Commissioning (hardware)
4.3 User memory concept
SIMOTION D4x5-2
Commissioning and Hardware Installation Manual, 02/2012
91
Note
DCC SIMOTION blocks with retain behavior act like retain variables in terms of copying RAM
to ROM, resetting memory, downloading, backing up non-volatile SIMOTION data
(_savePersistentMemoryData) and backing up data.
For the SINAMICS Integrated and CX32-2, the data backup of the SINAMICS retain data
(and therefore also for SINAMICS DCC) is performed via the NVRAM (D4x5-2) or the FRAM
(CX32-2). SINAMICS data is not saved with _savePersistentMemoryData. The non-volatile
SINAMICS data (NVRAM data) is backed up by setting the CU parameter p7775 to 1.
For further information on DCC, see the
DCC Programming
Programming Manual.
The non-volatile data of the SIMOTION D4x5-2 has the following properties:
Table 4- 2 Non-volatile data and real-time clock properties
Properties Non-volatile data Real-time clock (RTC)
Location The non-volatile data is located
• For a D4x5-2 in an NVRAM
• For a CX32-2 in an FRAM
The real-time clock is backed up
maintenance-free via a SuperCap or a
battery.
Back-up battery No Optional
(for longer backup time)
Backup time There is no maximum backup time
• SuperCap: At least 4 days
• Battery: At least 3 years
If the buffer time is exceeded on the real-time clock, the time is reset.
Fan/battery module
If the backup time for the real-time clock (RTC) is not sufficient, a battery can be connected
by means of an external fan/battery module. The backup time when a battery is used is at
least three years.
A 3 V lithium SN: 575332 battery type (with cable lug and connector) is used. The battery
can be replaced without data loss, because the real-time clock is backed up internally via the
SuperCap.
A fan/battery module is always required for SIMOTION D4x5-2 and therefore is always
supplied with the module (see the
SIMOTION D4x5-2
Manual).
To Next Page
Loading...
