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Section
Pulse Output Instructions
492
Mode Specifier (M)
The value of M determines the output mode.
M
Mode
Note
000 Independent mode and up/down pulse output mode
---
002 Independent mode and pulse + direction output mode
---
010 CW (continuous mode and up/down pulse output mode)
CW: Clockwise
011
CCW (continuous mode and up/down pulse output mode)
CCW: Counter-
012 CW (continuous mode and pulse + direction output mode)
CCW: Counter
clockwise
013 CCW (continuous mode and pulse + direction output mode)
In independent mode, the output direction is set when PULS(65) is executed.
Control Words (C, C+1, and C+2)
The 3 control words indicate the acceleration rate, target frequency, and decel-
eration rate. (Each frequency is set in multiples of 10 Hz.)
Word
Function
C
The content of C determines the acceleration rate.
During acceleration, the output frequency is increased by the amount set in
C every 10 ms. C must be BCD from 0001 to 1000 (10 Hz to 10 kHz).
C+1
The content of C+1 specifies the target frequency.
C+1 must be BCD from 0001 to 1000 (10 Hz to 10 kHz).
C+2
The content of C+2 determines the deceleration rate.
During deceleration, the output frequency is decreased by the amount set
in C+2 every 10 ms. C must be BCD from 0001 to 1000 (10 Hz to 10 kHz).
Two output bits are required for pulse outputs controlled by ACC(––).
Up/down pulse output mode
IR 01000 (CW operation)
IR 01001 (CCW operation)
Pulse + direction output mode
IR 01000 (Pulse output)
IR 01001 (Direction specifier)
The pulse output will start when ACC(––) is executed and the output frequency
will be increased every 10 ms by amount specified in control word C. When the
target frequency (specified in C+1) is reached, acceleration is stopped and the
pulse output continues at a constant frequency.
When the pulse output is operating with trapezoidal acceleration and decelera-
tion, the pulse output can be stopped by one of the following methods.
1, 2, 3...
1. Execute the INI(61) instruction with C=003. (Immediate stop)
2. In independent mode, the number of output pulses specified by PULS(65) is
reached. (Decelerates to a stop.)
3. ACC(––) is executed with the target frequency (in C+1) set to 0000.
a) When pulses are being output in independent mode, the output will de-
celerate to a stop at the deceleration rate set when the pulse output was
started.
b) When pulses are being output in continuous mode, the output will decel-
erate to a stop at the specified deceleration rate.
4. Switch the PC to PROGRAM mode. (Immediate stop)
General Operation