KEB C6 E22 BM, Инструкция по эксплуатации

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SySTEM DESCRIPTION
2.4.10 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. KEB μUPS 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 feature; real availa-ble memory
64KB for RETAIN s 128KB for PERSISTENT segment
System’s actions taken when
in UN-DER_VOLTAGE
LCD is switched OFF
USB power supply is switched OFF
Handling of retentive data in
KEB CONTROL runtime im-
plementation
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 es-timated never exceeding
250ms at maximum.
After the data copy has been completed if the UNDER_VOLTAGE signal is
still active the system is turned 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 compatibi-
lity
YES, applications can subscribe μUPS “power-down event” form μUPS 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 KEB CONTROL has to manage retain variables 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.
Software utility Micro UPS diagnostic utility (available on request).
Table 1: Micro UPS data