P/N: 1176718
REV: 02/17/2021
Page
24
of
32
SYMPTOMS
POSSIBLE CAUSES
RECOMMENDED SOLUTIONS
Input Status indicator not
illuminated on Class 2
protection module
No input voltage at Class 2
protection module
Investigate issue with no voltage
from main power supply unit
output to input on Class 2
protection module.
Input Status indicator flashing
green on Class 2 protection
module
Input protection circuit
activated due to low-voltage
input at Class 2 protection
module (all four Output Failure
indicators are illuminated red)
Input voltage to Class 2
protection module has dropped
below 21V. Resolve low-voltage
issue with main power supply
unit. Once issue has been
resolved, press ON/OFF-Reset
push button on Class 2
protection module for more
than 1 second to reset input
protection circuit. Alternatively,
apply a 24VDC signal to the
ON/OFF-Reset input on
terminals 11 and 12 of the Class
2 protection module for more
than one second.
Class 2 protection module
Output Failure indicators; 1
flashing red, 3 illuminated red
Class 2 output associated with
flashing indicator shutdown
due to the Class 2 output
exceeding rated output current
Look for an issue with a
CRUZcontrol component causing
it to draw excessive current from
the Class 2 circuit.
Consider reducing the number of
CRUZcontrol components pulling
power from the Class 2 circuit to
reduce the current draw.
Class 2 protection module
Output Failure indicators; 4
flashing red
All Class 2 outputs shutdown
due to the sum of all Class 2
outputs exceeded rated output
current
This only applies when using all
four Class 2 circuits. Look for
faulty components on the Class 2
circuits causing excessive current
draw.
Consider reducing the number of
devices pulling power from the
Class 2 circuits to reduce the
current draw.
