Delta VFD-B Series User Manual

Chapter 2 Installation and Wiring_VFD-B Series
Revision 10/2005, BE13, SW V4.08 2-31
40 HP to 50 HP (30 to 37kW) 230V (VFD300B23A, VFD370B23A)
75 HP to 100 HP (55 to 75kW) 460V (VFD550B43C, VFD750B43C)
75 HP to 100 HP (55 to 75kW) 575V (VFD550B53A, VFD750B53A)
POWER
ALARM
W/T3S/L2R/L1 T/L3 +2+1 U/T1 V/T2
(173in -lbf)
Screw Torque:
200kgf-cm
POWER
IM
MOTOR
3
CHARGE
Control Terminal
Torque: 4Kgf-cm (3 in-lbf)
Wire: 12-24 AWG (3.3-0.2 mm
2
)
Power Terminal
Torque: 200kgf-cm (173 in-lbf)
Wire Gauge: 2/0 - 3/0 AWG (67.4-85 mm
2
)
Wire Type: Stranded copper only, 75qC

Delta VFD-B Series Specifications

General

Series	VFD-B
Cooling Method	Fan cooling
Overload Capacity	150% for 60 seconds
Braking Unit	Built-in
Control Mode	V/F control, Sensorless Vector Control
Communication	RS-485
Protection Features	Overvoltage, Undervoltage, Overcurrent, Overload, Overtemperature, Short Circuit
Operating Temperature	-10°C to +50°C
Storage Temperature	-20°C to +60°C
Humidity	90% RH (non-condensing)
Altitude	1000m (Derating required above 1000m)