Danfoss VLT HVAC Drive Instruction Manual page 148

8. Specifications
Control card, 10 V DC output:
Terminal number
Output voltage
Max. load
The 10 V DC supply is galvanically isolated from the supply voltage (PELV) and other high-voltage
terminals.
Control characteristics:
Resolution of output frequency at 0 - 1000 Hz
System response time (terminals 18, 19, 27, 29, 32, 33)
Speed control range (open-loop)
Speed accuracy (open-loop)
All control characteristics are based on a 4-pole asynchronous motor
Surroundings:
Enclosure ≤ enclosure type A
Enclosure ≥ enclosure type A, B
Enclosure kit available ≤ enclosure type A
Vibration test
Max. relative humidity
8
Aggressive environment (IEC 721-3-3), uncoated
Aggressive environment (IEC 721-3-3), coated
Test method according to IEC 60068-2-43 H2S (10 days)
Ambient temperature
Derating for high ambient temperature, see section on special conditions
Minimum ambient temperature during full-scale operation
Minimum ambient temperature at reduced performance
Temperature during storage/transport
Maximum altitude above sea level without derating
Maximum altitude above sea level with derating
Derating for high altitude, see section on special conditions.
EMC standards, Emission
EMC standards, Immunity
See section on special conditions
Control card performance:
Scan interval
Control card, USB serial communication:
USB standard
USB plug
Connection to PC is carried out via a standard host/device USB cable.
The USB connection is galvanically isolated from the supply voltage (PELV) and other high-volt-
age terminals.
The USB connection is not galvanically isolated from protection ground. Use only an isolated
laptop as a PC connection to the USB connector on the VLT HVAC Drive.
148
5% - 95% (IEC 721-3-3); Class 3K3 (non-condensing) during operation
EN 61800-3, EN 61000-6-3/4, EN 55011, IEC 61800-3
EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN
MG.11.A4.22 - VLT ® is a registered Danfoss trademark
VLT ® HVAC Drive Instruction Manual
10.5 V ±0.5 V
: +/- 0.003 Hz
1:100 of synchronous speed
30 - 4000 rpm: Maximum error of ±8 rpm
IP 21/TYPE 1/IP 4X top
Max. 122°F [50°C]
-13° - +149/158°F [-25° - +65/70°C]
3281 ft. [1000 m]
9842 ft [3000 m]
EN 61800-3, EN 61000-6-1/2,
1.1 (Full speed)
USB type B " device" plug
50
25 mA
: ≤ 2 ms
IP 20, IP 55
IP 21, IP 55
1.0 g
class 3C2
class 3C3
32°F [0°C]
14°F [-10°C]
61000-4-6
: 5 ms