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455-461 Series
Threshold current limit
This function is used to
limit the load current to
a
desired value,
independent of the input
signal and the linear current limit.
The "Threshold current limit" input (terminal 14) can be controlled
• b y an external setting potentiometer (connected between terminal 12 and terminal 6,
with the slide contact powering terminal 14 )
• b y an external 0-10 V DC voltage (0 V at terminal 6, " + " at terminal 14).
When the threshold limit (by potentiometer or by voltage) is not used, terminal 14 must be
connected to the 10 V voltage (terminal 12)
directly.
Otherwise, the threshold current limit is
set to zero and the unit cannot discharge.
In this case, the current is limited to 110% of the unit's nominal current.
To adjust the current limit, see page 4.21.
451-461 User Manual
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