IDEX Health & Science VS-606V7 Series - Manual (Page 22)

22
4. WIRING
• Wiring Instructions
(1) Always connect the power input terminals R/L1, S/L2, and T/L3 (R/L1, S/L2 for
single-phase) and power supply via a molded-case circuit breaker (MCCB). Never
connect them to U/T1, V/T2, W/T3.
The single-phase (200V class) inverter can be connected to a 200V 3-phase input.
However, when terminal T/L3 is connected to single-phase, never use the terminal
for other purposes.
Inverter Power Supply Connection Terminals
(2) Connect the motor wiring to terminals U, V, and W on the main circuit output side
(bottom of the inverter).
(3) If the wiring distance between inverter and motor is long, reduce the inverter
carrier frequency. For details, refer to “Reducing motor noise or leakage current
(n46)” on page 68.
(4) Control wiring must be less than 164ft(50m) in length and separate from the power
wiring. Use twisted-pair shielded wire when inputting the frequency signal
externally.
(5) Tighten the screws on the main circuit and control circuit terminals.
(6) Do not connect or disconnect wiring, or perform signal check while the power
supply is turned ON.
(7) For 400V class inverters, make sure to ground the supply neutral to conform to CE
requirements.
(8) A closed-loop connector should be used when wiring to the main circuit terminal.
(9) Voltage drop should be considered when determining wire size.
Voltage drop can be calculated using the following equation:
Phase- to phase voltage drop (V) =
√3
wire resistance (
Ω/
km) x wiring distance
(m) x current (A) x 10
Select a wire size so that voltage drop will be less than 2% of the normal rated
voltage.
200V 3-phase Input Power Supply
Specification Product
CIMR-V7
…… 2 ………
200V Single Input Power Supply
Specification Product.
CIMR-V7
…… B ………
400V 3-phase Input Power Supply
Specification Product
CIMR-V7
…… 4 ………
Connect to R/L1, S/L2, T/L3 Connect to R/L1, S/L2 Connect to R/L1, S/L2, T/L3
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