Classic Manual Rev-H

Classic owner’s manual Rev H 2056
45 | P a g e 1 0 - 0 0 1 - 1 R E V : H
We recommend using flat phone cable for extension, just
because it is easier to work with. Use the two pictures above
as reference. Make sure the color and position of the wires
are as shown in the diagram below. Use terminal connector
tab as reference.
Arc Fault
Because safety is not an option, the Arc Fault Detector is a unique safety component included in every Classic. The
engineers at MidNite take action as the 2011 NEC code requires. The Classic is the first charge controller in the
world to successfully stop a series arc. The Classic can detect an arc in less than 100mSec. From low power arcing
to devastating high power arcing, the Classic will detect and shut down with an audible and visible alert to
announce that there is a problem in the PV side of the system. When an arc is detected the Classic has to be
manually cleared.
Resetting the Arc Fault Detector after detection has occurred: The first thing to do is find and fix the actual arcing
wire, terminal, splice etc. The Classic needs to be powered down completely for 15 seconds and then powered back
up. Do this by turning the DC source (PV, Wind or hydro etc.) breaker off. Then turn off the external battery
breaker. Then simply turn the 2 breakers back on starting with the battery breaker.
The arc fault module has three adjustable parameters consisting of: MODE, TIME & SENSITIVITY
MODE: Is assigned as a 1 from factory default and it should stay that way unless instructed by MidNite Solar.
TIME: This sets the length of the arc the Classic has to monitor before tripping the Arc fault detection.
This parameter is set to 4 from the factory.
SENSITIVITY: This parameter determines how sensitive the Arc fault detector will be 1 being the most sensitive
and 15 the least. This parameter is set to 10 from the factory.
If you experience nuisance tripping you can
raise the sensitivity one digit at a time.
Follow the instructions below to make
adjustments or disable Arc fault. As a last
resort, you may disable Arc fault if your
system cannot work with the arc fault
detector.
Figure 21
Diagram 6
Figure 22