750-671 [Steppercontroller]
•
115
Other
Applications
WAGO-I/O-SYSTEM 750
I/O Modules
Control byte C2
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Error_Qu
it
PreCalc 0
0 Acc_Range_Sel Freq_Range_Sel
Select frequency prescaler.
The prescaler Freq_Prescaler can be set for the velocity setting using these two bits when
the module is to be operated via the mailbox without configuration.
The values will only be accepted when Enable is set to 0.
'00': The Freq_Prescaler prescaler is loaded with the parameter Freq_Div from the
current configuration data set.
'01': Freq_Prescaler = 80
Fmax = 25 kHz
'10': Freq_Prescaler = 20
Fmax = 100 kHz
Freq_Range_Sel
'11': Freq_Prescaler = 4
Fmax = 500 kHz
Select acceleration factor.
These two bits are used to set the Acc_Multiplier factor for acceleration.
These values are accepted only when Enable is set to 0.
'00': The factor Acc_Multiplier is loaded with the parameter Acc_Fact from the current
configuration data set.
'01': Acc_Multiplier = 80
T = 760 ms
'10': Acc_Multiplier = 800
T = 76 ms
Acc_Range_Sel
'11': Acc_Multiplier = 8000
T = 7.6 ms
Precalculation for movement sequence
The setpoints are taken from the process image and, where required, a movement sequence
precalculated.
0: Each setpoint that is transmitted via cyclic telegram traffic must be accepted and
processed. Any precalculated movement sequence is rejected. A movement sequence
can be calculated and started using Start.
PreCalc
1: The setpoints from the cyclic telegram traffic are to be ignored and the setpoint saved
for the 0
1 edge used instead. If the starting speed is zero, a movement sequence will
be calculated in advance using this setpoint; this sequence can then be started with the
normal delay using Start.
Error_Quit
Acknowledge error. All errors that are present are acknowledged at the rising edge from 0
to 1. After acknowledgement, the error switches to 0, or a new error is present:
0 Reserved
Status byte S2
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Error PreCalc_
ACK
X Direction On_Spee
d
StandStill Busy
X
Specified speed not yet reached.
0: Specified speed reached.
Busy
1: Specified speed not yet reached.
Drive at standstill, or frequency output at 0.
0: Motor is turning.
StandStill
1: Motor at standstill.
Running speed achieved.
0: The drive has not reached its setpoint speed.
On_Speed
1: The drive has reached its setpoint speed.
Direction of rotation. This bit is valid only when StandStill is 0.
0: Drive moving in the negative direction.
Direction
1: Drive moving in the positive direction.
Status for precalculation for movement sequence
This bit acknowledges the request for a precalculation using PreCalc.
0: Precalculation not yet completed, or no request received.
PreCalc_ACK
1: Precalculation
completed.
Drive error status. An error can be acknowledged using Error_Quit.
0: No error present for the drive.
Error
1: Error present for the drive.
X Reserved
