Set Options Register (Meter-Specific, Proprietary Token); 4.5.13 Commissioning And Decommissioning The Meter; Power Limiting - Landis+Gyr Cashpower Gem Lite User Manual

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4.5.12 Set Options Register (Meter-Specific, Proprietary Token)

On accepting this token, the "Changeable Options Register 0" is set according to the 8-bit value in the token.
The parameters are as follows:

Enable/Disable Tamper Function

Tamper / Do Not Tamper on Significant Reverse Energy

Disconnect / Do Not Disconnect on Power-Fail

Non Automatic / Automatic Latch Reconnect
Refer to paragraph 5.1.15

4.5.13 Commissioning and Decommissioning the Meter

The function of being able to set the meter into the decommissioned / commissioned mode offers several
advantages to meter installation personnel. If power is applied to the meter during installation and the meter
terminal cover not yet in place, the meter will detect this and enter into the tampered mode, thereby
disconnecting the supply to the customer. A meter-specific tamper reset token then needs to be generated at
the vending system to rectify the situation.
When setting the meter into the decommissioned mode, the following occurs:

The tamper detect sensing switch function is disabled.

The latching relay is set into the open state.
When setting the meter into the commissioned mode, the following occurs:

The tamper detect sensing switch function may be either enabled or disabled.

The latching relay operates as normal.

4.6

Power Limiting

The power-limiting feature allows utilities to set the maximum load that can be drawn by customers. The setting
can be changed when necessary via a set power limit token from the prepayment vending system.
This algorithm is included in the meter‟s software and is implemented as follows:

If the preset power limit threshold is exceeded, the latching relay will open for a period of 30
seconds (power limit trip period), after which it will re-close (either automatically or manually -
refer to paragraph 4.7).

If the power limit threshold continues to be exceeded, the above process is repeated.

If, after 4 power-limit events within a 15-minute window, the limit is still being exceeded
because of excessive energy consumption, the latching relay will be opened for a period of 30
minutes (the power limit lockout period).

At the end of the lockout period, the latching relay will re-close (either automatically or via a
manual operation on the keypad) and, unless the excessive loading has been removed, the
process will be repeated. Note that tokens 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.
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Care must be taken when using this feature, as the operator would not
know the settings in the meter, and various parameters could be set/reset.
for more detail.
The meter‟s commissioned / decommissioned status can be observed in
the meter state register - refer to paragraph
Meter Operation
5.1.13 for more information.
Cashpower Gem Lite – User Guide