Delta 1.07 VFD-D D - Manual (Page 18)

Chapter 2 Wiring|DD Series
2-5
2-2 Main Circuit Terminal
Main Circuit Terminal
U/T1
V/T2
W/T3
IM/PM
Motor
E
E
L1
L2
L1
L2
Wire Gauge Torque Wire Type
14-12 AWG.
(2.075-3.332mm 2 )
5.2kgf-cm (4.5in-lbf) Stranded copper only，75℃
Terminal Symbol Explanation of Terminal Functions
L1, L2 AC line input terminals
U/T1, V/T2, W/T3 AC drive output terminals for connecting 3-phase induction motor
E Earth connection, please comply with local regulations.
Mains power terminals：
; Power can be connected to either L1 or L2.
; Please make sure to fasten the screw of the main circuit terminals to prevent
sparks which is made by the loose screws due to vibration
; Please use voltage and current within the regulation shown in Appendix A.
; For the AC motor drive built-in with a general type of GFCI (Ground Fault
Circuit Interrupter), it is suggested to select a current sensor with sensitivity
of 200mA, and not less than 0.1-second detection time to avoid nuisance
tripping. When selecting a GFCI that is specially designed for an AC motor
drive, please select tje current sensor with sensitivity of 30mA or above.
; Please use the shield wire or tube for the power wiring and ground the two
ends of the shield wire or tube.
Do NOT run/stop AC motor drives by turning the power ON/OFF. You should
use control circuit terminal OD, CD or the OD on the keypad (or CD) and
STOP key to control running or stopping of the motor drive. If you still need
to run/stop AC drives by turning power ON/OFF, it is recommended to do so
only ONCE per hour.
Output terminals for main circuit：
; When it needs to install the filter at the output side of terminals U/T1, V/T2,
W/T3 on the AC motor drive. Please use inductance filter. Do not use
phase-compensation capacitors or L-C (Inductance-Capacitance) or R-C