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2.1.2.10.2
Configuration using Control Byte C2
The following values can be configured using the control byte C2 in the
standard configuration.
2.1.2.10.2.1
Frequency Prescaler
The values for the frequency prescaler (Freq_Prescaler) are determined by the
bits Freq_Range_Sel in control byte 2 (C2.0 and C2.1). If both of these bits
are zero (0), the value for the parameter Freq_Div in the configuration table is
used.
Freq_Range_Sel
Freq_Prescaler
(frequency prescaler)
f
p,max
Note
If Freq_Range_Sel = 0 and configuration parameter Freq_Div = 0, the variable
Freq_Prescaler is set to 200.
The moving speed is determined by the pulse frequency (fp), which is
determined by the output data Velocity (D0 and D1) and by the prescaler
Freq_Prescaler.
fp = Velocity * 80 / Freq_Prescaler [Hz]
The acceptable velocity range is 1 ... 25000. The setting for the pulse
frequency in [Hz] is given by selecting Freq_Prescaler = 80.
Note
The bits Freq_Range_Sel may only be modified when the control system is
deactivated! These bits are therefore only accepted when Enable is not set.
WAGO-I/O-SYSTEM 750
I/O Modules
750-671 [Steppercontroller]
'00'
Freq_Div <> 0:
Parameter Freq_Div from
configuration table
Freq_Div = 0:
200
Freq_Div <> 0:
2 MHz / Freq_Div
Freq_Div = 0:
10 kHz
Configuration
'01'
'10'
'11'
80
20
4
25 kHz
100 kHz
500 kHz
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