Nord Drivesystems SK 300P Series - 7 Technical Data; General Frequency Inverter Specifications

7 Technical data
BU 0800 en-4521 131
7 Technical data
7.1 General frequency inverter data
Function Specification
Output frequency
0.0 … 400.0 Hz
Pulse frequency
3.0 … 16.0 kHz, factory setting = 6 kHz
Power reduction > 6 kHz for 400 V devices
Typical overload capacity
150% for 60 s, 200% for 3.5 s
Frequency inverter efficiency
> 95% according to size
Energy efficiency
IE2,  7.2 "Technical data for determining the energy efficiency level"
Insulation resistance
> 5 MΩ
Operating / ambient temperature
-30 °C … +40 °C (S1 - 100 % ED), -30 °C … +50 °C (S3 - 70 % ED)
For detailed information (including UL values) on individual device types and
operating modes, see  7.2.1 "Electrical data 3~400 V"
Storage and transport temperature
-30°C … +60°C
Long-term storage
 9.1 "Maintenance information"
Protection class
IP55 (without painting), IP66 (with painting)
Max. installation altitude above sea
level
up to 1000 m
No power reduction, overvoltage category 3
1000...2000 m:
1% / 100 m power reduction, overvoltage category 3
2000...4000 m:
1% / 100 m power reduction, overvoltage category 2, external
overvoltage protection required at mains input
Ambient conditions
Transport (IEC 60721-3-2:)
Mechanical: 2M1
Operation (IEC 60721-3-3):
3K3
Environmental protection
Energy-saving function
 1.7 "Standards and approvals", siehe P219
EMC
 2.6.5 "Electrical connection of power unit"
RoHS

Protective measures against
Overtemperature of the frequency inverter
Overvoltage and undervoltage
Short circuit, earth fault,
overload
Motor temperature monitoring
I
2
t motor, PTC/bimetallic switch
Regulation and control
Sensorless current vector control (ISD), linear V/f characteristic curve, VFC
open-loop, CFC open-loop, CFC closed-loop
Waiting period between two mains
switch-on cycles
60 s for all devices in normal operating cycle
Interfaces
Standard
RS485 (USS) (for parameterisation units only)
RS232 (single slave)
Option
Bluetooth via NORDAC ACCESS BT
Electrical isolation
Control terminals
Electrical connection
Power unit