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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