Control functions
7.3 Pulse train input position control (PTI)
SINAMICS V90, SIMOTICS S-1FL6
226 Operating Instructions, 04/2019, A5E36037884-007
Benefits of electronic gear (example)
Move the workpiece for 10 mm
Required number of setpoint pulses:
2500 ppr × 4 × (10 mm/6 mm) = 16666
Required number of setpoint pulses:
(10 mm × 1000)/1 LU = 10000
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.
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
These four electronic gear ratios can be selected with the combination of the digital input
signals EGEAR1 and EGEAR2 (refer to Section "DIs (Page 123)").
Note
After a gear ratio is switched to another one via digital inputs, you need to wait 10 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.
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