7.5 kVA - 15 kVA UPS
Parallel for redundancy System
User’s and Installation Manual
1012833
Revision 4
18
External battery connections
Both UPSes are provided with the connections for external battery cabinet. If external
battery cabinet is used, see the installation manual of the battery cabinet, which is
delivered with the cabinet. External battery cabinets include connection cables when
connecting external battery cabinet next to UPS.
The installation of the external battery cabinet must be done by qualified personel only.
7. Computer and alarm connections
An interface for direct communication with your computer system is supplied in the UPS
units. The interface consists of two RS232 serial data interfaces, four potential free relays,
emergency power off input and four programmable auxiliary inputs. Default values of these
auxiliary inputs are: Generator on, Remote output on/off, External bypass switch and
Environment alarm. These interfaces are located behind the upper front panel (see figure
5b). The UPS units are designed to fully comply with LanSafe III and PowerVision softwares.
The LanSafe III and PowerVision softwares can control/monitor both UPS units
individually, not as a parallel for redundancy system.
If any software not provided by the manufacturer is used, the pin configuration should be
verified.
NOTE
All connections mentioned in chapter 7 must not be galvanically connected to
any mains connected circuits. Reinforced insulation to the mains is required for
equipments and cables connected to these connections.
Connecting the UPS to a computer
The optional UPS/PC communicating device is delivered as a complete solution package
with accompanying Power Management Software. To connect the UPS to the computer,
use the communication cable provided with the package. (Note: Do not use any other
communication cable than the one provided with the UPS). Check from the software
documentation that the platform running on your computer is supported. Follow the
instructions of the Power Management Software to complete the installation. For other
operating systems, SNMP and more advanced power protection solution combinations,
please contact your local dealer.
RS232 serial data interfaces
Wiring of the serial data interfaces shall be routed behind front panel, NOT through cable
entries of power connections.
The RS232 interface X100 uses 9-pin female D-sub connector and the interface X101 is 9-
pin male D-sub connector. The information includes data about the utility, load and the
UPS itself. The connector X100 is to be used with a computer connection and the other
X101 with a computer and a modem connection. See tables 6 and 7 for meaning of the
pins. The RS232 must not be galvanically connected to any mains connected circuits.
Reinforced insulation to the mains is required for equipments and cables connected to
these connections.