Danfoss VLT 380-500 V Design Manual page 59

Specifications
The relay contacts are galvanically isolated from the rest of the circuit by reinforced isolation (PELV).
2) Overvoltage Category II.
3) UL applications 300 V AC 2A.
Control card, 10 V DC output
Terminal number
Output voltage
Maximum 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 0–590 Hz
Repeat accuracy of precise start/stop (terminals 18, 19)
System response time (terminals 18, 19, 27, 29, 32, 33)
Speed control range (open loop)
Speed control range (closed loop)
Speed accuracy (open loop)
Speed accuracy (closed loop), depending on resolution of feedback device
All control characteristics are based on a 4-pole asynchronous motor
Control card performance
®
Scan interval (VLT HVAC Drive FC 102, VLT
Drive FC 202)
Scan interval (FC 302)
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-voltage terminals.
The USB ground connection is NOT galvanically isolated from protective earth. Use only an isolated laptop as PC connection to
the USB connector on the frequency converter.
MG37N102
Design Guide
®
Refrigeration Drive FC 103, VLT
Danfoss A/S © 6/2016 All rights reserved.
1:100 of synchronous speed
1:1000 of synchronous speed
30–4000 RPM: error ±8 RPM
0–6000 RPM: error ±0.15 RPM
®
AQUA
®
5 ms (VLT AutomationDrive FC 302)
USB type B device plug
50
10.5 V ±0.5 V
25 mA
±0.003 Hz
≤±0.1 ms
≤10 ms
6 6
1 ms
1.1 (full speed)
57