Hitachi MICRO-EHV+ Applications Manual page 129

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