EasyManuals Logo

Leeson 174915 User Manual

Leeson 174915
80 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #68 background imageLoading...
Page #68 background image
66
57 SERIAL (SERIAL COMMUNICATIONS)
This parameter is used to activate serial communications. When using this feature, the drive can
communicate with a personal computer (PC), programmable logic controller (PLC), or other external device
that utilizes RS-485 serial communications for control. The serial interface may be used to read present
parameter settings (uploading to the control device), write new parameter settings (downloading from the
control device), monitor present drive activity, and control current drive activity. The following settings are
available:
DISABLE Serial communication function is disabled.
W / TIMER Enables serial communications with a watchdog timer. If there is not serial activity (read
or write) for more than 10 seconds, serial control will turn off and the drive will stop.
W / O TIMER Enables serial communications without a watchdog timer. However, after 10 seconds of
no serial activity, serial control can be turned off by issuing a STOP command from any
source (keypad, terminal strip) other than the serial link.
NOTE 1: The keypad STOP button is always active, regardless of what method (LOCAL, REMOTE, or
SERIAL) is being used to control the drive. The remote STOP input (TB-1) may also be active, depending
on how the drive is programmed.
NOTE 2: If a RESET command (Parameter 65 - PROGRAM) is issued through the serial link, this
parameter will not default back to DISABLE. However, explicitly setting this parameter to DISABLE
through the serial link will cut off communication with the drive.
If developing an application for a serial control device, refer to the RS-232/RS- 485 Modbus
Communications Protocol Specification.
58 ADDRESS (SERIAL ADDRESS)
This parameter is used with the serial communications feature, and is intended for use in a multiple drive
network (RS-485). The serial link will support from 1 to 30 drives, each drive having an address in the
range of 1 to 30. If the serial communications option is not being used, leave this parameter set to the default
setting of 30.
61 PASSWORD (PASSWORD NUMBER)
This feature limits access to the programmable parameters for added security. The correct password must be
entered in order to change any parameter settings.
Pressing the PROG/RUN button on the keypad will call up the PASSWORD prompt. If the correct
password is entered, the PROGRAM MODE is entered and parameters can be changed.
If the wrong password is entered, the drive will flash ERROR: INCORRECT on the display and then return
to the PASSWORD prompt to allow another attempt at entering the correct password.
If the ENTER key is pressed while PASSWORD reads 0000, the MONITOR MODE will be entered (if
Parameter 64 - MONITOR, is set to ON), which will allow the parameters to be viewed (except for
PASSWORD), but not changed.
NOTE 1: The factory default value is 0019.
NOTE 2: Programming PASSWORD to 0000 disables the function. When the password is disabled and
the PROG/RUN button is pressed, the user will enter the PROGRAM MODE directly, without having to
enter a password.

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the Leeson 174915 and is the answer not in the manual?

Leeson 174915 Specifications

General IconGeneral
BrandLeeson
Model174915
CategoryInverter
LanguageEnglish

Related product manuals