Delta Electronics VFD-E manual Special Application Commands for the AC Motor Drive, D10

Appendix D How to Use PLC Function

Operands:

D: Device to be rotated n: Number of bits to be rotated in 1 rotation

Explanations:

1.This instruction rotates the device content designated by D to the left for n bits.

2.This instruction adopts pulse execution instructions (ROLP).

Program Example:

When X0 goes from Off to On, the 16 bits (4 bits as a group) in D10 will rotate to the left, as shown in the figure below. The bit marked with ※ will be sent to carry flag M1022.

	X0							D10				K4
									Rotate to the left
			upper bit													lower bit
Carry				1	1	1	1	1	1 1		1	0	0	0	0	0	0	0	0	D10
	flag										16 bits
										After one rotation
			upper bit									to the left					lower bit
1		1			1	1	1 0		0	0	0	0	0	0	0	1	1	1	1	D10
Carry
	flag

D.5.11 Special Application Commands for the AC Motor Drive

API

53

Mnemonic	Operands	Function
DHSCS	S1, S2, D	Compare (for high-speed counter)

Type	Bit Devices					Word devices				Program Steps
OP	X	Y	M	K	H	KnX KnY KnM	T	C	D	DHSCS: 13 steps
S1				*	*				*
S2								*
D		*	*				*	*	*

Operands:

S1: Comparison Value S2: High-speed counter C235 D: Comparison result Explanations:

1.It needs optional PG card to receive external input pulse.

2.To count automatically, please set the target value by using DHSCS command and set M1028=On. The counter C235 will be ON when the count number = target value. If you want to clear C235, please set M1029=ON.

D-58 Revision June 2008, 04EE, SW--PW V1.11/CTL V2.11