Zapi AC-2 User Manual

- Regenerative release braking based upon deceleration ramps.
- Regenerative braking when the accelerator pedal is partially released
(deceleration).
- Direction inversion with regenerative braking based upon deceleration ramp.
- Regenerative braking and direction inversion without contactors: only the
main contactor is present.
- The release braking ramp can be modulated by an analog input, so that a
proportional brake feature is obtained.
- Optimum sensitivity at low speeds.
- Voltage boost at the start and with overload to obtain more torque (with
current control).
- The inverter can drive an electromechanical brake.
- Hydraulic steering function:
1) traction inverter
- the traction inverter sends a "hydraulic steering function" request to
the pump inverter on the can-bus line (see also OPTION chapter
5.4).
- moreover, if the pump inverter is not present (for ex: tractor
application), the traction inverter can manage an "hydraulic steering
function" by driving a hydro contactor which drive a hydraulic steering
motor (output F9), see also OPTION chapter.
2) pump inverter
- the pump inverter manage an "hydraulic steering function". That is, it
drives the pump motor at the programmed speed for the
programmed time.
- High efficiency of motor and battery due to high frequency commutations.
- Self diagnosis with indication of the fault shown by a flashing led.
- Modification of parameters through the programming console.
- Internal hour-meter with values that can be displayed on the console.
- Memory of the last five alarms with relative hour-meter and temperature
displayed on the console.
- Test function within console for checking main parameters.
2.6 Diagnosis
The microcontroller continually monitors the inverter and carries out a diagnostic
procedure on the main functions. The diagnosis is made in 4 points:
1) Diagnosis on key switch closing that checks: watchdog circuit, current
sensor, capacitor charging, phase's voltages, contactor drives, can-bus
interface, if the switch sequence for operation is correct and if the output of
accelerator unit is correct.
2) Standby diagnosis in stby that checks: watchdog circuit, phase's voltages,
contactor driver, current sensor, can-bus interface.
3) Diagnosis during operation that checks: watchdog circuits, contactor driver,
current sensors, can-bus interface.
4) Continuous diagnosis that check: temperature of the inverter, motor
temperature.
Diagnosis is provided in two ways. The digital console can be used, which gives
a detailed information about the failure; the failure code is also sent on the Can-
Bus.
ADEZP0AE - AC-2 INVERTER - User Manual Page - 9/64

Zapi AC-2 Specifications

General

Brand	Zapi
Model	AC-2
Category	Inverter
Language	English