BAS-SVX090B-EN
49
24 Vac Measurement
General Information Checkout Procedure Measurement
Expected Value
Checking the voltage that is
powering the Symbio 500 is
often a necessary step when
commissioning or
troubleshooting. Operational
issues and LED operation
may result in a need to
measure the input power.
When troubleshooting, it is
faster to take measurements
while the load is in place. If
Step 1 indicates an out-of-
specification voltage,
disconnect the Symbio 500
and measure the AC voltage
across the transformer. These
measurements can direct the
technician towards the
problem source.
Step 1
Measure AC voltage with the
Symbio 500 connected.
Perform this measurement
while the unit is under load.
20.0 Vac ≤ Vac ≤ 30.0 Vac
Step 2
Measure AC voltage with the
Symbio 500 unconnected.
Perform this measurement
while the unit is not under
load.
20.0 Vac ≤ Vac ≤ 30.0 Vac
Binary Inputs, 24 Vac Detect, Method 1 or 2
Commissioning and Troubleshooting in Powered State
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