Siemens Simatic M7-400 Reference Manual page 418

Cable Duct and Fan Subassemblies
Shielding Clamps
If you do not require the shielding clamps supplied, do not install them in the fan
subassembly.
Technical Specifications
Dimensions, Weights
Dimensions WxHxD (mm) ( )
Weight
Cable diameter
Nominal Sizes
Lifespan of the fans
•
at C
•
at C
Max. contact load of relay
contacts 1 to 6
•
Switching voltage
•
Switching current
Warning
!
Electrical current can lead to personal injury.
If you remove the left cover when installing or removing the fan subassembly, the
terminals on the transformer are accessible briefly.
Remove the voltage from the fan subassembly before you install or remove it.
Disconnect the supply cable before you remove the fan subassembly.
Caution
!
Danger of damage to equipment.
If you mix up the power supply PCB and the monitoring PCB in the fan
subassembly, the fan subassembly may be damaged.
During maintenance of the unit, make sure you do not mix up the power supply
PCB and the monitoring PCB.
Monitoring Function
In the case of a fault (defective fans) the fans are not switched off. Once you have
replaced the defective fan(s), the fault is acknowledged automatically as soon as
the fans have reached the required speed. Any faults that occur are not stored.
When you switch on the fan subassembly, the fans start running. After
approximately 10 s the current status of the fans is indicated via LEDs and relays.
9-6
482.5×109.5×235 At nominal voltage of
appr. 2000 g
Power consumption
•
3 bis 9 mm
•
Starting current
70000 h Fuses
25000 h
24 VDC
200 mA
S7-400, M7-400 Programmable Controllers Module Specifications
Voltages, Currents, Potentials
230 VAC
with fan 17 W
without fan 5 W
0,6 A
160 mA
120 VAC
18 W
4 W
1,15 A
250 mA
A5E00069467-07