Troubleshooting - Emerson Network Poewr MPH2 User Manual

5.0 T
ROUBLESHOOTING
LED Indication
(One or All LED's)
State/Flash
Color Speed
Green Fast
Green Steady On
Off NA
Red Steady On
Red Fast
Green Slow
Red Fast
Red
(All Receptacle Pulse
LED's)
Green
(All Receptacle Slow
LED's)
Red
(All Receptacle Fast
LED's)
® ™
Emerson MPH2
Audible
Alarm
Condition
Receptacle
—
Identification
Input Voltage Supported
—
Receptacle Powered On
— Voltage Off
Line Undervoltage
✔
Alarm
Line or Receptacle
✔
Overcurrent Alarm
Line or Receptacle
—
Overcurrent Warning
Line or Receptacle
✔
Undercurrent Alarm
Branch Circuit
—
Breaker Open
Branch Overcurrent
—
Warning
Branch Overcurrent
✔
Alarm
30
Status/Recommended Action
Remote user is requesting outlet identification.
The LED should stop flashing after 10 seconds.
Normal Operation
Check power source and input plug's receptacle
wiring.
Check receptacle power control settings.
Check power source for power quality problem. If
the MPH2 uses 3-phase power, a single low-
voltage phase may cause one or more
undervoltage alarms. The undervoltage alarm is
factory-set to -10% of the minimum input voltage
range on the nameplate; it cannot be changed.
Check for changing load conditions.
Check overcurrent alarm threshold settings.
Check for changing load conditions.
Check overcurrent warning threshold settings.
Check for removal of load.
Check undercurrent alarm threshold settings.
Check for changing load conditions; confirm circuit
breaker actuator is closed. If open, correct loading
condition before pressing circuit breaker actuator
closed again.
Check for changing load conditions.
Check overcurrent warning threshold settings.
Check for changing load conditions.
Check overcurrent alarm threshold settings.

Troubleshooting