Main Circuit Terminals - Dema Electric D6 Series User Manual

2.4.3 Main circuit terminals

◆ Introduction of main circuit terminals
Terminals symbols
L1/R、 L2/S、 L3/T Input of power supply
U、V、W Inverter output terminal
PD Rectifier output terminals
DC+, DC-
DC+, R+,R- Braking output terminal
PE Grounding terminal
◆Main circuit terminals type 1
Arrangement: L1/R, L2/S, L3/T, DC-, DC+, R-, U, V, W
Applicable power grade: 0.75～5.5 kW
◆Main circuit terminals type 2
Arrangement: DC+, DC-, L1/R, L2/S, L3/T, U, V, W, R+, R-
Applicable power grade: 7.5～18.5kW
◆Main circuit terminals type 3
Arrangement: L1/R, L2/S, L3/T, DC+, DC-, R+, R-, U, V, W
Applicable power grade:22～30kW
◆Main circuit terminals type 4
Arrangement:L1/R, L2/S, L3/T, PD, DC+, DC-, U, V, W
Applicable power grade:37～315kW
Important instructions:
Thrum processing:
Carefully select the strip line length of the wires ,if it is too long it will cause short-circuit, but too short may
Terminals name
To 3-phase power supply(50/60Hz): three phases 380V ac or single-phase
220Vac
Signal-phase input fromL1,L2,L3 impending.
To 3-phase motor
Connect Dc reactor Between PD and DC+ (remove short circuit shim
between PD and DC+) to improve input power factor of the inverter.
Input through external DC power supply, or used to constitute common DC
DC bus +/-
bus system or external connected power consumption brake unit
Braking resistor is connected between R+ and R- or DC+ and R-.
Connect the inverter case to earth.
2 Installation and Wiring
Description
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