ABB MD21 - PTC Protection (M102 Only); PTC Protection Parameters

0 5 . PR OT EC T I O N F U N C T I O N S 51
Function
Setting range 0=Disabled 1=Enabled 3=Alarm only
Default value Disabled
Step value 1
PTC Alarm level
Setting range 1000-10000Ω
Default value 1600Ω
Step value 1Ω
PTC trip level
Setting range 1000-10000Ω
Default value 3600Ω
Step value 1Ω
PTC trip delay
Setting range 1-1800sec
Default value 1sec
Step value 1sec
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PTC protection (M102 only)
PTC protection protects the motor against too-
high temperature by using PTC-sensor embedded
in the stator winding or the bearings. For M102,
use a type A temperature sensor with a
characteristic curve according to IEC 60947-8.
Function
PTC reset level
Setting range 100-10000Ω
Default value 1600Ω
Step value 1Ω
PTC trip reset mode
Setting range 1=Auto 2=Local 3=Remote 4=Remote and local
Default value 4
Step value 1
PTC short circuit alarm level
Setting range 0-250Ω
Default value 10 Ω
Step value 1 Ω
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