Honeywell 95-7769-01 User Manual

95-7769—01

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1. The DLC starts shedding by first searching for all the Off 

Continuous loads that are eligible for shedding.

2. Then, it first sheds the lowest numbered Off Continuous 

load and waits the staging interval to see if the demand 

has reduced.

3. If the demand is still above the peak setpoint, then DLC 

sheds another Off Continuous load. This process 

continues until the demand is well within the peak 

setpoint limits.

4. If the demand has still not reduced, then DLC searches 

for all the Rotated loads.

• If the demand drops below the normal level, then the loads 

that are currently shed will be actively restored one at a 

time, every staging interval, until the demand reaches the 

normal level. When restoring loads, DLC, on priority, 

searches and restores:

• The Rotating loads where the load that has been shed 

for the longest period is restored first.

• Then the Off Continuous loads where the load 

restoration goes from highest load number to the 

lowest load number.

• Loads are restored every staging interval if the override 

condition becomes true or the maximum shed time has 

been met. All loads that satisfy these conditions are 

restored.

Demand Limit Control is a function that controls the maximum 

power demand made on the whole system by shedding some 

of the load based on priority where total power usage of 

configured loads exceeds the predefined limit. Shedding 

requires turning off some digital output, or changing a setpoint 

to a more economical level.

You can view the DLC service status that includes all load 

assignment details. DLC status is updated at the rate of the 

staging interval. 

1. Click the DLC tab. The DLC Status page appears.

2. The following information is displayed as read only text:

• Setpoint: Displays the setpoint value.

• Current KW: Displays the average power 

consumption of the total assigned load. 

• DLC Status: Displays the current DLC status. Four 

modes present are: Disable, Deadband, Shed, and 

Restore.

NOTE: Use Filters to quickly search the required DLC mode.

Use one of the following filter options to search for the 

required load assignment:

• Load Name Pattern

• Shed Method

• Shed State

NOTE: To quickly search, type the first letter of the required 

filter criteria in the Keyword text box and type an 

asterisk (*). This lists all the names starting with the 

first letter that you have written in the Keyword text 

box.

3. The following information is displayed:

• Load Assignment Name

• Min On/Shed Time

• Max Shed Time

1. Click the DLC tab. The DLC Status page appears.
2. Click the Configure tab. The Configure page appears.

3. Select the pulse meter options. Click Select Point. A 

Selected Pulse Meter pop up appears. Select a 

Channel, Device, and Point for configuring DLC and 

click OK.

NOTE: Check the Disable DLC Service check box to 

disable the DLC service.

4. Enter/Select the following parameters:

• Peak Set Point: Enter the setpoint to set as the 

peak limit. The range for peak set point value is 0-

6000.

• Demand Window Period: Select the demand 

window period from the Demand Window Period 

drop-down list. The valid range is in steps of 1 

minute to 15 minutes. It is the time interval over 

which the instantaneous KW demand is averaged to 

determine the effective KW peak demand value. 

This value, in turn drives the DLC to shed or restore 

loads. The demand value is read from the pulse 

meter for every 15 seconds and the average 

demand value is calculated accordingly.

• Staging Interval: Select the staging interval from 

the Staging Interval drop-down list. The valid range 

is in steps of 20 seconds to 120 seconds. 

WebVision collects the KW samples for every 15