Danfoss VLT HVAC Drive - Page 148

Control card, 10 V DC output:
Terminal number 50
Output voltage 10.5 V ±0.5 V
Max. load 25 mA
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 : +/- 0.003 Hz
System response time (terminals 18, 19, 27, 29, 32, 33) :  2 ms
Speed control range (open-loop) 1:100 of synchronous speed
Speed accuracy (open-loop) 30 - 4000 rpm: Maximum error of ±8 rpm
All control characteristics are based on a 4-pole asynchronous motor
Surroundings:
Enclosure  enclosure type A IP 20, IP 55
Enclosure  enclosure type A, B IP 21, IP 55
Enclosure kit available  enclosure type A IP 21/TYPE 1/IP 4X top
Vibration test 1.0 g
Max. relative humidity 5% - 95% (IEC 721-3-3); Class 3K3 (non-condensing) during operation
Aggressive environment (IEC 721-3-3), uncoated class 3C2
Aggressive environment (IEC 721-3-3), coated class 3C3
Test method according to IEC 60068-2-43 H2S (10 days)
Ambient temperature Max. 122°F [50°C]
Derating for high ambient temperature, see section on special conditions
Minimum ambient temperature during full-scale operation 32°F [0°C]
Minimum ambient temperature at reduced performance 14°F [-10°C]
Temperature during storage/transport -13° - +149/158°F [-25° - +65/70°C]
Maximum altitude above sea level without derating 3281 ft. [1000 m]
Maximum altitude above sea level with derating 9842 ft [3000 m]
Derating for high altitude, see section on special conditions.
EMC standards, Emission EN 61800-3, EN 61000-6-3/4, EN 55011, IEC 61800-3
EMC standards, Immunity
EN 61800-3, EN 61000-6-1/2,
EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN
61000-4-6
See section on special conditions
Control card performance:
Scan interval : 5 ms
Control card, USB serial communication:
USB standard 1.1 (Full speed)
USB plug USB type B “ device” 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.
8. Specifications VLT
®
HVAC Drive Instruction Manual
148 MG.11.A4.22 - VLT
®
is a registered Danfoss trademark
8