse + Direction, positive logic
AB track, positive logic
Pulse + Direction, negative logic
AB track, negative logic
Position window (in-position range)
- Digital output 3 assignment
Setting
1 Number of droop pulses is in the preset in-position
range (parameter p2544)
0 Droop pulses are beyond the in-position range
Description
Description
Resolution
2500 ppr
21-bit single-turn
20-bit + 12-bit multi-turn
Default
✓
75