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Setting the MX2 communications parameters for MODBUS:
By default, the MX2 is set to accept speed reference and run command signals from the
built-in front panel keypad and external digital input signals.
In order for the MX2 to be controlled entirely over MODBUS, the following parameters
(A0001 and A0002 in bold, below) must be changed. Please be sure to reboot the power
to the inverter after changing these parameters in order for the new settings to take effect.
The sample software application included on the resource CD uses MODBUS settings of
9,600bps (baud rate), 8 data bits, 1 stop bit and no parity, and also assumes that the MX2
has a node number (network address) of 1. Therefore, no other parameters need to be
changed from the defaults, as they already match these settings.
Please refer to section 2-5 of User’s Manual I570-E2-01 if you are unfamiliar with the
operation of the front panel keypad.
