Unusual Diagnosis; Option Error; Disconnection Error Of Network Cable - Toshiba TOSVERT VF-AS1 Instruction Manual

5. Unusual diagnosis

The VF-AS1/PS1 is able to install two kind options. The option error message is
depended on the position of the option under or panel side.

5.1. Option error

The error message is displayed when there is hardware error, software error or lose of
connection of wire.
▼Display of trip information
e-23 (Error code : 55) : Add-on option 1 error
(This error is displayed at the time the bottom side option has an error or only one
option is installed and has an error.)
e-24 (Error code : 56) : Add-on option 2 error
(This error is displayed at the time the two-units are installed and the upper side option
has an error.)

5.2. Disconnection error of network cable

▼Display of trip information
err8 (Error code : 27) : Communication error
▼Related parameter
[f850 Disconnection detection extended time]
The range : 0.0 to 100.0 sec.
The waiting time from when a network error occurs to when a communication error
"err8" is displayed can be adjusted. If a network error continues past the time set in
f850, it is recognized as a communication error and "err8" is displayed.
When normal communication returns during the set time, a communication error is not
displayed and operation is continued.
[f851 Inverter operation at disconnection]
The range 0: Stop and Communication release
The action of the inverter when the communication error occurred can be specified.
[f852 Preset speed operation selection]
Setting range
(cmod, fmod)
1: None (continued operation)
2: Deceleration stop
3: Coast stop
4: Network error (err8 trip)
5: Preset speed operation (by f852 setting)
0：None
1 to 15：Preset speed operation (by parameter setting)
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