TECO N3 Series - Page 82

N3 Drive Operations Manual
(Advanced) Parameter Details; A163 – A172 79
A163: Assigns a node number to a specific inverter when networking multiple inverters using RS485 protocol.
1.) RS485 Communication:
A. 1 to 1 control: A host controller controls one inverter, set A163 = 001 to 254.
B. 1 to multiple inverter control: A host controller can control up to a maximum of 32 inverters. Use parameter
A163 to set the communication address (001 - 254). When the communication address = 000, the inverter
is controlled by serial communication regardless of the A163 setting.
2.) RS-232communication: (an RS232 interface is required)
1 to 1 control: A host controller controls one inverter, set A163 = 1 to 254.
Notes:
a. The baud rate A164 and the communications format A165, A166 and A167 of the host controller must match
that of the inverter.
b. The inverter will validate the modified parameters after the parameters are modified by the host controller.
c. For the communication protocol, refer to the N3 MODBUS communication protocol
manual.
d. Parameters A163 – A167 cannot be changed via the communication module.
1.) Parameters A168 – A172 are automatically set (factory default) with the HP code A175.
(Refer to Appendix B)
2.) If A000 is set to = 0 or 1(vector control mode), on power up, set A006 =1 (auto-tuning). The motor operates with
the inverter to perform auto tuning. Once the motor stops, auto tuning is completed and the inverter will write the
internal parameters of the motor to A168 - A172. A006 will automatically be reset to 0 and the display will read
END.
Note: Do not perform auto-tuning with the mechanical load connected to the motor.
3.) Auto tuning must be carried out whenever the motor is changed. If the internal parameters are known,
they can be input directly to A168 - A172.
4.) Parameters A168 – A172 are only effective in when A000 = 0 or 1 (vector control mode).
5.) Only perform the auto tune when the inverter and motor are not connected.
A163
RS485 Communication Station
Drop Number
1 - 254
A164
Baud Rate setting (bps)
0000: 4800
0001: 9600
0002: 19200
0003: 38400
A165
Stop Bit Selection
0000: 1 stop bit
0001: 2 stop bit
A166
Parity Selection
0000: no parity
0001 even parity
0002: odd parity
A167
Data Format Selection
0000: 8 bit data
0001: 7 bit data
A168
Stator Resistance(Ohms)
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A169
Rotator Resistance(Ohms)
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A170
Equivalent Inductance(mH)
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A171
Magnetized Current(Amps AC)
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A172
Ferrite Loss Conduction (gm)
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