Siemens SINAMICS S200 - Page 254

Description of function
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The electronic gear ratio is a multiplier factor to pulse train setpoint. It is realized with
a numerator and a denominator. F
our numerators (p29272[0], p29272[1], p29272[2],
p29272[3]) and one denominator (p29273) are used for the four electronic gear ratios.
These four electronic gear ratios can be selected with the combination of the digital input
signals EGEAR1 and EGEAR2.
Table 9-15 Combination of electronic gear ratio and EGEAR1 and EGEAR2 signals
EGEAR2 : EGEAR1 Electronic gear ratio Ratio value
0 : 0 Electronic gear ratio1 p29272[0] : p29273
0 : 1 Electronic gear ratio2 p29272[1] : p29273
1 : 0 Electronic gear ratio3 p29272[2] : p29273
1 : 1 Electronic gear ratio4 p29272[3] : p29273
Note
The range of the electronic g
ear ratio is from 0.001 to 64000.
The electronic gear ratio can be set either at servo-o󹪜 state or at servo-on state.
• When setting at servo-on state, the pulse train input signal may be lost by the di󹪜erential
counter during the electronic gear ratio changing.
Functions
9.5Fast position control with pulse train input (Fast PTI)
SINAMICS S200 pulse train servo drive system with SIMOTICS S-1FL2
252 Operating Instructions, 11/2023, FW V6.3, A5E51646767B AA