Automatic/Manual Load Reconnection; Disconnect On Power Failure - Landis+Gyr CASHPOWER SABRE MK 5 User Manual

(either automatically or via a manual operation on the keypad - refer to paragraph
5.8) and, unless the excessive loading has been removed, the process will be
repeated. Note that vouchers may be entered and the information modes accessed
as normal during the power limit lockout period.
•
If the power drawn by the customer is reduced in response to a power limit
disconnect, the event will be ignored after 15 minutes has elapsed.
•
The LCD will display the following during the two conditions:
Figure 5: LCD Showing "Power Limit Trip" - Disconnection for a 30 second period
Figure 6: LCD Showing "Power Limit Lockout" - Disconnection for a 30 minute period
NB: Power Limit is not a form of safety overload protection. It is designed to generally
limit the overall usage of power in a particular area (possibly dictated by reticulation
limitations or linked to a tariff allocation).

5.8. Automatic/Manual Load Reconnection

In some instances, local safety regulations require that the meter not automatically re-close
the load switch after, for example, a power limit trip. Under these conditions, the load switch
will remain in the open state until such time as a key is pressed on the keypad.
Using the example of a power limit trip – refer to paragraph 5.7, the load switch will open and
remain open for a period of 30 seconds. At the end of this 30-second period, the display will
return to normal but, instead of the load switch closing, the load switch status icon on the
LCD will start to flash, toggling between an open and closed state. This is a visual indication
that the load switch may now be manually closed, by pressing any key on the keypad.
In the event of the load switch opening due to expiry of credit, it will only be able to close
again on entry of a valid credit voucher. The manual action of entering a credit voucher via
the keypad, results in the load switch closing when the last digit of the voucher is entered
and accepted by the meter.
Automatic/manual load reconnection is a configurable option, set at the time of manufacture
– refer to paragraph 6.14. It may also be changed at any stage with a suitable engineering
voucher.

5.9. Disconnect on Power Failure

This option, configurable at the time of manufacture, refer to paragraph 6.14, forces the
meter's load switch to open whenever there is a power failure. The option can be invoked as
a means of preventing the meter from being installed fraudulently with line and load
connections reversed, in which case the meter will never power up once the load switch is
open.
Filename: User Guide Sabre Mk5 Rev 0.0.doc Page 17 of 28