172 Rockwell Automation Publication 290E-UM001B-EN-P - June 2012
Chapter 6 Specifications
Bulletin 294E
Electrical Ratings
Power Circuit
Application Three-phase
Number of Poles 3
Input Power Terminals L1, L2, L3
Motor Power Terminals T1, T2, T3
PE (Earth Ground) Terminal 4 PE terminals
Maximum Rated Operating Voltage 400Y/230…480Y/277 (-15%, +10%)
Rated Impulsed Voltage (U
imp
)4 kV
Dielectric Withstand UL: 1960V AC, IEC: 2500V AC
Operating Frequency 50/60 Hz (±10%)
Electrical Ratings — Variable Frequency Drive
Power Circuit
Maximum Rated
Operating Current
Cat. No. Hp (kW)
Input Amps
400V AC, 50 Hz
Input Amps
480V AC, 60 Hz
Output Amps
294_-FD1P5* 0.5 (0.37) 2.0 1.8 1.5
294_-FD2P5* 1.0 (0.75) 3.7 3.0 2.5
294_-FD4P2* 2.0 (1.5) 6.5 5.5 3.6
Overload Protection
Solid-state I
2
T type 150% for 60 s or 200% for 3 s
Trip Class Class 10 protection with speed sensitive response and power-down overload retention function
Overcurrent Protection 200% hardware limit, 300% instantaneous fault
Overvoltage Category III
Reset Mode Automatic or manual
Output Frequency 0…400 Hz (programmable)
Efficiency 97.5% typical
Overvoltage 380…480V AC Input – Trip occurs at 810V DC bus voltage (equivalent to 575V AC incoming line)
Undervoltage 380…480V AC Input – Trip occurs at 390V DC bus voltage (equivalent to 275V AC incoming line)
Control Ride Through Minimum ride through is 0.5 s — typical value is 2 s
Faultless Power Ride Through 10 ms
Carrier Frequency 2…10 kHz, drive rating based on 4 kHz
Speed Regulation — Open Loop
with Slip Compensation
±2% of base speed across a 40:1 speed range
Acceleration/Deceleration
Two independently programmable acceleration and deceleration times. Each time may
be programmed from 0…600 s, in 0.1 s increments.
Maximum Motor Cable Lengths (Reflected
Wave Protection) ➊
10 m (32 ft)(CE application)➋
14 m (45.9 ft) (non-CE application)
Source Brake (EM Brake) Current Maximum load current of 3 A
➊ The reflected wave data applies to all frequencies 2…10 kHz.
➋ For CE compliant installations refer to the recommended EMI/RFI cord grip accessory. For availability of the quick disconnect three-phase shielded power and motor cable contact your local sales
representative for details.
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