JUMO 709050 IPC IGBT Power Converter IPC 70/100A Operating Manual - Manual (Page 42)

5 Settings
42 [IGBT Power Converter 70/100A] 02.08
5.11.1 Setting the load fault indication
h Connect the load
h Provide a full control signal (e.g. 20 mA at the control input)
h Adjust the „load fail adjust“ trimmer such that the yellow „load fail“ LED just
extinguishes.
- Turn clockwise = LED lights up
- Turn counter-clockwise = LED extinguishes
h If necessary, continue turning counter-clockwise to reduce the activation
threshold. 1.5 turns of the potentiometer change the load current by
approx. 10% of the converter rated current.
Alternative
setting option: To simulate a load fail, adjust the „load fail adjust“ trimmer such that the yellow
„load fail“ LED lights up.
H
The partial load setting must be made after the current limit has
been set. If the current limit setting is changed, this will also affect
the setting of the partial load fault detection.
This must be corrected accordingly, if necessary.
H
The smallest change in resistance that can be detected is 5 % of the
nominal load resistance.