Toshiba TOSVERT VF-AS3 Instruction Manual page 7

II
Introduction
Thank you for purchasing the Digital Encoder option for TOSVERT VF-AS3 series inverter. This
option is applicable as PG feedback interface for differential line driver output (TIA/EIA RS422) type
encoder.
This manual contains instructions of this option.
• Do not use the encoder out of applicable type specified in this manual.
This can result in damage or accident.
Prohibited
<Description of the Encoder option>
V E C
Firmware compatibility
• VF-AS3 of CPU version "V102" is limited in the maximum frequency of input pulse (160kHz at
maximum).
• VF-AS3 of CPU version "V102" and "V104" are limited in induction motor for closed loop control.
Important
Refer to inverter instruction manual for the check method of the CPU version.
• VF-AS3 of CPU version "V102" and "V104" are limited not to use Z and NZ phase signals.
CAUTION
0 0 8 Z 0
Revision number
Without cable
Encoder option type number
008: Digital encoder (Line driver)
Vector control with sensor compatible
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II. Introduction