BAS-SVX45F-GB 21
Power Budget Check in an Un-powered State
This section provides information about power budget consumption for the UC600 in an
un-powered state.
Calculating AC Power Consumption
Tracer UC600, along with the 24 VAC transformer, can draw up to 26 VA AC power. Observe the
following rules when calculating AC power:
• Each Tracer UC600 can power a maximum of two additional modules (XM30, XM32, WCI);
reserve 8 VA for this application.
• Additional expansion modules require an additional power supply module (PM014).
• Each Tracer UC600 can power a maximum of 10 points, configured as 4-20 mA in/out (loop-
powered).
Each of the components in the following table requires a specific amount of power (VA) from the
24 VAC transformer. The following table breaks down the power requirement for each, assuming
that:
• Universal inputs (UI) and universal input/outs (UI/O) draw at most, 20 mA.
• Binary outputs (BO) are not loaded; pilot relays are used.
• Expansion modules will draw full power.
Table 6. UC600 power draw (transformer sizing)
Component
Quantity and Type of
Input/Output
VA Draw Per
Input/Output
Maximum Total VA Draw
(24 VAC)
Tracer UC600 Board
UC600 (alone) 5.5 VA
8 Universal Inputs 0.8 VA 6.4 VA
6 Universal/Analog Outputs 0.8 VA 4.8 VA
4 Binary Outputs 0.3 VA 1.2 VA
1 Pressure Input (Kavlico) 0.1 VA 0.1 VA
Subtotal for Tracer UC600 18.0 VA
Tracer TD7 display 21.0 VA
Expansion Modules (Maximum of 2) 8.0 VA
Additional 24 VAC needs, such as actuators and additional VA requirements.
Total for Tracer UC600 + expansion modules + end devices 47.0 VA + additional 24 VAC
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