Operating Instructions

SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions
52 Siemens Building Technologies, Inc.
Technical Specifications
Table 8. NEMA Type 3R/3RHE Bypass Specifications.
NEMA Type 3R Bypass
Specification
Description
Input Voltage (3 phase)
208V, 3 AC ±10%
*
240V, 3 AC ±10% *
480V, 3 AC ±10%
575V, 3 AC ±10%*
Temperature
Operating: 14°F to 104°F (–10°C to 40°C), HT1 to 122°F (50°C)
Storage: –40°F to 158°F (–40°C to 70°C)
High-Temperature Model
Operating: 14°F to 122°F (–10°C to 50°C)
Storage: –40°F to 158°F (–40°C to 70°C)
Humidity
0 to 95% rh, non-condensing
*Not available in the 3RHE models.
NOTE: For technical specifications on the SED2, see the SED2 VFD Startup, Operation and
Maintenance Manual (125-3201).
Table 9. Drive Specifications.
Drive Specification Description
Input voltage and power ranges
(3 phase)
Amps
200V to 240V, 3 AC ±10%. 1/2 hp to 60 hp (2.3 Amps to 154 Amps)
380V to 480V, 3 AC ±10% 1/2 hp to 125 hp (1.2 Amps to 178 Amps)
500V to 600V, 3 AC ±10% 1 hp to 125 hp (2.3 Amps to 125 Amps)
Input frequency 47 Hz to 63 Hz
Output frequency 0 Hz to 150 Hz
Power factor ≥ 0.9 total, ≥ 0.97 displacement
VFD degree of efficiency 96% to 97%
Switch-on current Less than nominal input current
Auxiliary supply 24V Glavanically separated, unregulated auxiliary supply (18V to 32V) 100 mA
Overload capacity 110% for 60 seconds
Control method Linear, parabolic and programmable V/f; and flux current control low-
power mode
PWM frequency 4k Hz to 16k Hz (adjustable in 2k Hz increments)
Fixed frequencies 15 programmable
Skip frequency bands 4 programmable
Setpoint resolution
0.01 Hz digital
0.01 Hz serial
10 bit analog