Softstarters Type PSE18...PSE370 Installation and commissioning manual 1SFC132057M0201
92 Chapter 10
Status
Possible cause
Solution
Motor Overload Protection (EOL)
Red Fault LED steady lighting, and LCD
event code P1.
See chapter 6.1.2.1 about LED status indi-
cators activation for faults and protections.
Remark that time delay for reset can be
long depending on temperature.
1SFC132320F0001
Ready
Run
Protection
Fault
Load on motor higher than motor rating
and corresponding selected EOL Class.
At start
•
Check and correct the reason for the
overload.
•
Increase Initial/End Voltage.
•
Check the motor rating plate for Ie.
•
Increase Current Limit.
•
Make Start Ramp Time shorter.
Too many starts and stops during a short
time.
At start
•
Chose a motor with more power, and
a softstarter rated for higher current.
•
Check and correct the reason for the
overload.
•
Check that the ramp time for start not
is too long.
•
Check that correct EOL Class is used.
The motor has been exposed to an over-
load condition because the current over a
certain time is too high. (The load on the
motor shaft is too high).
Continuous run
•
Check the rating of the plate for Ie.
•
Check operational voltage.
•
Chose a motor with more power, and
a softstarter rated for higher current.
•
Check and correct the reason for the
overload.
•
Check that correct EOL Class is used.
Underload Protection
Red Fault LED steady lighting, and LCD
event code P2.
See chapter 6.1.2.1 about LED status indi-
cators activation for faults and protections.
1SFC132316F0001
Ready
Run
Protection
Fault
The motor current is below set level and
time.
•
Check and correct the reason for the
underload.
•
Check that the setting Ie are accord-
ing to the operation conditions. See
chapter 7.5.1.
•
Check that the Underload Protection
parameter is set according to opera-
tional conditions. Se chapter 7.5.10.
Locked Rotor Protection
Red Fault LED steady lighting, and LCD
event code P3.
See chapter 6.1.2.1 about LED status indi-
cators activation for faults and protections.
1SFC132322F000
1
Ready
Run
Protection
Fault
The motor is running stiff for some reason.
A damaged bearing or a stuck load could
be possible causes.
•
Check the bearings of the motor and
load.
Decrease in operational voltage can give a
higher operational current.
•
Check voltage.
10.7 Protection indications
