Toshiba TOSVERT VF-AS3 Instruction Manual page 18

▼ In case of communication cable is disconnected, you can trip a follower inverter by using the
communication error detection function ([C606] to [C609]). The leader will not trip even if its
cable is disconnected. To trip the leader, install an interlock from the follower side using an
Important
FL failure relay signal, etc.

Transmission data
The leader side operation command (Run/Stop and Forward/Reverse) and reference value (frequency
command, torque command, output frequency or output torque) are transmitted to the follower side.
These data are sent as UDP packets.
When transmitting frequency command or output frequency, data is converted using [FH: Maximum
frequency] as below.

Details of transmitted data during inverter-to-inverter communication (frequency value)
* Calculation results of 1 (0.01%) or less are rounded down. As a result, a maximum error of 0.01%
occurs.

Conversion details of frequency commands after they are received by followers
The value after conversion below is written to the RAM as a frequency command value.
����(����) =
* Calculation results of 1 (0.01 Hz) or less are rounded down. As a result, a maximum error of 0.01 Hz
occurs.

Parameter setting

Network setting
Please set the parameter [C610] to [C620] so that leader and followers build a single subnetwork.
Example settings
Follower 1
IP address: 192.168.0.20
Subnet musk: 255.255.255.0
Leader frequency value(Hz) ×10000
����(%) =
Leader maximum frequency(Hz)
Reception data(%) × Follower maximum frequency(Hz)
10000
Leader
IP address: 192.168.0.10
Subnet musk: 255.255.255.0
16
(1=0.01%)
(1=0.01Hz)
Follower 2
IP address: 192.168.0.30
Subnet musk: 255.255.255.0
E6582125