Delta Electronics VFD-E manual Ldi, Set

Appendix D How to Use PLC Function

Program Example:

Ladder diagram:

Command code:

Operation:

X0

X1

LDI

X0

Load contact B of X0

Y1

AND

X1

Connect to contact A of X1 in

series

OUT

Y1

Drive Y1 coil

Mnemonic

Function

SET

Latch (ON)

Operand

X0~X17

Y0~Y17

M0~M159

T0~15

C0~C7

D0~D29

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9

9

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Explanations:

When the SET command is driven, its specific device is set to be “ON,” which will keep “ON” whether the SET command is still driven. You can use the RST command to set the device to “OFF”.

Program Example:

Ladder diagram:

Command code:

Operation:

X0 Y0

LD

X0

Load contact A of X0

SET

Y1

ANI

Y0

Connect to contact B of Y0 in series

SET

Y1

Y1 latch (ON)

Mnemonic

Function

RST

Clear the contacts or the registers

Operand

X0~X17

Y0~Y17

M0~M159

T0~15

C0~C7

D0~D29

--

9

9

9

9

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Revision June 2008, 04EE, SW--PW V1.11/CTL V2.11 D-37