TE2 Series Digital Solid State Soft Starter User Manual 49 | Page
F046 = Ground Fault Trip
Factory Setting = 0 (Disabled)
Range = 5 - 90% of CT value, or 0 (Disabled)
When a value other than 0 is entered in F046, the starter will trip if
current to ground exceeds this percentage of the unit CT value. The CT
value is shown in F074, (see section 5.6.12). This value is different from
the Unit Rating or FLA setting. Following are two examples of Ground
Fault current settings.
Example:
To calculate the ground current trip value in amps, divide the setting of
F046 by the CT Value in F074 then multiply by 100. Example using
TE2-210-BP: The value in F046 = 20, the CT value in F074 = 250. So,
20/250 = 0.08 x 100 = 8A.
If you have a desired trip value in amps and need to determine the
percentage value for F046, simply divide the desired trip ampere value
by 100, then multiply that times the value in F074.
Example: 210A starter desired Ground Fault Trip Level is 8A, The CT
value is F074 is 250. Then, 8 ÷ 100 = 0.08 then x 250 = 20% in F046.
F047 = Ground Fault Trip Delay
Factory Setting = 2 seconds
Range = 1 - 60 seconds
Provides a time delay to prevent nuisance trips from short-
duration transients. Using default setting, if the Ground Fault
current exceeds the level set in F046 for more than 2 seconds,
the starter will trip.
CAUTION:
This method of Ground Fault sensing may not provide adequate
equipment protection in resistance-grounded systems. We
recommend providing external GF protection using a core
balanced Zero Sequence CT for those types of applications.
Consult factory for additional assistance.
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