Toshiba Tosvert VF-S15 - Page 232

E6582175
F-120
6
The override functions calculate output frequency by the following expression:
Frequency command value × (1+ )+Value [Hz] selected with
f660
1) Additive override
In this mode, an externally input override frequency is added to operation frequency command.
[Ex.1: VIA (Reference frequency), VIC (Override input)] [Ex.2: VIB (Reference frequency), VIA (Override input)]
Ex.1:
f660=3 (VIC input), f661=0 (disabled)
Output frequency = Reference frequency + Override (VIC input [Hz])
Ex.2:
f660=1 (VIA input), f661=0 (disabled)
Output frequency = Reference frequency + Override (VIA input [Hz])
Value [%] selected with 
100
Output frequency
Over-ridden frequency
Override
(VI/II input)
0
10V
Over-ridden frequency

Override
(VIC input)
0
10V

VIA input
(Reference
frequency)
(
)
VIB input
(Reference
frequency)
(
)
Output frequency
Reverse run
Forward run

-10V