Zapi AC-2 User Manual download pdf (Page 5)

AF2ZP0CE - ACE2 350/450 - User Manual Page - 5/83

1 INTRODUCTION

Within the ZAPIMOS family, the ACE-2 inverter (E stands for evolution) is the

model suitable for control of 4.0 kW to 9.0 kW motors. It has been expressly

designed for battery electric traction.

It is fit for electric truck, material handling: order pickers, reach truck, CB 2,0 tons,

tractors, boom lift and scissors lift.

The ACE-2 can be supplied in three versions:

1) Sensored version: using an Encoder (Sensor Bearing) in the Motor axle is

realised an extremely precise and reliable motor speed and torque control

2) SenseCoils version: using special auxiliary windings inside the motor instead

of an encoder is realised the motor speed and torque control.

3) Sensorless version: using only the phase voltage feedback is implemented

the motor speed and torque control with the Zapi patented sensor-less

control software.

Here the Sensored Version is descripted: it adopts an Encoder integrated in the

Ball Bearing (Sensor Bearing). The Encoder fills up the truck performance,

respect to the Sensorless and Sense Coils versions, with lower minimum speed,

the “stop on the ramp” service and a smoother inversion; on the other hand the

reliability gets penalized by the fragile mechanics and inaccessible position of the

Sensor Bearing.

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Zapi AC-2 User Manual Page 5