Emerson CoreSense Technical Information page 8

LED
flashes Status LED description
count
Low Oil
1
Pressure
2 NA Protection
Discharge Discharge
3
Temp.
Current
4 Sensor
Fault
Communica
5
tion Error
6 NA
7 NA
8 N/A Low Voltage
9 N/A
Imbalance
Table 4
Technical Information
reset
Low Oil
NA
Pressure
Motor
NA 2 min
Trip
Discharge
2 min
Temp. Temp.
NA NA
NA NA
Locked Locked
5 min
Rotor Rotor
Missing Missing
5 min
Phase Phase
Low
5 min
Voltage
Voltage Voltage
5 min
Imbalance
Auto
Lockout
condition
time
Without If
sufficient oil without sufficient oil pressure for 4 seconds.
N/A
pressure for 2 If
minutes without sufficient oil pressure for 2 minutes.
If
off because motor temperature has
NA exceeded set point. (3 series PTCs; 1 input)
(Trips at 4.5K Ohms, and will reset when
below 2.75K Ohms.)
If
temperature probe is open or disconnected.
If
has exceeded set point; compressor is
Exceeds max
turned off for 2 minutes before resetting.
set point
If
(configured in
exceeded set point and the compressor is
EEPROM from
locked out.
iPRO)
(The customer has configured the module
to lock out when the DLT temperature
exceeds the maximum set point.) DLT
probe is FACTORY INSTALLED
If
NA NA disconnected from the module. Compressor
run state is not known by module.
Communication between Control module
and iPro (/System) Controller has been lost.
Communication between Control module
NA NA and Sensor module has been lost.
Configuration miss-match between SW
configuration from iPro and HW (network
mode)
If
start, and excessive current may be present
in the compressor. The compressor is
10 consecutive turned off and will remain off for 5 minutes.
events If
and excessive current may be present in
the compressor. The compressor is locked
out after 10 consecutive events.
If
10 consecutive off due to missing phase.
events If
after 10 consecutive missing phase alarms.
If
10 consecutive off due to low compressor voltage.
events If
out after 10 consecutive low voltage alarms.
If
10 consecutive off due to voltage imbalance.
events If
out after 10 consecutive voltage imbalance.
Status LED troubleshooting information
flashing green, compressor has been
flashing red, compressor has been
flashing orange, compressor is turned
flashing green, the discharge
flashing orange, discharge temperature
flashing red, discharge temperature has
flashing green, current sensor is
flashing orange, compressor failed to
flashing red, compressor failed to start,
flashing orange, compressor is turned
flashing red, the compressor is locked out
flashing orange, compressor is turned
flashing red, the compressor is locked
flashing orange, compressor is turned
flashing red, the compressor is locked
D7.21.2/1011/E
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