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4.9 TESTER: DESCRIPTION OF THE FUNCTION; TRACTION CONFIGURATION
The most important input or output signals can be measured in real time using the TE-
STER function of the console. The Console acts as a multimeter able to read voltage,
current and temperature. The following definition listing shows the relative measurements :
1) MOTOR VOLTAGE: this is the voltage supplied to the motor by the inverter; it is ex-
pressed as a percentage of the full voltage (which depends of the battery voltage).
2) FREQUENCY: this is the frequency of the voltage and current supplied to the motor.
3) ENCODER: this is the speed of the motor, expressed in the same unit of the fre-
quency; this information comes from the speed sensor.
4) SLIP VALUE: this is the difference of speed between the rotating field and the shaft
of the motor, expressed in the same unit of the frequency.
5) CURRENT RMS: Root Mean Square value of the motor current.
6) TEMPERATURE: the temperature measured on the aluminum heat sink holding the
MOSFET devices.
7) MOTOR TEMPERATURE: this is the temperature of the motor; if the option is pro-
grammed "None" (see chapter 4.4.a) it shows 0°.
8) ACCELERATOR: the voltage of the accelerator potentiometer's wiper (CPOT). The
voltage level is shown on the Left Hand Side of the Console Display and the value in
percentage is shown on the Right Hand Side.
9) FORWARD SWITCH: the level of the Forward direction digital entry FW.
ON / +VB = active entry of closed switch.
OFF / GND = non active entry of open switch.
10) BACKWARD SWITCH: the level of the Reverse direction digital entry BW.
ON / +VB = active entry of closed switch.
OFF / GND = non active entry of open switch.
11) BACKING FORW: status of the inching function (forward direction) input.
ON / +VB = active entry of closed switch.
OFF / GND = non active entry of open switch.
12) BACKING BACK: status of the inching function (backward direction) input.
ON / +VB = active entry of closed switch.
OFF / GND = non active entry of open switch.
13) CUTBACK SWITCH: the level of the Speed Reduction Microswitch.
ON / GND = active entry of speed reduction microswitch.
OFF / +VB = non active entry of microswitch.
14) BRAKE SWITCH: the level of the Pedal Brake Microswitch.
ON / +VB = active entry of Brake pedal Microswitch.
OFF / GND = non active entry of microswitch.