The Keypad and Display Interface Perfect Harmony GENIII/e User’s Manual
3-36 A1A19000405A: Version 1.3
3
Table 3-21: Output Connection Menu (2900)
3.3.3 Stability Menu (3) Options
The Stability Menu (3) consists of the following menu options:
• Input Processing Menu (3000)
• Output Processing Menu (3050)
• Control Loop Test Menu (3460)
The Stability Menu also contains some parameters. These menus and parameters are explained in tables that follow.
Parameter ID Units Default Min Max Description
Filter CT
Secondary Turns
2910 0 0 250
Secondary side turns (assuming primary
turns = 5) of the CTs used to measure
filter capacitor currents.
Filter Inductance 2920 % 0.0 0.0 20.0
Sets the output filter inductor
(impedance) value as a ratio of the base
output impedance of the drive (typically
5%).
Filter Capacitance 2930 % 0.0 0.0 20.0
Sets the output filter capacitor
(admittance) value as a ratio of the base
output admittance of the drive (typically
10%).
Cable Resistance 2940 % 0.0 0.0 50.0
Output cable resistance value as a ratio of
the base output impedance of the drive.
Filter damping
gain
2950 0.50 -5.00 5.00
Controls the gain for damping
oscillations due to output filter. Use a
positive constant (typically 0.5) with
short cable lengths (< 30,000 feet) and a
negative constant (typically -0.5) for long
cable lengths.
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