Siemens SIMODRIVE 611 universal - Page 250

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5.6 Net data (PKW and PZD area)
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SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
Encoder x position actual value 1 ––> position actual value
 Resolution: Encoder pulses  2
n
n: Fine resolution
Number of bits for the internal multiplication
The fine resolution is defined via P1042/P1044.
P1042 Encoder 1, fine resolution G1_XIST1
P1044 Encoder 2 fine resolution G2_XIST1
Bit 31
Encoder pulses Fine information
11 10 0
Internal
multiplication
P1042 for G1_XIST1 (encoder 1)
P1044 for G2_XIST1 (encoder 2)
Standard value
Fig. 5-16 Partitioning and settings for Gx_XIST1
 Encoder pulses
– The following applies for encoders with sin/cos 1Vpp:
Encoder pulses = No. of sinusoidal signal periods
– The following applies for resolvers with 12–bit resolution:
Encoder pulses = 1024  No. of pole pairs of resolver
– The following applies for resolvers with 14–bit resolution:
Encoder pulses = 4096  No. of pole pairs of resolver
 The following applies after power up: Gx_XIST1 = 0
 An overflow Gx_XIST1 must be viewed from the higher–level con-
trol
 In the drive there is no modulo view of Gx_XIST1
Gx_XIST1
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