Toshiba TOSVERT VF-AS1 Instruction Manual page 197

1) 2-wire RS485
The 2-wire RS485 device on the operation panel and the 4-wire RS485 device on the control circuit terminal block
are intended for data communications between inverters. To use an optional part for the RS485 device, it should
be connected to the communication connector (RJ45) on the operation panel. Through the 2-wire RS485 device
and a USB device (optional), the inverter can be linked to a computer.
Here are the parts optionally available for the 2-wire RS485 device.
• Optional USB-to-Serial conversion unit (Model: USB001Z)
Inverter-to-RS485/USB device interconnect cable (Model: CAB0011 (1m), CAB0013 (3m), CAB0015 (5m))
RS485/USB device-to-computer interconnect cable. Use a commercially available USB1.1 or 2.0 cable. (Type: A-
B, Cablelength: 0.25~1.5m)
• Optional LED Remote Keypad (Model: RKP002Z)
Communication cable (Model:CAB0011 (1m), CAB0013 (3m), CAB0015 (5m))
• Optional LCD Remote Keypad (Model: RKP004Z)
LCD special cable (Model:CAB0071 (1m), CAB0073 (3m), CAB0075 (5m), CAB00710 (10m))
Note: Do not connect the cable (CAB0011, 0013 or 0015) from the communication device to the optional LCD
Remote Keypad. Or the inverter or the optinol LCD Remote Keypad could be damaged.
Setting for issuing run/stop commands from an external control device
Title Function
Command mode selection

Note:When parameter  (setting for communications between inverters) is used, the setting =
cannot be used for slave inverters.
Setting for issuing speed commands from an external control device
Title Function
Frequency setting mode

selection 1
Communication parameters (2-wire RS485)
These parameters allow you to change the communication speed, parity check setting, inverter number,
communication error trip timer setting, etc. from the operation panel or an external control device.
Title
Communication speed (2-wire RS485)

Parity

(common to 2-wire RS485 and 4-wire RS485)
 Inverter number (common)
Communications time-out time

(common to 2-wire RS485 and 4-wire RS485)
Communications time-out action *

(common to 2-wire RS485 and 4-wire RS485)
Send waiting time

(2-wire RS485)
Master/slave setting for Inverter-to-inverter
 communications
(common to 2-wire RS485)
 Protocol selection (2-wire RS485)
Adjustment range
~
Adjustment range
~
Function
:9600 bps,:19200 bps, :38400 bps
:Non parity,:Even parity
:Odd parity
~
:OFF
~ sec.
Setting
:Normal communications
~ sec.
:Slave (issues a 0Hz command if
:Slave (continues operation if
:Slave (trips for emergency stop if
:Master (sends a frequency
:Master (sends an output frequency)
:Master (sends a torque command)
:Master (sends an output torque
:TOSHIBA, :MODBUS
F-81
Default setting

(Terminal input enabled)
Default setting

(RR/S4 input)
Adjustment range
2-wire 4-wire
RS485 RS485
No action No action

 Alarm No action
 Trip No action
 No action Alarm
Alarm Alarm

Trip Alarm

No action Trip

Alarm Trip

 Trip Trip
something goes wrong with the
master)
something goes wrong with the
master)
something goes wrong with the
master)
command)
command)
E6581445
Example of setting

(2-wire RS485)
Example of setting

(2-wire RS485)
6
Default setting







