Eaton PowerXL DH1 Series - Figure 62. Motor Thermal Current It Curve

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Appendix A—Description of parameters

POWERXL DH1 SERIES ADJUSTABLE FREQUENCY DRIVES MN040041EN—August 2019 www.eaton.com

Code Modbus ID Parameter Application RO/RW

P6.1.2 309 Ground Fault 1,2,3 RW

Use this parameter to set the device reaction to a “Ground Fault U-V-W” fault condition. This failure could be

device dependent. The level of fault occurs is based off the total drive current and the

Para ID2158.

0 = No response

1 = Warning

2 = Fault, stop mode after fault according to standard stop mode

3 = Fault, stop mode after fault always by coasting

P6.1.3 2158 Ground Fault Limit 1,2,3 RW

This parameter sets the level of the ground fault protection, this protection is based off the amount of

leakage current that is seen to ground on the output of the drive.

P6.1.4 310 Motor Thermal Protection 1,2,3 RW

Use this parameter to set the device reaction to a “Overtemperature Motor” fault condition. This failure could

be device dependent. Deactivating this protection, i.e., setting parameter to 0, will reset the thermal stage of

the motor to 0%.

0 = No response

1 = Warning

2 = Fault, stop mode after fault according to standard stop mode

3 = Fault, stop mode after fault always by coasting

P6.1.5 311 Motor Thermal F0 Current 1,2,3 RW

This parameter sets minimal current at speed zero without thermal overload.

The default value is set assuming that there is no external fan cooling the motor. If an external fan is used,

this parameter can be set to 90% (or even higher).

Note: The value is set as a percentage of the motor nameplate data, Para ID486 (nominal current of the

motor), not the drive’s nominal output current. The motor’s nominal current is the current that the motor can

withstand in direct on-line use without being overheated.

If you change the parameter Nominal current of motor, this parameter is automatically restored to the default

value.

Setting this parameter does not affect the maximum output current of the drive, which is determined by

Param ID1679 alone.

Figure 62. Motor thermal current it curve

100%

Overload Area

P9.9 = 40%

Cooling

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