Hitachi EH-A14EDR, Руководство по применению

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Chapter 3 Programming
3
– 69
MV_PLS_Start
FB name Description
MV_PLS_Start This function block is to output pulse train for position control. Pulse train stops after specified number
of pulses have been completed.
Name Type I/O Descriptions
xExecute BOOL IN A rising edge starts the execution.
byChannel BYTE IN Channel number (1 to 3)
xMode BOOL IN 0: Without ramp
1: With ramp
dwFrequency DWORD IN Frequency of pulse train outputs (20 to 100,000 [Hz])
dwPulses DWORD IN The number of pulses
0 to 4,294,967,295 (direction disabled)
-2,147,483,648 to 2,147,483,647 (direction enabled)
w
Initial_FQ
WORD IN Initial frequency (20 to 65,535[Hz])
If ramp is not used (xMode=0),
set 0 or leave as no connection.
wAccel_ratio WORD IN Acceleration ratio (1 to 65,535 [Hz/100ms])
wDecel_ratio WORD IN Deceleration ratio (1 to 65,535 [Hz/100ms])
xDone BOOL OUT Execution done successfully
xError BOOL OUT Error occurred
Note: If this function block is executed while pulse train output in operation, all the parameters are overwritten.
Frequency
dwPulses
= area
= distance
dwFrequency
wInitial_FQ
wAccel_ratio
wDecel_ratio
xExecute
Time
Output status
xDone
xMode=1 xMode=0
dwPulses
= area
= distance
Td Ta
dwFrequency [Hz]

wInitial_FQ [Hz]
10

Ta [s]
wAccel_ratio =
dwFrequency [Hz]

wInitial_FQ [Hz]
10

Td [s]
wDecel_ratio =