Rockwell Automation T8270 Trusted Fan-Tray 24V dc Rack Mounted - Manual

SDS-8270
Trusted
TM Industrial Control System
Trusted TM Fan Tray 24V dc Rack Mounted-T8270
Issue 6 Jan 2006
FRONT PANEL
DESCRIPTION
The Trusted
TM Fan Tray 24V dc Rack Mounted is designed to provide forced
cooling within a module rack of a Trusted TM System. The distribution of fan
trays within a module rack is on a basis of one per module chassis.
The Trusted TM Fan Tray 24V dc Rack Mounted comprises four fans
mounted vertically at the rear of a 2U high chassis (the illustration above is a
view of the Fan Tray from the rear of the chassis). The chassis containing
the fans incorporates a baffle to prevent air drawn by the fans flowing
through the module chassis immediately above the Fan Tray. Air exhausted
by the fans into the rear of the System cabinet is drawn upwards and out of
the cabinet by roof-mounted fans – see SDS-8271
The Fan Tray is powered from dual 24V dc supplies arranged such that
the fans are supplied in pairs via 250mA anti-surge fuses. The 0V supply is
connected via a terminal block – see block diagram overleaf.
Each fan is capable of moving 69m
3 /h when operating at a nominal rotor
speed of 3100 rpm. Protection against overloading and reverse polarity is
provided electronically for each fan.
FEATURES
Simple installation and
connection
Capable of moving 276m 3 /h
24V dc operation
Low noise (32db per fan)
TÜV certified for safety,
Risk Class 5