Manual - TC.P Quadro
TopControl application
2016-08-05
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V04.52
6
6.4.7.6. Tab
– <PROTECT>
User level: from Advanced User
On the <PROTECT> tab all limit values can be set to protect a load
connected, and also the internal modules from overload.
Example I
2
t parameter
The integral of the load limit from the semiconductors defines the max-
imum current allowed in a semiconductor that is allowed to flow through
the semiconductor in a limited time before the semiconductor is dam-
aged.
A limit value for a load can be derived from this parameter. The square
of the current is included in the calculation.
Calculation example for the Error Limit
I
LoadNom
: Nominal current for the load e.g. 100 A
I
LoadMax
: Maximum overload current: 150 A for 5 s
Error Limit = 𝑡 ∗ (𝐼
𝐿𝑎𝑠𝑡𝑀𝑎𝑥
−𝐼
𝐿𝑎𝑠𝑡𝑁𝑂𝑀
)
2
= 5𝑠 ∗ (150𝐴 − 100𝐴)
2
= 5𝑠 ∗ (50𝐴)
2
= 12500 𝐴
2
𝑠
Damage to the load possible!
Modified parameters can change the safety limits for the TopCon power
supply to such an extent that the following damage may result:
Damage to a load connected.
Avoidance:
Check changes to parameters for safety, prior to saving on
the TopCon power supply.
CAUTION