Alarm Indications - Emerson Mentor MP Short Manual

9.2

Alarm indications

In any mode an alarm flashes alternately with the data displayed on the 2nd row when
one of the following conditions occur. If action is not taken to eliminate any alarm except
"Autotune", and "PLC" the drive may eventually trip. Alarms flash once every 640ms
except "PLC" which flashes once every 10s. Alarms are not displayed when a
parameter is being edited.
Table 9-2 Alarm indications
Lower display
Hot
The temperature displayed in Pr 7.04 has exceeded the alarm level (see Pr 7.04).
OVLd
The motor I
drive will be tripped and the load on the drive is > motor rated current Pr 5.07 (SE07, 0.28)
Autotune
The autotune procedure has been initialised. 'Auto' and 'tunE' will flash alternatively on the
display.
CLt
Indicates that current limits are active.
PLC
An Onboard PLC program is installed and running. The lower display will flash 'PLC' once
every 10s.
S.OV
Indicates that the over voltage suppressor voltage is within 30V of the trip level
S.rS
Indicates that the external voltage suppressor resistor is in an overload condition
ESt SPd
The drive has lost speed feedback and automatically selected Estimated speed mode. See
Pr 3.55 (Select estimated speed on feedback loss).
126
Heatsink alarm is active
Motor overload
2
t accumulator (Pr 4.19) in the drive has reached 75% of the value at which the
Autotune in progress
Current limit is active
Onboard PLC program is running
Indicated suppressor over voltage
Suppressor resistor overload
Estimated speed selected
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Description
Mentor MP Short Form Guide
Issue Number: 5