GW Instek PEL-3000 Series User Manual - Manual (Page 144)

PEL-3000 User Manual
142
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
0
Ω
10k
Ω
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 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.
4. Set the operating mode and range.
 See page 51 for CC mode.
 See page 53 for CR mode.
 See page 55 for CV mode.
 See page 56 for CP mode.