M-Maxâ„¢ Series Adjustable Frequency Drive - Eaton Corporation

Serial Interface (Modbus RTU)
Modbus Parameters
The following table shows the Modbus parameters in the M-Max.
RUN Indicates the access during operation (FWD or REV)
X = No parameter change possible,
= Parameter change possible.
Modbus Parameters in the M-Max
Access
130 M-Max Series Adjustable Frequency Drive MN04020003E—April 2011 www.eaton.com
ro/rw Indicates the access via the fieldbus
ro = Read only possible,
rw = Read and write possible.
PNU ID RUN ro/rw Designation Value Range
S2.1 808 � X ro Communication status Format xx.yyy
xx = Number of received faulty messages (0–64)
yyy = Number of received correct messages (0–999)
S2.2 809 � rw Fieldbus protocol 0 = Fieldbus deactivated
1 = Modbus
S2.3 810 � rw Slave address 1–255 1 �
S2.4 811 � rw Baud rate 0 = 300
1 = 600
2 = 1200 (1.2k Baud)
3 = 2400 (2.4k Baud)
4 = 4800 (4.8k Baud)
5 = 9600 (9.6k Baud)
6 = 19200 (19.2k Baud)
7 = 38400 (38.4k Baud)
8 = 57600 (57.6k Baud)
S2.6 813 rw Parity type 0 = None l 2 Stop bits
1 = Even l 1 Stop bit
2 = Odd l 1 Stop bit
S2.7 814 rw Timeout up to fieldbus
error (error 53) if no
master messages are
received although
Modbus is still active.
S2.8 815 rw Reset communication
status
xx and yyy are reset to 0
0 = Not used
1 = 1s
2 = 2s
...255 = up to 255s
0 = Not used
1 = resets parameter S2.1
Drives Control
P6.1 125 rw Control place 1 1 = Control signal terminals (I/O)
2 = Control unit (KEYPAD)
3 = Interface (BUS)
P6.2 117 rw Setpoint Source 0 = Fixed frequency (FF0)
1 = Control unit (KEYPAD)
2 = Interface (BUS)
3 = AI1 (analog setpoint 1)
4 = AI2 (analog setpoint 2)
Note
� When the fieldbus is connected (option, for example, CANopen, PROFIBUS DP, and so on) modified ID numbers and different factory settings are stored here.
Detailed information is provided in the specific manuals of the relevant fieldbus interface module.
FS
(P1.3)
0.000 �
0 �
5 �
0
0
0
1
3