P/N: 1176718
REV: 02/17/2021
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5.3: D
IAGNOSTIC
R
ELAY
The power supply unit inside each IntelliROL power supply has a diagnostic relay that can be
used to monitor the status of the unit. When the unit is powered and functioning properly, the
diagnostic relay contact will be closed.
Adjustable Output Voltage
The output voltage of the power supply units is adjustable from 24V to 28.8V. This can be used
to possibly overcome a low voltage condition, as long as the maximum voltage at any point in
the system does not exceed specifications.
Status Indicators
Status indicators are provided on the front of the power supply units internal to every IntelliROL
power supply. The Uout status indicator will be illuminated green if the output voltage is 21.6V
or greater. It will be illuminated red if the output voltage is less than 21.6V and greater than or
equal to 7V. If the output voltage is less than 7V, the indicator will not be illuminated at all.
There is also an Iout status indicator on the front of the power supply units. It will be illuminated
green if the output current is less than or equal to the rated output current. If the output current
is greater than the rated output current, the indicator will be illuminated orange. The indicator
will be illuminated red if the unit is shut off and in protection mode due to excessive output
current.
Output Circuit Protection
Every IntelliROL power supply includes circuit breaker protection of the output circuits. Power
supplies with a 10A output rating have one 10A circuit breaker. Units with a 20A output rating
have one 20A circuit breaker. Those with a 40A rating have two 20A circuit breakers, while
80A-rated units have four 20A circuit breakers.
Output Circuit Protection
