5.4 Default settings at the factory

On the LCD display you will find several of the UPS parameters to select. Default settings are as follows:

6. Computer and alarm connections

At the back of the UPS is an interface allowing direct communication with your computer system, the location of which can be found in figure 4. There is a RS232 serial data interface, one USB data interface and an emergency power off switch supplied. However,

Settings

Output Voltage Setting

Input/Bypass Voltage

Input/Frequency

HE Mode Setting

Free Run Mode

Bypass Enable/Disable at free run mode

Alarm silence

Site wiring alarm

External Battery pack setting

Selection

208/220/230/240 Vac

±10% +10/-15% +15/-20%

±2%

±5%

±7%

On/Off

On/Off

Disable/Enable

On/Off

Enable/Disable

0, 1, 2

Factory default

230V (FOR HV series)

+10/-15%

±5%

Off

On

Disable

Off

Disable

0

the RS232 port cannot be used when the USB interface is in use.

In addition there is an optional interface slot that allows you to install different communications cards. It can be used parallel with either the RS232 or USB ports.

Currently there are two cards available for the optional interface slot. An SNMP/WEB card allows management and monitoring over a network or internet, and the AS/400 card allows voltage free relay contacts. Your local dealer will have more information about these option cards.

Connecting the UPS to a Computer

The communication device for the UPS and PC comes as a complete package with power management software. Only the communication cable provided with UPS may be used to connect to your computer, which is accomplished through the UPS RS232 port. Also ensure that the operating system on your computer is supported. Instructions provided in the power management software will help with this installation.

Other advanced power protection solutions such as SNMP are provided by your dealer.

RS-232 Standard Interface port

The RS-232 interface uses a 9-pin female D-sub connector. This information consists of data about utility, load and the UPS. The interface port pins and their functions are

You may change default settings, but we recommend that this is done after installation and before starting up loads. Read UPS configurations in chapter 7.2 for more information.

identified in the following table.

Pin #

Signal name

Direction (re UPS)

Functions

 

 

 

 

2

TxD

Output

TxD Output

 

 

 

 

3

RxD

Input

RxD / Inverter Off Input

 

 

 

 

5

Common

 

Common

 

 

 

 

6

CTS

Output

Ac Fail Output

 

 

 

 

8

DCD

Output

Low Battery Output

 

 

 

 

9

RI

Output

+12 VDC Power

 

 

 

 

 

Caution! Max rated values 12Vdc/50mA

Fig.4

16

17

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EMC 4K VA 20K VA UPS Computer and alarm connections, Default settings at the factory, Connecting the UPS to a Computer