gefran VDI100 Series User Manual

(3) Turn power on.
(4) Set the required communication parameters (09-00) via the keypad.
(5) Turn off power to the inverter and wait until keypad is completely off.
(6) Turn power on
(7) Start communication between controller and inverter.
Modbus (485) communication architecture
(1) Modbus communication conguration uses a master controller (PC, PLC), communicating to a maximum of
31 inverters.
(2) The master controller is directly connected to the inverter via the RS-485 interface. If the master controller
has a RS-232, a converter must be installed to convert signals to RS-485 to connect the master controller to
the inverter.
(3) A maximum 31 inverters can be connected to a network, following the Modbus communication standard.
Communication Parameters:
09-00: Inverter station addresses: Range 1-31
09-02: RS-485 communication baud rate setting
= 0: 1200 bps (bits / second)
= 1: 2400 bps
= 2: 4800 bps
= 3: 9600 bps
= 4: 19200 bps
= 5: 38400 bps
09-03: Stop bit selection
= 0: 1 stop bit
= 1: 2 stop bits
09-04: Parity selection of RS-485 communication
= 0: No parity.
= 1: even parity.
= 2: odd parity.
09-05: Communication Data Bit Selection
= 0: 8 bits data
= 1: 7 bits data
09-06: RS-485 communication error detection time
09-07: Stop selection of RS-485 communication failure
= 1: Deceleration to stop by deceleration time 00-15
= 2: Coast to stop
= 2: Deceleration to stop using the deceleration time of 00-26 (emergency stop time)
= 3: Continue to operate (only shows a warning message, press the stop button to stop operation)
09-08: Comm. fault tolerance count
When the number of communication errors exceeds the value set in parameter 09-08 the inverter will display
the comm. Fault alarm.
09-09: Wait time of inverter transmission (09-09).
Sets the inverter response delay time. This is the time between the controller message and the start of the
inverter response message. Refer to gure 4.4.76. Set the controller receive time-out to a greater value than
the wait time parameter (09-09).
Figure4.4.76CommunicationMessageTiming
09-09 setting
24 bits long
Inverter to Master
Master to Inverter
t
Command Message
Response Message
212 VDI100 • Instruction manual

gefran VDI100 Series Specifications

General

Brand	gefran
Model	VDI100 Series
Category	Inverter
Language	English