Preparing the Installation
8
1.5 Cable selection
When you install power and control cables for the inverter, use cables that meet
the required specifications for the safe and reliable operation of the product.
Refer to the following information to assist you with cable selection.
•
Use mains power cables with sufficient cross-sectional area to prevent
voltage drop exceeding 2%.
•
Use copper cables rated at 600 V, 75
℃
for mains power wiring.
•
Use copper cables rated at 300 V, 75
℃
for control circuit wiring.
•
The inverters in the range between 5.5 kW and 22 kW must be grounded
with industrial connector according to IEC60309.
•
The minimum size of the protective earthing conductor shall comply with the
local safety regulations for high protective earthing conductor current
equipment.
•
Only one conductor per terminal should be simultaneously connected.
•
The accessible connections and parts listed below are of protective class 0. It
means that the protection of these circuits relies only upon basic insulation
and becomes hazardous in the event of a failure of the basic insulation.
Therefore, devices connected to these circuits must provide electrical-shock
protection as if the device was connected supply mains voltage. In addition,
during installation these parts must be considered, in relation with electrical
shock, as supply mains voltage circuits.
•
Class 0 circuits include those for:
- RUN/STOP COMMAND: FX, RX, BX, RST, CM
- MULTIFUNCTION INPUT: P1–P7, CM
- ANALOG INPUT: V1, I1
- ANALOG OUTPUT: AO1, AO2
- ENCODER INPUT: PE, GE, A+, A-, B+, B-, PA, PB, Z+, Z-
- ECONDER OUTPUT: RA, GE, RB, GE
- CONTACT: A1, C1, A2, C2, A3, C3, A4, C4, 30A, 30B, 30C
