400
Special Instructions
Section 5-28
5-28-12 ACCELERATION CONTROL – ACC(––)
Limitations
Mode 0 of ACC(––) cannot be used if the PC Setup (DM 6611) is set to high-
speed counter mode.
P must be 001 or 002 and M must be 000 to 003.
C to C+3 must be in the same data area.
Description
ACC(––) can be used with the functions listed in the following table.
ACC(––) is used together with PULS(65) to control the acceleration and/or
deceleration of pulses output from port 1 or 2. The 4 available modes are
described briefly below.
The function of the control words varies in the 4 modes, but P always specifies
the port where the pulses will be output and M always specifies the mode. Set
P=001 or 002 to indicate port 1 or 2. Set M=000 to 003 to indicate modes 0 to
3.
Note
Refer to
1-5 Pulse Output Function
for more details.
Mode 0 (M=000)
Mode 0 is used to output a specified number of CW or CCW pulses from port
1 or 2. The acceleration rate, frequency after acceleration, deceleration point,
deceleration rate, and frequency after deceleration can all be controlled.
PULS(65) Operand Settings
PULS(65) must be executed before ACC(––) in order to specify direction, the
total number of pulses to be output, and the deceleration point. The function
of PULS(65) operands are described below. Refer to
5-28-9 SET PULSES –
PULS(65)
for more details.
1,2,3...
1.
The first operand of PULS(65) specifies the output port. Pulses are output
from port 1 when P=001, and from port 2 when P=002.
P
:
Communications port
001 or 002
Ladder Symbols
Operand Data Areas
@ACC(
−−
)
P
M
C
C
:
First control word
IR, SR, AR, DM, EM, HR, LR
M
:
Mode specifier
000 to 003
ACC(
−−
)
P
M
C
Unit/Board
Function
Pulse I/O Board
Pulse outputs 1 and 2
(In order to use ACC(––) mode 0, ports 1 and 2 must be set sim-
ple positioning mode in DM 6611 of the PC Setup. ACC(––) can-
not be used if the mode is set to high-speed counter mode.)
Frequency after
acceleration
Acceleration rate
Frequency after
deceleration
Deceleration rate
Deceleration point
Output stops.
Содержание SYSMAC CQM1H Series
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