Parameter seng of the f
eedback system
The s
tandardizaon for funconal safety requires separate parameterizaon of
the connected encoder system for the safety module.
Note the parameter sengs required for this.
The plausibility check rejects ambiguous sengs unl they are correctly
parameterized.
Parameter seng of the motor encoder
Standard device "Base Drive" Safety module "Safe Drive"
Encoder system Parameter Seng Parameter Seng
Resolver at X7 Selecon automac recognion 0x2878:001 2 = resolver
Number of pole
pairs
0x2C43 encoder-dependent 0x2878:003 0x2878:003 = 0x2C43
Encoder at X8 Selecon
0x2C40 1 = SinCos encoder 0x2878:001 1 = SinCos encoder
0x2C40 2 = HIPERFACE® SinCos absolute value
encoder
0x2C40 6 = SSI SinCos absolute value encoder
Number of
increments
0x2C42:001 encoder-dependent 0x2878:002 0x2878:002 = 0x2C42:001
HIPERFACE DSL® (OCT) at
X109
Selecon 0x2DE1:001 10 = HIPERFACE DSL® (OCT) 0x2878:001 3 = HIPERFACE DSL® (OCT)
Scaling of the encoder values
All encoder values are managed in the safety module as 32-bit values. The lower 16 bits
contain the part of one motor revoluon and the higher 16 bits contain the mulple of one
motor revoluon.
Examples
Encoder value Calculaon Result (hex)
¼ motor revoluon 65536/4 = 16384 0x0000'4000
½ motor revoluon 65536/2 = 32768 0x0000'8000
1 motor revoluon 1 * 65536 = 65536 0x0001'0000
2 motor revoluons 2 * 65536 = 131072 0x0002'0000
2½ motor revoluons 2 * 65536 + 65536/2 = 163840 0x0002'8000
All incremental posion v
alues always refer to the motor encoder.
Funconal sa
fety
Safe speed and posion analysis
Parameter seng of the feedback system
115