8 Installation Guide
www.johnsoncontrols.com Issue Number: 2
Floating supplies
Ungrounded supply configurations
The drive is suitable for use in a circuit capable of delivering not more than 10,000 RMS
symmetrical Amperes at 264Vac RMS maximum (200V drive) or 528Vac RMS maximum (400V
drive).
2.2 Supply imbalance
The maximum supply imbalance: 2% negative phase sequence as per IEC 60146-1-1.