Supplementary system components
6.2 Fan/battery module
SIMOTION D4x5-2
94 Manual, 02/2012
Cooling clearance
NOTICE
The cooling clearances of 80 mm above and below the component must be observed. The
unit protects itself from overheating by shutting down.
The clearance below the component is calculated from the bottom edge of the module, i.e. if
there is a fan, it will not be included in the clearance.
Buffering data
For the retentive storage of process variables, the SIMOTION D4x5-2 has an NVRAM
memory that permanently backs up the data against a power failure.
The real-time clock is backed up by a SuperCap and continues to run when there is a power
failure. This backup is for at least four days.
If this backup time is not sufficient, the real-time clock can be backed up by a battery that is
inserted in the fan/battery module. The battery is already included in the scope of delivery of
fan/battery modules.
Note
The backup time when a battery is used is at least three years. For the replacement part
case, you should back up the NVRAM data additionally on the CompactFlash card via the
application ("_savePersistentMemoryData"). Temperature faults are recorded and signaled
by the control.
Battery
A 3 V lithium battery can be inserted in the fan/battery module. The battery is pre-assembled
with an approximately 4 cm long cable with plug connector. The appropriate mating
connector is attached to a small printed circuit board for connection in the fan/battery
module.
See also
Available spare parts and accessories (Page 135)
Replace battery in the fan/battery module (Page 96)
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