LT-4100 User & Installation Manual Rev 1.00
Interfaces
Lars Thrane A/S
www.thrane.eu
Page 23 of 129
Interfaces
LT-4110 Control Unit
This section will describe all the external interfaces from the LT-4110 Control Unit.
DC input (PWR)
The LT-4100 system is designed to be used on 12 VDC and 24 VDC power buses (nominal). External DC
power to the LT-4100 system is provided by connecting the proprietary 91-102118 Power Cable, 3m -
delivered by Lars Thrane A/S. The power connector is mounted on the back side of the LT-4110 Control Unit
and marked ‘PWR’, see
The power source for the LT-4100 system must comply with the regulations and the associated standards,
minimum is compliance to IEC 60945 (2002). When extending the power supply cables the positive (+) and
the negative (-) must be installed closely together in order to keep the cable inductance low.
NOTE
:
Make sure to use a galvanic isolated power supply, see
Galvanic Isolated Power Supply
on
page 37.
NOTE
:
The input voltage range is: 12-24 VDC (2.2-1.7A). The LT-4110 Control Unit DC input
connector and circuit is protected and certified for Reverse Polarity Protection.
NOTE
:
A power connector (4-pole) is used for the LT-4110 Control Unit. This power connector
requires the 91-102118 power cable, 3m from Lars Thrane A/S. Use only the 91-102118
power cable, 3m delivered by Lars Thrane A/S.
Figure 24: LT-4110 Control Unit (back view)