Operating Instructions

SED2 VFD Operation & Maintenance Manual
80 Siemens Building Technologies, Inc.
Specification Description
Digital inputs 6 (potential-free) inputs (extendable to 8)
Freely programmable and possible changeover (sink, source)
Terminals used: 5, 6, 7, 8, 16, 17
Min. input current: 6 mA (actual: 8 mA) at ≥15V
Logical 0 = <3V, logical 1 = >13V
Max. input voltage: 33V
Analog outputs Number: 2
Can be changed over for 0 to 10V or 0/4 to 20 mA, (programmable
scaling/parameter). Factory setting: 0 to 10V.
Terminals used: 12, 13, 26, 27
Impedance on configuration 0 to 10V: 1K
Ω
Read cycle: 10 ms
Relay outputs 2 programmable relays, 6 contacts.
Relay 1 Terminals: 18, 19, 20
Relay 2 Terminals: 23, 24, 25
Max. contact rating: DC 30V/5 A, (resistive)
AC 250V/2 A (resistive)
Auxiliary supply 24V Galvanically separated, unregulated auxiliary supply (18 to 32V), 100 mA
Terminal 9.
Serial interface RS-485 (RS-232 optional with converter)
Protocols: USS, P1, and N2
Transmission rate: Up to 38.4K Baud (default 9.6K Baud)
Power factor
≥0.7 total PF
≥0.98 displacement
VFD degree of efficiency 96 to 97%
Switch-on current: Less than nominal input current
Braking DC braking, dynamic braking
CE conformity Corresponds to the requirements of the low-voltage guideline 73/23/EEC,
supplemented by guideline 98/68/EEC and EMC.
If installed according to the recommendations issued in this manual, the SED2
satisfies all EMC guideline requirements as defined in the EMC Product Standard
for Power Drive Systems EN 61800-3.