Toshiba VF010H05 User Manual

The controller can be configured to accept a tachometer 

feedback signal through the 4-20mA input. 

SP6.1 The first screen of setpoint page 6 is TACHOMETER 

SCALE SELECTION. When this is set to 

ENABLED, the user will need to input the 

tachometer scale of the 4-20mA input range.

•  Manual Tach Scale 4.0 mA: The unit is looking 

for an RPM value to assign to the lowest point on 

the scale. This value should represent the motor 

at zero speed.

•  Manual Tach Scale 20.0 mA: The unit is looking 

for an RPM value to assign to the highest point on 

the scale. This value should represent the motor 

at full speed.

SP6.2 Tach Accel Trip Mode Select: When enabled, the 

underspeed or overspeed must be selected for the 

Tach Accel Trip. If underspeed is selected, only 

the Tach Underspeed Trip Point will be used. If 

overspeed is selected only the Tach Overspeed 

Trip Point will be used. 

•  Tach Ramp Time: This is the duration of time 

before the tachometer begins to sample.

•  Tach Underspeed Trip: The minimum value of 

motor RPM which must be achieved before the 

Tach Ramp Time sample is taken.

•  Tach Overspeed Trip: The maximum motor RPM 

allowed when the Tach Ramp Time sample is 

taken.

•  Tach Accel Trip Delay: The duration of time that 

the Tach Accel trip condition must persist before a 

trip is generated.

SP6.3 The controller provides two 4-20mA analog outputs. 

Each analog output is independent of the 

other and can be assigned to monitor different 

functions. The available output ranges are RPM, 

Hottest Non-Stator (Bearing) RTD, Hottest Stator 

RTD, RMS current, % Motor Load, or kW.

•  Analog Output #1 – Select a function from 

the available options to be transmitted from 

the 4-20mA output. Note: If selecting RPM, 

the Tachometer feedback input signal must be 

present in order for the controller to give proper 

output. If selecting RTD, the RTD option must 

be installed and an RTD input signal must be 

present for a proper output to be given from the 

analog output.

•  Analog Output #1 (4 mA): Enter a value that the 

4mA level will represent for the selected function; 

typically this value should be 0.

•  Analog Output #1 (20 mA): Enter a value that 

the 20mA level will represent for the selected 

function.

SP6.4 Analog Output #2 – All of the setpoints and setup 

screens for Analog Output #2 are the same as 

those for Analog Output #1.