Delta Electronics VFD-M manual First or Second

Chapter 4 Parameters

Settings Function Description

Parameter value 11 programs a Multi-Function Input Terminal: M1 (Pr.38), M2 (Pr.39), M3 (Pr.40), M4 (Pr.41) or M5 (Pr.42) for selecting the First or Second Accel/Decel time. (Refer to Pr.10 to Pr.13.)

	Mx "Close": 2nd Accel/Decel
Mx set 11	"Open": 1st Accel/Decel

First or Second

GND

11

Accel/Decel Time

Selection

Frequency

Master

Frequency Pr.10

Pr.11

Pr.12

Pr.13 Pr.10

Pr.13

2nd

1st

2nd

1st

Decel

Accel/

Accel/

Accel

Decel

Decel

Time

ON

Mx-GND

ON

operation

ON

ON

ON

OFF

command

External Base Block

Parameter values 12, 13 program Multi-Function Input

12

(N.O.)

Terminals: M1 (Pr.38), M2 (Pr.39), M3 (Pr.40), M4 (Pr.41) or

(Normally Open Contact

M5 (Pr.42) for external Base Block control. Value 12 is for

normally open (N.O.) input, and value 13 is for a N.C. input.

Input)

B.B.(N.O.)

Mx "Close": Operation available.

setting by 12

B.B.(N.C.)

Mx "Open":Operation available.

by 13

setting

GND

Note: When a Base-Block signal is received, the AC drive will

stop all output and the motor will coast. When base

External Base Block

block control is deactivated, the AC drive will start its

speed search function and synchronize with the motor

(N.C.)

13

speed, and then accelerate to the Master Frequency.

(Normally Close Contact

Allowable max. power loss time

Input)

External

Pr.33

base-block

signal

Speed synchronization

Pr.32=1

Output

detection

Speed search starts with the

frequency

reference value

Output

Low voltage

Pr.34

voltage

Min. base-block time

Capacitor

discharge

Speed search operation

Low voltage

4-36 Revision May 2008, ME14, SW V3.04