Siemens SED2 Variable Frequency Drives
The SED2 Variable Frequency Drives are designed specifically for HVAC applications. The SED2 supports a wide variety of digital and analog I/O for diverse control capability. Built-in PID features control pumps and fans, and an integral system protocol can interface P1/N2 networks. Using the SED2 multi-level parameter access, operators can quickly pinpoint relevant data.
• Built-in SBT P1 and JCI N2 (Metasys®) building automation system protocols for easy network integration
• LON, Modbus RTU and BACnet MS/TP Interfaces optional
• Low harmonics design reduces noises and interference eliminates need for filters/reactors in most installations
• Built-in PID for fast and accurate pressure control
• Pump staging for open loop, constant pressure, and constant flow-type applications
• Multi-level program access
• Belt failure detection with or without an external sensor
• Service mode for applications requiring continuous, uninterruptible operation
• Accepts a wide variety of digital and analog I/O types, including direct Siemens Ni 1000 RTD sensor level inputs
• One common interface throughout all power ranges
• Optional Advanced Operator Panel for uploading/ downloading parameters
• Full form C relay contacts for digital outputs
| F-6 Input Voltage and Power Ranges (3 phase) | |||||||
| 208V and 230V to 240V, 3 ac±10% | 1/2 hp to 60 hp | ||||||
| 380V to 480V, 3 ac ±10% | 1/2 hp to 125 hp | ||||||
| 500V to 600V, 3 ac ±10% | 1 hp to 125 hp | ||||||
| Input Frequency | 47 Hz to 63 Hz | ||||||
| Output Frequency | 0 Hz to 150 Hz | ||||||
| Power Factor | ≥0.9 | ||||||
| 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 |
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| PWM Frequency | 2k 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 |
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| Digital Inputs (Sink/Source) | 6: fully programmable and scalable isolated digital inputs, switchable | ||||||
| Analog Inputs | 2: 0 to 10 Vdc, 0/4 to 20 mA, can also be configured as digital inputs or Ni 1000 input | ||||||
| Relay Outputs | 2: configurable 30 Vdc/5A (resistive), 250 Vac/2A (inductive) |
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| Analog Outputs | 2: programmable (0/4 mA to 20 mA, or 0 Vdc to 10 Vdc) |
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| Serial Interface | RS-485 transmission rate: Up to 38.4k Baud Protocols: USS, P1 and N2 |
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| Protection Level | IP20 NEMA Type 1 with protective shield and gland plate installed IP54/NEMA Type 12 |
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| Temperature Ranges | Operating: 14°F to 104°F (–10°C to 40°C) Storage: –40°F to 158°F (–40°C to 70°C) |
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| Humidity | 95% rh, non-condensing | ||||||
| Operational Altitudes | Up to 3280 ft (1000m) above sea level without derating | ||||||
| Protection Features | Under-voltage, Over-voltage, Overload, Ground fault, Short circuit, Stall prevention, Locked motor, Motor over-temperature l2 t PTC, Over-temperature, Parameter PIN protection. |
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| Standards | UL, cUL, CE, C-tick | ||||||
| CE Conformity | Conformity with EC Low Voltage Directive 73/23/EEC | ||||||
| Options | LON Interface, Modbus RTU Interface, BACnet MS/TP Interface, Advanced Operator Panel (AOP) Module, EasyComm Drive Software, PC Kit |
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