NORD Drivesystems BU0540 - Manual (Page 59)

7 Technical data
BU 0540 GB-1013 59
7. Technical data
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7.1 General Data SK 500E
Function Specification
Output frequency 0.0 ... 400.0Hz
Pulse frequency 3.0 ... 16.0kHz, standard setting = 6kHz (from size 8 and above = 4kHz)
Power reduction > 8kHz for 230V devices, >6kHz for 400V devices.
Typical overload capacity 150% for 60s, 200% for 3.5s
Efficiency of frequency inverter approx. 95% according to size
Insulation resistance
> 5MΩ
Ambient temperature 0°C ... +40°C (S1-100% ED), 0°C ... +50°C (S3-70% ED 10min)
Storage and transport temperature -20°C ... +60 /70°C
Long-term storage See BU 0500
Protection class IP20
Max. installation altitude above sea
level - up to 1000m: no reduction in power
- 1000...4000m: 1%/ 100m power reduction
*Up to 2000m: Overvoltage category 3
* up to 4,000m: Overvoltage category 2, mains input: Overvoltage protection
required
Ambient conditions Transport (IEC 60721-3-2): Vibration: 2M1
Operation (IEC 60721-3-3): Vibration: 3M4; climate: 3K3;
Waiting period between 2 x "Mains on" 60 sec for all devices in normal operating cycle
Protective measures against Overtemperature of the frequency inverter,
overvoltage and undervoltage Short-circuit, earthing fault,
overload
Regulation and control Sensorless current vector control (ISD), linear V/f characteristic
Motor temperature monitoring I
2
t-Motor (UL approval), PTC / Bi-metal switch (no UL approval)
Interfaces (integrated) RS 485 (USS)
RS 232 (single slave) CANbus (except SK 50xE)
CANopen (except SK 50xE)
Modbus RTU (SK 540E and
above)
Electrical isolation Control terminals (digital and analog inputs)
Connection terminals For details of tightening torques for the terminals: see Section 2.2.3 and 2.2.4.
External supply voltage,
control unit SK 5x5E Size 1-4: 18…30V DC, at least 800mA
Size 5-7: 24…30V DC, at least 1000mA
size 8-9: 24…30V DC, at least 3000mA
Analog setpoint input / PID input 2x (size 5 and above: - 10V…) 0...10V, 0/4...20mA, scalable, digital 7.5...30V
Analog setpoint resolution 10 bit based on measurement range
Setpoint consistency analog < 1% digital < 0.02%
Digital input 5x (2.5V) 7.5...30V, R
i
= (2.2k
W) 6.1kW, cycle time = 1...2ms
Additionally for SK 520E and above: 2x 7.5...30V, R
i
= 6.1k
W, cycle time =
1...2ms
Control outputs 2x relay 28V DC / 230V AC, 2A (output 1/2 - K1/K2)
Additionally, with SK 520E/530E: 2x DOUT 15V, 20mA or
Additionally, with SK 535E/545E: 2x DOUT 18…30V (depending on VI), 20mA, or
2x DOUT 18…30V, 200mA Size 5 and above
(Output 3/4 - DOUT1/2)
Analog output 0 ... 10V scalable
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