Application Guide | iC2-Micro Frequency Converters
Parameter
number:
440 Unit: Hz
Data type: uint16 Access type: Read/Write
P 4.6.3 Warning Current High
Enter the I-high value. When the motor current exceeds this limit, a bit in the drives status word is set. This value can also be
programmed to produce a signal on the digital output or the relay output.
Default value: Size Related Parameter type: Range (Size Related)
Parameter
number:
451 Unit: A
Data type: uint32 Access type: Read/Write
P 4.6.4 Warning Current Low
Enter the I-low value. When the motor current falls below this limit, a bit in the drives status word is set. This value can also be
programmed to produce a signal on the digital output or the relay output.
Default value: 0.00 Parameter type: Range (Size Related)
Parameter
number:
450 Unit: A
Data type: uint32 Access type: Read/Write
P 4.6.7 Motor Thermal Protection
Motor thermal protection can be implemented via a PTC sensor in the motor windings connected to 1 of the analog or digital inputs (P
4.6.8 Thermistor Source). Or via calculation (ETR = Electronic Thermal Relay) of the thermal load, based on the actual load and time. The
calculated thermal load is compared with the rated motor current I
M,N
, and the rated motor frequency f
M,N
. It is possible to activate an
overheat warning or fault.
Default value: 0 [No Protection] Parameter type: Selection
Parameter
number:
190 Unit: –
Data type: enum Access type: Read/Write
Selection number Selection name Selection description
0 No Protection Continuously overloaded motor, when no warning or trip of the
frequency converter is required.
1 Thermistor Warning Activates a warning when the connected thermistor in the motor
reacts to a motor overtemperature.
2 Thermistor Trip Stops (trips) the frequency converter when the connected
thermistor in the motor reacts to a motor overtemperature. The
thermistor cut out value must be >3 kΩ. Integrate a thermistor
(PTC sensor) in the motor for winding protection.
Danfoss A/S © 2024.03 AB413939445838en-000301 / 130R1254 | 137
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