5 serial communication setup, Serial communication setup, Drive setup & programming – Lenze MCH Series Drives User Manual

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RG-MHLON

10

Drive Setup & Programming

3.5 Serial Communication Setup

The factory default values of the drive parameters have been set to allow immediate serial communications
(without serial stop/start and serial speed commands). For serial speed and/or serial start/stop control,
modify the setting of Drive Parameter #30 (Control). The drive parameters that are required for serial
communications, including Drive Parameter #30, are described herein.

24 AUTO SOURCE

This parameter must be set to KEYPAD for the drive speed or setpoint to be modified
over the network.

30 CONTROL

This parameter should be set to accommodate the specific application intent:

NORMAL

Serial start/stop and serial speed commands are invalid.

NORM NO HAND Same as NORMAL except the HAND/OFF/AUTO, herein referred to

as H/O/A, is limited to settings of OFF and AUTO.

SERIAL SPEED

Serial start commands are invalid. Serial speed commands are
valid in AUTO.

S SPD/NO HAND Same as SERIAL SPEED except H/O/A is limited to settings of OFF

and AUTO.

SERIAL AUTO

Serial start/stop and serial speed commands are valid in AUTO.
This setting forces the drive to be started via the serial link when
in AUTO.

S AUTO/NO HND Same as SERIAL AUTO except H/O/A is limited to settings of OFF

and AUTO.

The STOP command issued when LonWorks (LON) parameter nviEmrgOvrd is set to EMERG_SHUTDOWN
is accepted regardless of the H/O/A switch position.

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