Zapi SEM1 - Direction Orientation; Functional Features

Page 7SEM1
2.4 DIRECTION ORIENTATION
Machines with tiller and belly-switch follow the prEN 1175 directive. This directive es-
tablishes that the direction microswitches (MA and MI) connections must match the
following drawing.
2.5 FUNCTIONAL FEATURES
- Speed control.
- Optimum sensitivity to low speeds.
- Quick inversion: it is activated if the belly-switch is closed when travelling in the
forward direction.
- Regenerative braking based upon adjustable deceleration ramps.
- Three different kinds of braking: release braking, inversion braking, speed limit braking.
- Speed control on a descent: the motor speed follows the accelerator, the chopper
automatically brakes if the motor speed overcomes the accelerator set point; this
provides optimum performance on a gradient.
- Start on a ramp without roll back even without the electric brake.
- Programmable anti roll-back: with the key on, the chopper controls the motor speed;
if the motor is moving, the chopper automatically brakes and keeps the motor at a
very low speed during the descent (this function is very useful for the safety even
without the driver).
- The chopper controls also an electromechanical brake.
- Self diagnosis with indication of the fault through a flashing led.
- Parameters modification via console ( see the specific description).
- Internal hour-meter. The value can be displayed on the console.
- Memory of the last five alarms, with relative hour-meter and temperature displayed
on the console.
- Console tester for checking the main parameters (see the specific description)
- High efficiency of motor and battery due to high frequency commutation.