7.7.2 Configuring heavy consumers
Single line diagram
To add a heavy consumer to the single-line diagram:
1. In PICUS, under Configure > Single-line, drag the HC icon to the right place on the single-line
diagram.
2. Select the heavy consumer on the single-line diagram, and, if necessary, change its System ID,
Feedback type, Controller ID and Label.
3. Broadcast the changes to all the controllers in the system.
• If needed you can override the controller ready status.
Table 7.14
Heavy consumer configuration options
Name Details
System ID The unique heavy consumer number in the system. Range = 1 to 48.
Feedback type
Fixed: The heavy consumer provides load feedback to a controller digital input.
Variable: The heavy consumer provides load feedback to a controller analogue input.
Controller ID
Drop-down list of the controllers in the system. The heavy consumer must be assigned to a controller. After writing
the single-line diagram, you can configure the heavy consumer input and output functions on that controller.
Label Customisable label for the heavy consumer.
Heavy consumer priority
If two or more heavy consumers send requests at the same time, the PMS uses the System ID to determine the priority. The heavy
consumer with the lowest System ID has the highest priority.
The PMS acknowledges the highest priority heavy consumer first. However, once the controller has acknowledged a heavy
consumer request, then the acknowledged heavy consumer is not displaced by a higher priority heavy consumer.
Wiring examples
More information
See Wiring for controller functions, Power management wiring, Heavy consumer in the Installation instructions for
examples of heavy consumer wiring.
Inputs and outputs
Assign the heavy consumers inputs and outputs under Configure > Input/output. Select the hardware module, then select the
input/output to configure.
Table 7.15
Hardware required in addition to the minimum standard controller wiring
Function I/O Type Details
Heavy consumers >
[Heavy consumer #] >
Request*
Digital input
Pulse/
Continuous
Required for each heavy consumer. The controller starts the heavy
consumer connection function when this input is activated.
Heavy consumers >
[Heavy consumer #] >
Acknowledge*
Digital
output
Pulse
Required for each heavy consumer. The controller energises this relay
when the required power is available, and then the heavy consumer
can connect.
Heavy consumers >
[Heavy consumer #] >
Feedback*
Digital input Continuous
Required if Fixed is selected for the Feedback type. When the heavy
consumer request is activated, but this input is not activated, the
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