3. Instruction

Set

API

Mnemonic

 

 

Operands

Function

 

 

 

Controllers

 

106

RSTEF

 

 

 

 

 

Reset Abnormal VFD

 

ES2/EX2 SS2 SA2 SX2

 

 

 

 

 

 

SE

 

 

Type

Bit Devices

 

 

 

Word devices

 

 

 

Program Steps

 

OP

 

X

Y

M

S

K

H KnX KnY KnM KnS T C

D

E

F

RSTEF: 5 steps

 

 

S

 

 

 

 

 

*

*

 

*

 

 

 

 

 

n

 

 

 

 

 

*

*

 

*

 

 

 

 

 

 

 

 

 

 

 

 

 

PULSE

 

16-bit

 

32-bit

 

ES2/EX2

SS2

SA2

SX2

ES2/EX2

SS2

SA2

SX2

ES2/EX2

SS2

SA2

SX2

SE

SE

SE

Operands:

S: Address of communication device

n: Operation mode

Explanations:

1.M1177 = OFF (Default), RSTEF instruction supports COM2(RS-485).

2.M1177= ON, RSTEF instruction supports COM2(RS-485), COM3(RS-485).

3.M1177 has to be set up in advance for selecting the target model of VFD. When M1177 = OFF (Default), RSTEF instruction supports Delta’s VFD-A inverter. When M1177 = ON, these instructions support other models of VFD inverters, e.g. VFD-B, VFD.

4.There is no limitation on the times of using RSTEF instruction, however only one instruction can be executed on single COM port at a time.

5.If rising-edge (LDP, ANDP, ORP) or falling-edge (LDF, ANDF, ORF) contacts are used before RSTEF instruction, sending request flags M1122 (COM2) / M1316 (COM3) has to be enabled in advance for obtaining correct operation.

6.For detailed information of associated flags and special registers, please refer to RS instruction.

7.M1177 = OFF, only Delta VFD-A is supported and the definition of each operand is:

a)S1 = Address of VFD-A. Range of S1: K0 ~ K31

b)n = Communication mode. Range: K1 ~ K2. n = 1: communicate with VFD at designated

address. n = 2: communicate with all connected VFDs. .

c)RSTEF is a handy communication instruction used for reset when errors occur in AC motor drive operation.

d)The feedback data from the peripheral equipment will be stored in D1070 ~ D1080. When n = 2, PLC will not receive any data.

8.M1177 = ON, other Delta VFDs are supoported

S1 = Address of VFD. Range of S1: K0 ~ K255, when S1 is specified as K0, PLC will broadcast to all connected VFDs

Program Example: COM2 (RS-485)

Communication between PLC and VFD-B series AC motor drives (ASCII Mode, M1143 = OFF). Retry when communication time-out occurs.

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Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual Reset Abnormal VFD