Siemens SINAMICS V90 Operating Instructions Manual page 172

Control functions
7.3 Pulse train input position control (PTI)
The electronic gear ratio is a multiplier factor to pulse train setpoint. It is realized with a
numerator and a denominator. Four numerators (p29012[0], p29012[1], p29012[2].
p29012[3]) and one denominator (p29013) are used for the four electronic gear ratios:
Parameter
p29012[0]
p29012[1]
p29012[2]
p29012[3]
p29013
These four electronic gear ratios can be selected with the combination of the digital input
signals EGEAR1 and EGEAR2 (refer to Section "DIs (Page 90)"):
Note
After a gear ratio is switched to another one via digital inputs, you need to wait five seconds
and then perform SERVO ON.
Note
The range of electronic gear ratio is from 0.02 to 200.
The electronic gear ratio can be set only at SERVO OFF state. After the setting, you need to
reference the drive again.
172
Range
1 to 10000
1 to 10000
1 to 10000
1 to 10000
1 to 10000
EGEAR2 : EGEAR1
0 : 0
0 : 1
1 : 0
1 : 1
Factory setting Unit
1 -
1 -
1 -
1 -
1 -
Electronic gear ratio
Electronic gear ratio 1
Electronic gear ratio 2
Electronic gear ratio 3
Electronic gear ratio 4
Description
The first numerator of electronic gear
The second numerator of electronic gear
The third numerator of electronic gear
The forth numerator of electronic gear
The denominator of electronic gear
Ratio value
p29012[0] : p29013
p29012[1] : p29013
p29012[2] : p29013
p29012[3] : p29013
SINAMICS V90, SIMOTICS S-1FL6
Operating Instructions, 09/2016, A5E36037884-002