Leakage Current
The ground leakage current from the VLT AQUA Drive FC 200 exceeds 3.5 mA. According to IEC 61800-5-1, a reinforced protective
ground connection must be ensured by means of: a min. 0.015 in² [10 mm²] Cu or 0.025 in² [16 mm²] Al PE wire or an additional PE
wire, with the same cable cross-section as the line power wiring, must be terminated separately.
Residual Current Device
This product can cause DC current in the protective conductor. If a residual current device (RCD) is used for extra protection, only an
RCD of Type B (time delayed) may be used on the supply side of this product. See also RCD Application Note MN.90.GX.02.
Protective grounding of the VLT AQUA Drive FC 200 and the use of RCDs must always follow national and local regulations.
2.1.4 Before Commencing Repair Work
1. Disconnect the adjustable frequency drive from line power.
2. Disconnect DC bus terminals 88 and 89.
3. Wait at least the time mentioned above in the section General Warning.
4. Remove motor cable
2.1.5 Special conditions
Electrical ratings:
The rating indicated on the nameplate of the adjustable frequency drive is based on a typical 3-phase line power supply within the specified voltage,
current and temperature ranges, which are expected to be used in most applications.
The adjustable frequency drives also support other special applications, which affect the electrical ratings of the adjustable frequency drive.
Special conditions that affect the electrical ratings might be:
• Single phase applications.
• High temperature applications that require derating of the electrical ratings.
• Marine applications with more severe environmental conditions.
Other applications might also affect the electrical ratings.
Consult the relevant sections in this manual and in the
Design Guide, MG.11.BX.YY
for information about the electrical ratings.
Installation requirements:
The overall electrical safety of the adjustable frequency drive requires special installation considerations regarding:
• Fuses and circuit breakers for overcurrent and short-circuit protection
• Selection of power cables (line power, motor, brake, load sharing and relay)
• Grid configuration (IT,TN, grounded leg, etc.)
• Safety of low-voltage ports (PELV conditions).
Consult the relevant clauses in these instructions and in the
Design Guide
for information about the installation requirements.
2 Safety
VLT HVAC Drive High Power Instruction Man-
ual
2-2
MG.11.F2.22 - VLT
®
is a registered Danfoss trademark
2