Siemens SED2 VFD Electronic Bypass Option 125-3208 User Manual
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SED2 VFD Electronic Bypass Operating Instructons
50
Siemens Building Technologies, Inc.
Table 6. SED2 Specifications (Continued).
Drive Specifications
Description
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
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)
Analog outputs
2: programmable (0/4 to 20 mA)
Serial interface
RS-485 Transmission rate: Up to 38.4k Baud
Protocols: Siemens, P1 and Johnson, N2;
IP20: NEMA Type 1 with protective shield and gland plate installed
Protection level
IP54: NEMA Type 12 (400V and 500V series only)
Temperature ranges
Operating: 14°F to 104°F (–10°C to 40°C)
Storage: –40°F to 158°F (–40°C to 70°C)
Humidity
95% rh, non-condensing
Operational altitudes
Up to 3280 ft (1000m) above sea level without de-rating
Protection features
Under-voltage, Over-voltage, Overload, Ground fault, Short circuit, Stall
prevention, Locked motor, Motor overtemperature l
2
t PTC, Over-temperature,
Parameter PIN protection
Standards UL,
cUL
NOTE:
SED2 Compliance with EN61000-3-12:
From September 1st, 2005 all electrical apparatus covered by the EMC directive will have to
comply with EN61000-3-12 “Limits for harmonic currents produced by equipment connected to
public low voltage systems with input currents > 16A and =< 75 A per phase”.
Siemens variable speed drives of the product range SED2 (Micromaster 436) fulfil the
requirements of the EN 61000-3-12 (without the need for external line reactors) regarding the
THD values of Table 3 under the pre condition of Rsce > 190. The required PWHD values will
not be achieved. Due to this fact it is recommended to apply for connection approval at the local
electricity board.
The local electricity board will evaluate among many other data the content of the 5th harmonic
current and the Line Power Factor "Lambda”, which is the ratio of active power and apparent
power.
Siemens frequency inverters are optimized in design and operation characteristics regarding
energy efficiency and less interference with line supplies.