GE AF-650 GP Programming Manual page 111

3.9.4 SP-4# Energy Savings
Parameters to configure the energy optimization level in both the Variable Torque and Energy Savings modes.
SP-40 VT Level
Range:
66 %* [40 - 90 %]
3
SP-41 Energy Savings Min. Magnetization
Range:
40. %* [40 - 75 %]
SP-42 Energy Savings Min. Frequency
Range:
10 Hz* [5 - 40 Hz]
SP-43 Motor Cosphi
Range:
0.66* [0.40 - 0.95]
3.9.5 SP-5# Environment
Parameters to enable/disable the optional factory installed A1/B1 RFI Filter, and Fan Monitor and to configure an output filter if installed.
SP-50 RFI Filter
Option:
[0] Off
[1] * On
SP-52 Fan Operation
Select minimum speed of the main fan.
Select Auto [0] to run fan only when internal temperature in frequency converter is in range 35° C to approx. 55° C.
Fan runs at low speed below 35° C, and at full speed at approx. 55° C.
Option:
[0] * Auto
[1] On 50%
[2] On 75%
[3] On 100%
110
Function:
Enter the level of motor magnetisation at low speed. Selection of a low value reduces energy loss in the
motor, but also reduces load capability.
This parameter cannot be adjusted while the motor is running.
Function:
Enter the minimum allowable magnetisation for Automatic Energy Savings. Selection of a low value re-
duces energy loss in the motor, but can also reduce resistance to sudden load changes.
Function:
Enter the minimum frequency at which the Automatic Energy Savings is to be active.
Function:
The Cos(phi) setpoint is automatically set for optimum Automatic Energy Savings performance. This pa-
rameter should normally not be altered. However in some situations it may be necessary to enter a new
value to fine-tune.
Function:
Select Off [0] only if the frequency converter is fed by an isolated mains source, i.e. from a special IT mains
source.
In this mode, the internal RFI filter capacitors between chassis and the mains RFI filter circuit are cut-out
to avoid damage of the intermediate circuit and to reduce the ground capacity currents according to IEC
61800-3.
Select On [1] to ensure that the frequency converter complies with EMC standards.
Function:
AF-650 GP Programming Guide