Proface PS4800 - 19 Panel PC" - Manual (Page 124)

Hardware Modifications
124
Uninterruptible Power Supply (UPS)
Overview
The Uninterruptible Power Supply (UPS) option is only available for DC Industrial
Personal Computer. The following figure shows a Industrial Personal Computer
equipped with the UPS option:
1 UPS battery unit
2 UPS connection cable 3 m (9.84 ft)
3 Industrial Personal Computer with UPS Interface Board (pre-installed)
NOTE:
When using a model with an integrated UPS module, connect the UPS battery unit
before starting up the Industrial Personal Computer. If the Industrial Personal
Computer is started before the UPS battery Unit is connected, a system error will
occur and the buzzer will sound, so please use caution.
The main features of the UPS option are:
z Long-lasting, maintenance-free rechargeable batteries
z Communication via integrated interfaces
z Temperature sensor
z Deep discharge protection
UPS Principle
With the optionally integrated UPS, the Industrial Personal Computer system
completes write operations even after a power loss. When the UPS detects a power
loss, it switches to battery operation immediately without interruption. This means
that all running programs are ended properly by the UPS software. This prevents the
possibility of inconsistent data.
NOTE:
z This function is only available if the UPS is configured and its driver is activated
(see page 148).
z The monitor is not handled by the UPS and will shut off when the power fails.