Nidec Embraco CF01F - Operation; Frequency Control Mode; Frequency Control Operation

4. OPERATION
CAUTION
● The compressor OFF must be done through a proper control signal and never
by de-energizing the Inverter. Excessive inrush current events that happen
under this circumstance may permanently damage the Inverter and/or the
thermostat.
NOTICE
● The CF01F and CF02F Inverters have three different possible control modes;
frequency, drop-in, and serial-mode. Once a control mode is defined, the
product is configured for mass-production.
4.1. Frequency control mode
This option is used when the electronic thermostat controls the VCC's speed (variable
capacity compressor) through a frequency signal sent to the Inverter.
4.1.1. Frequency control operation
The compressor speed will follow the frequency signal sent from the thermostat to the
Inverter, according to the relationship described in Table 9, Table 10, Table 11, Table 12,
Table 13, or Table 14, depending on the compressor model. Compressor speed response to
the input frequency and speed range may vary according to customer definitions.
Input frequency signal [Hz]
VES compressor speed [rpm]
0 to 20
0
20 to 43,3
1300
43,3 to 150
30 x Hz
≥150
4500
Table 9 – VES Compressors (1300-4500 rpm) speed versus Frequency control signal
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