Table of Contents
Advertisement
Rack
2.2 Rack UR5213 (6DD1682-0CH0)
2.2.8
Ventilation/cooling
The PS5213 power supply is equipped with three fans.
Since the rack is not equipped with an air filter, you should provide a filter on the cabinet if
necessary.
Fan monitoring
The fans are monitored (speed). Activation of the monitoring function is delayed in order to
enable the reliable startup of the rack after you switched on power.
On failure of one or two fans, the power supply is shut down in order to prevent thermal
destruction of the modules. Use the "Shutdown Mode" dip switch to select the mode (the
switch has the "ONE" or "TWO" settings). With switch position "ONE", a power supply
shutdown is triggered on failure of at least one fan and in switch position "TWO" by the
failure of at least two fans.
Always set the "Shutdown mode" dip switch S1.4 to "ONE" for modules requiring forced
convection (e.g. CPU550) at air intake temperatures from 0 C to 55 °C.
You may only set switch position "TWO" if it can be assured that the air intake temperature
at the rack does not exceed 35 °C. The power supply is not shut down on failure of a single
fan, but the corresponding backplane bus signal (FANAL*) is activated and can be detected
by the configuration software.
Fan replacement
At an ambient temperature of 55 °C, it is recommended to replace the fans at intervals of
approx. 40,000 operating hours. The power supply must be removed for fan replacement.
Users cannot replace the fans.
Signaling relay
Three 230V signaling relays with floating potential facilitate external evaluation of the rack's
system states.
Table 2- 4
Signaling relay
Signaling relay
Terminal X1
SYSFAIL
1,2
POWER
3,4
FAN FAIL
5,6
56
WARNING
Contact in switched off state
Closed
Open
Open
Contact in error-free
operation
Closed
Closed
Closed
System Manual, 12/2013, A5E01114865-07
LED in error-free operation
Off
green is on
Off
SIMATIC TDC hardware
Advertisement
Table of Contents
