DVP-ES2-EX2-SS2-SA2-SX2-Operation Manual

3. Instruction Set
API Mnemonic Operands Function
106 RSTEF Reset Abnormal VFD
Controllers
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 * * *
Operands:
S: Address of communication device n: Operation mode
PULSE 16-bit 32-bit
ES2/EX2 SS2 SA2
SA2
SA2
SX2 ES2/EX2 SS2 SX2 ES2/EX2 SS2
SE SE SE SX2
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) S 1 = Address of VFD-A. Range of S 1 : 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
• S 1 = Address of VFD. Range of S 1 : K0 ~ K255, when S 1 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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