GW Instek PEL-3111 - Page 178

PEL-3000(H) User Manual
176
CP Mode
Proportional Control:
Input power = rated power × (external
resistance/10).
Inverse Control:
Input power = rated power × (1 - external
resistance/10).

Input
Power
External
Resistance
Rated
Power
0Ω 10kΩ
Proportional control
Inverse control
Note
The inverse configuration is recommended for safety
reasons. In the event that any of the cables become
accidentaly disconnected, the current/voltage/power
input will drop to the minimum. Under similar
circumstances using proportional control, an
unexpectedly high input would result.
Operation
1. Turn the power off from the PEL-3000(H) and
from the load.
2. Connect the external resistance across pins 1
and 3 of the J1 connector.
3. Turn the power on the PEL-3000(H).
4. Set the operating mode and range.
 See page 53 for CC mode.
 See page 55 for CR mode.
 See page 57 for CV mode.
 See page 58 for CP mode.
5. Press
Main
> Configure [F5] > Next Menu [F4]
> External [F3].
6. Set the Control to R for proportional control or
to Rinv for inverse control.