Locked Rotor Protection; Locked Rotor Protection Time - ABB PST30 Installation And Maintenance Manual

Low Voltage Products & Systems
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Chapter 10
Functions
10:17 Overload protection, type of operation
Path in menu:
Menu/SETTINGS/Functional Settings/
Protections/Overload/OL Op
This parameter makes it possible to select between three different actions when the protec-
tion is activated. It is active only if the motor overload protection is selected.
Parameter text
OL Class R
10:18 Locked rotor protection
Path in menu:
Menu/SETTINGS/Functional Settings/
Protections/Locked Rotor
If the motor current exceeds the set level and the set time when the motor is running at full
voltage, this protection is activated. The protection starts monitoring when full voltage is
applied to the motor.
Parameter text
Locked rotor
10:19 Locked rotor protection, trip level
Path in menu:
Menu/SETTINGS/Functional Settings/
Protections/Locked Rotor/Lock R Lev
This function makes it possible to set the level of the locked rotor protection. It is active only
if Locked rotor protection is selected.
Parameter text
Lock R Lev
10:20 Locked rotor protection time
Path in menu:
Menu/SETTINGS/Functional Settings/
Protections/Locked Rotor/Lock R Time
This parameter makes it possible to set the delay time from detection until activation of the
protection. It is active only if Locked rotor protection is selected.
Parameter text
Lock R Time
10:21 Locked rotor protection, type of operation
Path in menu:
Menu/SETTINGS/Functional Settings/
Protections/Locked Rotor/Lock R Op
This parameter makes it possible to select between three different actions when the protec-
tion is activated. It is active only if the Locked rotor protection is selected.
Parameter text
Lock R Op
Stop-M The motor stops and a manual reset is required before restart.
Stop-A The motor stops and an automatic reset is performed when the fault
disappears (motor temp <80%)
Ind The motor continues to run but a fault indication is given
Default value
10
Default value
No
Default value
4.0 x Ie
Default value
1.0s
Stop-M The motor stops and a manual reset is required before restart.
Stop-A The motor stops and an automatic reset is performed when the fault
disappears
Ind The motor continues to run but a fault indication is given.
Default value
Stop-M
Setting range Description
Overload class, Dual
10A, 10, 20, 30
type, Run class
Setting range Description
Yes, No

Locked rotor protection

Setting range Description
Trip level for locked
0.5...8.1 xle
rotor protection
Setting range Description
Trip time for locked
0.2...10.0s
rotor protection
Setting range Description
Type of operation for
Stop-M, Stop-A, Ind
locked rotor protection
1SXU 132 021 M0201
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10.7