AMX AXD-CP4/PB Specifikace stáhnout pdf (Strana 355)

100

101

Protections Ver: 0002 E - 3

1.1 PEAK CURRENT LIMIT AT THE DRIVE

The operator may adjust the value of parameter CP20 -F00307- to limit the current command.

This way, the drive will never attend to current commands exceeding the I

peak

Parameter setting:

CP20

< i

peak

on synchronous motors

Bear in mind that:

on asynchronous motors

Monitoring:

if (I

real

> k * I

IGBT

) => the current will be temporarily cut off

where the value of k is: 1.5 on synchronous motors

1.33 on asynchronous motors.

When exceeding this limit, the drive will cut off the current and when the current

returns below this limit, it will be activated back. Working in this area will cause

undesired current oscillations.

If (I

real

> 1.6 * I

IGBT

) => it will issue error 212

Exceeding this limit would damage the IGBTs.

1.2 TEMPERATURE SENSORS ON THE HEAT-SINK.

There is a temperature sensor (gage) on the drive's heat-sink.

KV10 -F01102- variable provides information about this temperature.

KV10 (F01102) CoolingTemperature

Function: Reading of the heat-sink temperature of the module

Units: Tenths of degree Centigrade

Ipeak I

IGBT

Ipeak

IGBT

1 2 ... 350 351 352 353 354 355 356 357 358 359 360 ... 363 364

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AMX AXD-CP4/PB Specifikace Strana 355

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