Installation Check List - Honeywell 3G SmartVFD HVFD3D3A0015 Installation And User Manual

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Table 4.3. Cable Information.
Cable
Impedance
Max. cable length (ft [m])

4.9 Installation Check List

Before completing installation of the unit, inspect the entire installation as detailed
in Table 4.4. Check and mark the items when completed.
Table 4.4. Installation Check List.
Inspect for
Auxiliary
equipment
Cable routing
Control wiring
Cooling clearance
Ambient
conditions
Fusing and circuit
breakers
Grounding
31-00559-01
Terminate each segment at both ends, using either the termination switch (bus
term on/off, see Figure 4.16) on the adjustable frequency drives, or a biased
termination resistor network.
Connect a large surface of the shield to ground, for example with a cable clamp
or a conductive cable connector.
Apply potential-equalizing cables to maintain the same ground potential
throughout the network.
Use the same type of cable throughout the entire network to prevent impedance
mismatch.
Parameter
• Look for auxiliary equipment, switches, disconnects, or input fuses/circuit breakers that may
reside on the input power side of the adjustable frequency drive or output side to the motor.
Ensure that they are ready for full-speed operation.
• Check function and installation of any sensors used for feedback to the adjustable frequency
drive.
• Remove any power factor correction caps on motor(s).
• Adjust any power factor correction caps on the line power side and ensure that they are
dampened.
• Ensure that motor wiring and control wiring are separated or shielded or in three separate
metallic conduits for high-frequency interference isolation.
• Check for broken or damaged wires and loose connections.
• Check that control wiring is isolated from power and motor wiring for noise immunity.
• Check the voltage source of the signals, if necessary.
• The use of shielded cable or twisted pair is recommended. Ensure that the shield is terminated
correctly.
• Measure that top and bottom clearance is adequate to ensure proper air flow for cooling, see
chapter 3.3 Mounting.
• Check that requirements for ambient conditions are met.
• Check for proper fusing or circuit breakers.
• Check that all fuses are inserted firmly and are in operational condition and that all circuit
breakers are in the open position.
• Check for sufficient ground connections that are tight and free of oxidation.
• Grounding to conduit or mounting the back panel to a metal surface is not a suitable
grounding.
Shielded twisted pair (STP)
120 Ω
4,000 ft [1,200 m] (including drop lines)
1,650 ft [500 m] station-to-station
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