4–30

Using Intelligent Input Terminals

It is possible for the inverter to retain the frequency set from the [UP] and [DWN] terminals through a power loss. Parameter C101 enables/disables the memory. If disabled, the inverter retains the last frequency before an UP/DWN adjustment. Use the [UDC] terminal to clear the memory and return to the original set output frequency.

Option

Terminal

Function Name

Input

 

 

Description

Code

Symbol

State

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

27

UP

Remote Control

ON

Accelerates (increases output frequency) motor

 

 

UP Function (motor-

 

from current frequency

 

 

ized speed pot.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF

Output to motor operates normally

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

28

DWN

Remote Control

ON

Decelerates (decreases output frequency) motor

 

 

DOWN Function

 

from current frequency

 

 

(motorized speed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF

Output to motor operates normally

 

 

pot.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

29

UDC

Remote Control Data

ON

Clears the Up/down frequency memory

 

 

Clear

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF No effect on Up/down memory

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Valid for inputs:

C001, C002, C003, C004,

Example (requires input configuration—

 

 

C005

 

see page 3–47):

Required settings:

A001 = 02

 

 

 

DWN UP

 

 

 

 

 

 

 

 

 

 

 

L

5

4

3

2

1

PCS

 

Notes:

 

 

 

This feature is available only when the frequency

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

command source is programmed for operator

 

 

 

 

 

 

 

 

 

 

 

control. Confirm A001 is set to 02.

 

 

 

 

 

 

 

 

 

 

 

 

This function is not available when [JG] is in use.

The range of output frequency is 0 Hz to the value

in A004 (maximum frequency setting).

See I/O specs on page 4–6.

 

The minimum ON time of [UP] and [DWN] is 50 ms.

This setting modifies the inverter speed from using F001 output frequency setting as a starting point.

Operations and Monitoring