Toshiba TOSVERT VF-FS1 Instruction Manual page 52

Motor speed command setting from the computer
Setting range: 0 to 24000min
The number of motor poles is selected by to F856.
The motor speed command can be set from FA13.
The output frequency is converted from the motor speed command by the following calculation for-
mula.
If the output frequency is more than FH , Inverter return the error to the computer and the motor
speed command is ignored.
Output frequency [0.01Hz] = (Output morter speed x pole [F856] x 10 + 6) ÷ 12
This frequency command is enabled only when the frequency command by communication is en-
abled by setting "serial communication ("4" for Communication Number 0004) by the speed com-
mand selection parameter (
FA00 to "1" (enable)) by the communication command. In this case, frequency commands by
communication will be enabled independent of
frequencies are given the priority if "48: Forced change from communication to local," "52: Forced
operation," or "53: Fire speed" is set by input terminal function selection (
,
Once enabled, this frequency setting will be enabled till disable is set (0 setting), power is turned off
or is reset, or standard shipment setting (
Set a speed by communication hexadecimal in Communication Number FA13. (1 = 1min
Example: F856=2:4pole , Speed command is 1800min-1 (PFA130708) CR
60.00Hz = (1800 x 4 x 10 + 6) ÷ 12
-1
) or setting command priority (Bit 14 of Communication Number
).
51
(communication number: FA13)
setting. However, enabled commands and
) is selected.
E6581393
to
-1
(unit))