4–24

Using Intelligent Input Terminals

Operations and Monitoring

Reset Inverter
The [RS] terminal causes the inverter to

 

 

 

 

 

 

 

 

 

12 ms

 

execute the reset operation. If the inverter is

 

1

 

 

 

 

 

 

minimum

 

in Trip Mode, the reset cancels the Trip state.

[RS]

0

 

 

 

 

 

 

 

 

 

 

 

When the signal [RS] is turned ON and OFF,

 

 

 

 

 

 

approx. 30 ms

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the inverter executes the reset operation. The

Alarm

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

minimum pulse width for [RS] must be 12 ms

signal

0

 

 

 

 

 

 

 

 

 

 

 

or greater. The alarm output will be cleared

t

 

within 30 ms after the onset of the Reset command.

 

WARNING: After the Reset command is given and the alarm reset occurs, the motor will restart suddenly if the Run command is already active. Be sure to set the alarm reset after verifying that the Run command is OFF to prevent injury to personnel.

Option

Terminal

Function Name

Input

 

Description

Code

Symbol

State

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

18

RS

Reset Inverter

ON

The motor output is turned OFF, the Trip Mode

 

 

 

 

is cleared (if it exists), and powerup reset is

 

 

 

 

applied

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF

Normal power-ON operation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Valid for inputs:

C001, C002, C003, C004,

Example (default input configurations

C005

 

 

 

 

shown—see page 3–47):

 

 

 

 

Required settings:

(none)

 

 

 

RS

 

 

 

 

 

 

 

 

 

 

 

L

5

4

3

2

1

PCS

 

Notes:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

•When the control terminal [RS] input is already ON

at powerup for more than 4 seconds, the remote

 

–FE

operator display is “R-ERROR COMM<2>” (the

 

models

display of the digital operator is – – –. However,

 

 

the inverter has no error. To clear the digital

 

 

 

 

operator error, turn OFF the terminal [RS] input

See I/O specs on page 4–6.

and press one of the operator keys.

•Pressing the Stop/Reset key of the digital operator can generate a reset operation only when an alarm occurs.

•A terminal configured with the [RS] function can only be configured for normally open operation. The terminal cannot be used in the normally closed contact state.

•When input power is turned ON, the inverter performs the same reset operation as it does when a pulse on the [RS] terminal occurs.

•The Stop/Reset key on the inverter is only operational for a few seconds after inverter powerup when a hand-held remote operator is connected to the inverter.

•If the [RS] terminal is turned ON while the motor is running, the motor will be free running (coasting).

•If you are using the output terminal OFF delay feature (any of C145, C147, C149 > 0.0 sec.), the [RS] terminal affects the ON-to-OFF transition slightly. Normally (without using OFF delays), the [RS] input causes the motor output and the logic outputs to turn OFF together, immediately. However, when any output uses an OFF delay, then after the [RS] input turns ON, that output will remain ON for an additional 1 sec. period (approximate) before turning OFF.