KEB C6 P34 PANEL, Инструкция по эксплуатации

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SySTEM DESCrIPTION
2.7.6 Micro-UPS
UPS (uninterruptable Power Supply) devices are normally used to provide the continu-
ity in the power supply circuitry to electronic devices where the electronics itself or the
user’s application hosted by the devices is critical from the possibility of a sudden loose
of power. The Mirco-UPS is designed to be used in combination with CONTROL Soft
PLC. The Micro-UPS module is installed on the internal power supply unit.
Energy storage 4 super-capacitors 28F 2.7V connected in series.
Charging time 15s
Typical operating time Greater than 500ms
Maintenance None
Installation Built-in electronics and super-capacitors
Local memory directly mana-
ged by the power supply
Non volatile 512KB MRAM for Soft PLC retain fea-
ture; real available memory 64KB for RETAIN seg-
ment + 128KB for PERSISTENT segment
System’s actions taken when
in UNDER_VOLTAGE
LCD is switched OFF
USB power supply is switched OFF
Handling of retentive data in
CONTROL runtime implemen-
tation
When receiving the UNDER_VOLTAGE signal the
CPU starts a 20ms timer. When the timer is elapsed
the system checks again the UNDER_VOLTAGE.
If the signal is still active the system checks for the
MICRO_UPS_VCAP_OK. If this signal is high the
super-capacitors are ready and the peripherals are
switched off (see previous point).
The memory data block (128KB) is copied the MRAM
memory.
In case the super-capacitors are not ready, no data
is saved to avoid possible data corruption. The data
saving process can be estimated never exceeding
250ms at maximum.
After the data copy has been completed if the UN-
DER_VOLTAGE signal is still active the system is tur-
ned off; if the UNDER_VOLTAGE signal is OFF the
system is restarted automatically.
In case of a shutdown command the data is saved
and the system turned off. Note: Sleep mode is not
supported.
User’s application compatibility Applications can subscribe Micro-UPS “power-down
event” form Micro-UPS APIs.
Note: No shutdown command is sent to the OS,
hence no files nor databases can be automatically
closed without proper handling of the event.
Note: If CONTROL runtime has to manage retain va-
riables the user’s “event-application” must work on a
priority level greater than 10.
Note: Please contact KEB support for further details
about APIs availability and use.
Table 4: Micro-UPS data