Toshiba TOSVERT VF-nC3 User Manual

E6581595
E-15
5
5.9 Upper limit and lower limit frequencies
: Upper limit frequency
: Lower limit frequency
 Function
Programs the lower limit frequency that determines the lower limit of the output frequency and the upper
limit frequency that determines the upper limit of that frequency.
0 100%


Frequency setting signal
* Frequencies that go
higher than

will not
be output.
Upper limit
frequency
0 100%


Frequency setting signal
* Command frequency
cannot be set lower than

.
Lower limit
frequency
Command frequency (Hz) Command frequency (Hz)
[Parameter setting]
Title Function Adjustment range Default setting

Upper limit frequency 0.5 -  (Hz) 

Lower limit frequency 0.0 -  (Hz) 0.0
* Default setting values vary depending on the setup menu setting. Refer to section 11.5.
Note1) Do not set a value 10 times larger than  (base frequency 1) and  (base frequency 2) for .
If a large number is set, the output frequency can only be output at 10 times of minimum value  and
 and a-05 alarm is displayed.
Note2) Output frequency lower than parameter f240 (Starting frequency) is not output. Parameter f240
setting is needed.
Note3) When the stall prevention function operates, the inverter may drive beyond the limit frequency ul or ll.

Toshiba TOSVERT VF-nC3 Specifications

General

Model	VF-nC3
Category	Inverter
Output Frequency Range	0.1 to 400 Hz
Control Method	V/f control, sensorless vector control
Overload Capacity	150% for 60 seconds
Input Frequency	50/60 Hz
Enclosure Rating	IP20
Input Voltage	200-240V AC
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overheat, Short Circuit
Ambient Temperature	-10°C to +50°C
Communication	Modbus RTU
Cooling Method	Fan Cooled
Operating Temperature	-10°C to +50°C
Storage Temperature	-20°C to +60°C
Humidity	5 to 95% RH (non-condensing)
Altitude	Up to 1000m
Braking Unit	Built-in braking transistor (for models up to 22kW), External braking resistor required