Siemens 125-3208 operating instructions SED2 VFD Electronic Bypass Operating Instructons

SED2 VFD Electronic Bypass Operating Instructons

	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	6: fully programmable and scalable isolated digital inputs, switchable
(sink/source)
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;
Protection level	IP20: NEMA Type 1 with protective shield and gland plate installed
	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 l2t 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.

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