Description, Figure 2 fan tray wiring diagram, Trusted – Rockwell Automation T8270 Trusted 24V dc Fan Assembly Rack Mounted User Manual
Page 7
Trusted
TM
24Vdc Fan Tray Rack Mounted T8270
Issue 8 Jun 08
PD-T8270
7
1. Description
The Trusted
TM
Fan Tray 24V dc Rack Mounted comprises four fans mounted vertically at the rear of a
2U high 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 PD-
8271.
Figure 2 below shows the configuration of the fans within the Fan Tray.
Figure 2 Fan Tray Wiring Diagram
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 terminal block TB1.
Each fan is capable of moving 69m
3
/h when operating with a nominal rotor speed of 3100 rpm.
Protection against overloading and reverse polarity is provided electonically for each fan.
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