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REVO C
1PH from 300A to 800A
User’s manual
Current Limit
The Current Limit is available on REVO C with Phase Angle firing mode only.
It control the firing angle of the thyristor to maintain the three RMS current under the set value.
When the current exceeds this value, the voltage is decreased up to reach the current limit set.
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Set the maximum percent of the nominal current the power control allows. This parameter is in RMS current
by default, but can be set to limit peak current.
Range: 0 to 100% - where 100% is the Unit Current Size
Default: 100%
Example: For the code RC1-300____ 100% = 300A
14.1 Current Limit Setting
The setting of the current limit value can be done in two ways: Digital or Analogic.
• Digital:
Set the parameter from the hardware menu
Set the current limit value by the parameter . from 0 to 100% of the Current. (Operator menu)
• Analogic:
Set the parameter from the hardware menu
The value of the Current Limit is setted with analog input 2 Terminals 11 (-) e 4 (+).
This analog input is 0 – 10V and input impedance 10Kohm.
The settings functions by the analogic input 2 is called also External current limit profile because allows to
change the profile of the Current Limit during the process.
Caution:
this procedure must be performed only by qualified persons.
I load ≤ I limit set
I load > I limit set
Summary of Contents for REVO C
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