User manual

A-9
For example, if you have a home office and you want to backup all of the outlets in the office using a UPS,
you would make the circuit to your office uninterruptible, and the load and all the outlets connected to that
BACKUP2 circuit would be protected by the UPS.
Delayable Circuits
This setting determines whether a circuit can be delayed or not.
As an example, assume that during a power outage you turn on your microwave, which may overload the
generator and cause you to lose all of your loads. However, if the refrigerator load is set as delayable, the
UTS can temporarily disconnect power to the refrigerator to allow the microwave to be powered. Then
when the microwave is turned off, power to the refrigerator is automatically turned back on. This is a good
example of the ALM algorithm being applied, which greatly enhances your generator’s usefulness and
operating efficiency.
When
CKT1 DELAYABLE is set to NO, power to that circuit is not delayable. This in turn means the circuit
will receive power with as few interruptions as possible.
Circuit Maximum Time Off and Minimum Time On
These parameters are active when the time management feature is
ON. Time management is used with load
shedding to ensure that your loads receive the power they need over extended periods of time, and enable
power to be turned
ON (enabled) or OFF (disabled) with as little disruption as possible.
MAX TIME OFF is used to adjust the maximum time a circuit can be "shed" (dropped) to prevent an overload
before it has to be reconnected.
For example, a circuit powering a refrigerator might be set to
30MIN, since its contents will not warm up
significantly over that period. However, a well pump motor may have to be set to
5MIN or less to prevent
the water tank from emptying during the time it is disconnected.
MIN TIME ON is used to adjust the minimum amount of time a circuit must receive power before it is
eligible to be shed (dropped) to prevent an overload. This is active when time management is active (
ON).
You may want to set the refrigerator’s
MIN TIME ON to 45MIN to ensure the refrigerator has sufficient time to
cool its contents once it turns back on.
When it is set to
YES the circuit is DELAYABLE, which
means that when the backup power source is about to be
overloaded, power to that circuit can be interrupted and
delayed until a later time.
CKT1 DELAYABLE
YES/NO
CKT1 MAX TIME OFF:
1-60MIN
CKT1 MIN TIME ON:
1-60MIN