Zapi COMBI AC1 Manual de usuario descargar pdf (Pagina 16)

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8 INSTALLATION

Install the controller with the base-plate on a flat metallic surface that is clean and

unpainted. Apply a light layer of thermo-conductive grease between the two

surfaces to permit better heat dissipation.

Ensure that the wiring of the cable terminals and connectors is carried out

correctly.

8.1 Connection cables

For the auxiliary circuits, use cables at least 0.5mm² section.

For power connections to the motor and to the battery, use cables having section

of 16 mm² (as a minimum).

For the optimum inverter performance, the cables to the battery should be run

side by side and be as short as possible.

8.2 Contactors

Usually a main contactor is adopted to connect and cut off the battery to the

controller. Depending on the setting of a parameter (see paragraph 12.4.1.10

option AUX VOLTAGE #1):

- the output which drives the main contactor coil is on/off (the coil is driven with

the full battery voltage).

- the output which drives the main contactor coil is switched at high frequency

(1 KHz) with a programmable duty cycle; this feature is useful to decrease

the power dissipation of the contactor coil.

The EN1175 states the main Contactor is not mandatory (under proper

conditions); anyway it is useful to protect the inverter against reverse battery

polarity and to cut off the battery from the power mosfets when a failure in the

three phase bridge occurs.

8.3 Fuses

- Use a 6.3-10A Fuse for protection of the auxiliary circuits.

- For protection of the power unit, use a 180A -250A fuse in the Battery

Positive connection. For special applications or requirements these values

can be reduced.

- For Safety reasons, we recommend the use of protected fuses in order to

prevent the spread of fused particles should the fuse blow.

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Zapi COMBI AC1 Manual de usuario Pagina 16