Vacon NX User Manual

Installation vacon • 57
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
5
Figure 24. Example of cooling system
We recommend to equip the cooling system with pressure and flow supervision (FE). The flow
supervision can be connected to digital input function External fault. If the coolant flow is found too
low, the AC drive will be stopped.
The flow supervision and other actuators, e.g. a constant flow valve, are available as options. The
options must be mounted at the junction of the main line and the branching line to the element,
indicated with an asterisk (*) in the figure above.
Figure 25. Example: PI-diagram of the cooling system and the connections
≈
=
=
≈
=
≈
=
≈
18.0ºC
26.1ºC
30.0ºC
34.5ºC
FE FE FE
****
*
*
*
*
TE
11332_uk
Cooling water inlet
Frequency converters
Cooling water outlet
11333_uk

Vacon NX Specifications

General

Product Type	AC Drive
Control Method	Scalar Control
Enclosure	IP00, IP21
Communication	Ethernet
Safety	STO (Safe Torque Off)
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overtemperature, Short Circuit
Ambient Temperature Range	-10°C to +50°C (with derating above +40°C)
Cooling Method	Air-cooled, Liquid-cooled