H8035/H8036
Z201686-0K
PAGE 10
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TM
INSTALLATION GUIDE
TROUBLESHOOTING
Problem
Solution
Status LED does not blink
Check fuses and voltage connections. Status
LED should blink regardless of CTs, Modbus
connections, and DIP switch setting.
Enercept interferes with
another device on the Modbus
network
Set DIP switches to a different Modbus address
not in use.
Readings seem highly
inaccurate.
• Check that each CT is installed on the conductor
with the corresponding color voltage input
lead attached. In most cases, incorrect wiring
will cause the STATUS LED to blink RED (slowly).
However, a power factor lower than 0.5 could
cause the LED to blink this way, even if the unit is
installed properly.
• It does not matter which side of the CT faces
towards the load.
• If current is below 7% of full scale maximum
for the CT, use a smaller CT or wrap each wire
through the CT multiple times
• Check current with an amp-clamp.
Expected power:
kW = Volts x Amps x 1.732 x PF / 1000
kW = Horsepower x 0.746
PF is usually 0.7 to 0.95, depending on the load.
Enercept goes offline when
load is switched off.
Voltage leads must be connected on the Line
side of the conductor. The Enercept cannot
communicate on the Modbus network without
voltage.
Status LED blinks red.
• If the LED blinks quickly (i.e., about 5 blinks in
two seconds), then the use a CT with a higher
amp rating.
• If the LED blinks slowly (i.e., about 1 blink in
two seconds) the CTs are not installed on the
correct conductors, or the power factor is less
than 0.5. The Enercept can accurately measure
these low PFs, but few loads operate normally at
such a low power factor.