Energy Saving - WEG CFW701 Quick Setup Manual

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Energy (%)
120
100
80
60
40
20
0
10 30
Valve
VFD
CFW701 with energy saving enable
PROG DEF
Energy saving (V/F operation mode)
P0407 0.68
1)
P0588 0
P0589 3) 40
4)
P0590 600
P0591 10
Notes: ■ Set as per motor nameplate data.
1) Set to 0% disables the energy saving function.
2) Recommended value. Other values can be used depending on the
application and the motor.
3) Avoid the motor stalling.
4) The histeresis for the minimum speed level is 2 Hz.
12 CFW700 HVAC-R Drives

Energy Saving

Depending on the motor speed and load
conditions, flux is reduced decreasing
losses and therefore efficiency
is improved.
50 70
Flow (%)
User Description
■
Motor rated power factor
60 2) Maximum torque (0 to 85%)
40 2) Minimum voltage level (40 to 80%)
2)
360 Minimum speed (360 to 18,000 rpm)
10 2) Energy saving histeresis
Fans and pumps
applications
90 100