Rising-Edge Output; Falling-Edge Output - Delta Electronics AC Motor Drive VFD-E User Manual

Appendix D How to Use PLC Function|
Mnemonic
PLS
Operand
Explanations:
When X0=OFF→ON (rising-edge trigger), PLS command will be executed and M0 will send the
pulse of one time which the length is a scan time.
Program Example:
Ladder diagram:
X0
PLS
M0
SET
Timing Diagram:
X0
a scan time
M0
Y0
Mnemonic
PLF
Operand
Explanations:
When X0= ON→OFF (falling-edge trigger), PLF command will be executed and M0 will send the
pulse of one time which the length is the time for scan one time.
D-44
X0~X17 Y0~Y17
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Command code: Operation:
LD
M0
PLS
Y0
LD
SET
X0~X17 Y0~Y17
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Function

Rising-edge output

M0~M159 T0~15
X0 Load A contact of X0
M0 M0 rising-edge output
M0 Load the contact A of M0
Y0 Y0 latched (ON)
Function

Falling-edge output

M0~M159 T0~15
Revision June 2008, 04EE, SW--PW V1.11/CTL V2.11
C0~C7
-- --
C0~C7
-- --
D0~D29
--
D0~D29
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