19: PULSE OUTPUT INSTRUCTIONS
SMARTAXIS LADDER PROGRAMMING MANUAL FT9Y-B1382
ARAMP (RAMP with Table)
When the initialization input specified by S2 is turned on, the initial values configured in the WindLDR ARAMP instruction are stored
in the control registers.
When the interrupt input configured by S3 is turned on, the step being executed is aborted and the interrupt step is executed.
The settings for the step being executed, including the preset value and the steady pulse frequency, are stored in the data
registers specified by D1.
The control status, including the pulse output status (output on, output direction, output complete), is set as the operation status
in the internal relays specified by D2.
Note: Configure multiple PULS (pulse output), PWM (pulse width modulation), RAMP (ramp control), and ARAMP (RAMP with table) instructions so
that they do not share the same pulse output port.
However, the ZRN (zero return) instruction can be configured with the same pulse output port as the PULS (pulse output), PWM (pulse width
modulation), RAMP (ramp control), and ARAMP (RAMP with table) instructions.
Note: The ARAMP instruction cannot be used in an interrupt program.
If used, a user program execution error will result, turning on special internal relay M8004 and the ERR LED on the SmartAXIS. For details about the
user program execution errors, see "User Program Execution Errors" on page 4-13.
Note: These instructions cannot be used with FT1A-H40RC and FT1A-B40RC.
Special data registers cannot be designated as S1. Internal relays M0 through M1277 can be designated as D1. Special internal relays cannot be
designated as D1. The first digit of the internal relay number must be set to 0.
The ARAMP instructions output pulses with the frequency change
function according to the information in the frequency table.
When the input is on, pulses are output according to the frequency change
settings stored in the control register settings specified by S1. The pulse
frequency is controlled by combining multiple steps that define the change
time and steady pulse speed. The pulses change frequency at a constant
rate until they reach the steady pulse frequency in the step option settings.
You can select to output pulses at the steady pulse frequency or to change
the frequency at a constant rate until the steady pulse frequency is
reached, after pulses that maintain the frequency in the previous step are
output. The next step is executed when the number of pulses output
reaches the preset value. You can configure a maximum of 18 steps.