36
SySTEM DESCrIPTION
2.6.6 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
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 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 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 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.
Software utility
Micro-UPS diagnostic utility (available on request).
Table 3:
Micro-UPS data
Summary of Contents for C6 E22 BM-RVL
Page 1: ...EMBEDDED IPCS INSTRUCTIONS FOR USE E22 BOX PANEL Original Manual Document 20146638 EN 01 ...
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Page 11: ...11 List of Figures Figure 89 External connectors 108 Figure 90 Buttons position detail 108 ...
Page 48: ...48 Installationand connection ...
Page 96: ...96 Drawings 7 1 4 C6 E22 PANEL SL S1 12 1 W Figure 75 12 1 Wide dimensions ...
Page 110: ...110 Certificatesandapprovals 8 Certificates and approvals 8 1 EU Declaration of conformity ...
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