Apc SYMMETRA 990 User Manual download pdf (Page 19)

Configuration: How to Configure the System

Symmetra MW with External Bypass Static Switch Operation Manual - 990-1377D-001 15



Change the touch-screen settings:

– Brightness: Place the finger on the indicator

and slide it left or right to the desired setting.

– Contrast: Place the finger on the indicator and

slide it left or right to the desired setting.

– Backlight mode: Select “Always on” or “Off

after inactivity”.

– Backlight timeout (minutes): Select the time

limit for turning off the screen backlight.

– Recalibrate Display: Press this button to

initiate the calibration of the screen.

Note: If the backlight mode is set to “Always on” this will reduce the lifetime of the display.

Note: If a display reboot is required, it can be achieved by recalibrating the display.

How to configure the Modbus Settings screen

The Modbus Settings screen allows monitoring of the UPS by a Building Management System (BMS).



Press the Modbus Settings button on the User

Configuration screen to access the Modbus

Settings screen.



Change the modbus settings:

– BMS modbus RTU address: The modbus

address of the UPS device.

– Baud rate: Select 9600, 19200, 38400, 57600,

or 115200.

– Parity: Select None, Odd, or Even.



Press Apply Changes to complete the changes.

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 31 32

No comments

Apc SYMMETRA 990 User Manual Page 19