7
5000
4000
3000
4500
3500
2000
2500
1000
1500
0
0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170
500
input (Hz)
output (RPM)
ENG
ir33+ wide Fullmotion - +040000055 - rel. 1.0 - 09.06.2014
Compressor speed will follow the input frequency signal, according to the following relationship:
Compressor Speed (rpm)~ Frequency Signal (Hz) x30
Fig. 1.c
Discontinuities in driving frequency (red boxes above) are managed directly by the inverter. They are unknown
by the controller.
Inverter
The following diagram shows how and where to connect the inverter. Please see the Embraco user manual for
instructions on how to correctly connect the inverter and compressor.
Fig. 1.d
CN101
CN102
AC power
connectors
CN104
Earth safety connectors
CN100
OLP connectors
CN103
EMI connectors
CN400
Motor connectors
CN700
Input of frequency control signal
CN600
Serial communication