GSS STC 816 R, Assembly Instructions Manual

Page: 18 / 40

- 18 - STC 816 R
• Switch on the two power supply units by the on/off switches
)
.
—> At an error free operation the two operating status indicators ¡
will light green.
o
per atinG status indiCators
,
al ar m tone
LED
¡ State
green error free operation
red – voltage faulty
– overtemperature
– defect/blocked fan
off – switched off
– no function/defective
If one power supply is defective or switched off, an alarm tone sounds until the
reset button
(
is pressed (Fig. 14, page 17).
In addition, the following message is displayed:
POWER SUPPLY
(DC) fault ! ! ! ! !
If both power supplies are defective or switched off, the following message is
displayed:
POWER SUPPLY
(AC/DC) fault ! ! ! ! !
—> The alarm tone and the fault indicators can only be emitted as long
as the standby voltage is present.
r
epl aCinG a power supply
A power supply can be replaced during operation (hot swop).
• Remove the mains cable * (Fig. 14, page 17).
• Remove the locking screw
™
(Fig. 14, page 17).
• Take the handle and pull the power supply upwards out of the housing.