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Systemair NOVA drive 370
Protection
Protection functions - Check Table 9
Module tem-
perature pro-
tection
Derate ºC 90 ºC
Shutdown 100 ºC
Circuit board
temperature
protection
(enclosed tem-
perature)
Derate ºC 75 ºC
Shutdown 80 ºC
Motor control method - V/F control
Output overcurrent shutdown (by
software)
Arms 3 Arms
Input over and under voltage Vrms 253 Vrms and 184 Vrms
Motor re-start - Restart on failure according to number of retries specified in Table 9
Control interface
Analog input Volt 0-10V, non-linear, incl start/stop hysteresis
Analog input impedance Ohm Approx. 15 kOhm
Digital input - 1 x Digital input – Set Direction
1 x Digital input – Rotation sensor
Communication interface - 1 x Modbus RTU (on RS485), 24V protected
Control interface alarm - 1x Alarm relay NC/C/NO
Maximum: 2A/250Vac or 6A/24Vdc
Indicators - Red/Green/Yellow LED on the PCB, check Figure 6 for position
Settings - Dipswitch for Motor setting, reset and test function
Galvanic isolation - Reinforced Insulation
Auxiliary power supply
External auxiliary power supply V 10 volt DC (@ input: 230 VAC +/-10%)
External auxiliary power supply mA Maximum 10mA
Enclosure
Material - Aluminium Alloy - No painting – Polymer cover (PC/ABS 5VA)
Mounting - 4 x Ø5.5mm holes
Mounting direction - Vertical
Protection Ingress IP 54
Size L x W x
H
209x158x73 [mm]
Weight Kg 1.4
Connections - - Spring terminals for wires
- Bracket for Motor Cable shield
- Screw terminals for PE conductors
Cable fixing/fastening - Cable Glands
Cable glands - 2 x M16
2 x M20
Service
Discharge time Minutes 5
Cooling time Minutes 5
Power-up Initialisation time Sec Max 12.5 s.
Table 2 – Product overview
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General