GW Instek PSP Series - Manual (Page 19)

PSP SERIES
USER MANUAL
32
Example:
The present voltage limit is at 30V, and the wheel knob status is at
normal, the SU- message is sent to the power supply, the voltage
limit of which will become 29V.
*SI+
Function:
Add one unit to the present current limit setting.
Syntax:
SI+ HEX = 53 49 2B 0D
Explain:
When the message of SI+ is sent to the power supply from
computer, the power supply will add one unit to the present current
limit setting immediately.
Example:
The present current limit is at 3.00A, and the wheel knob status is at
normal, the SI+ message is sent to the power supply, the current
limit of which will become 3.10A.
*SI-
Function:
Subtract one unit from the present current limit setting.
Syntax:
SI- HEX = 53 49 2D 0D
Explain:
When the message of SI- is sent to the power supply from
computer, the power supply will subtract one unit from the present
current limit setting immediately.
PSP SERIES
USER MANUAL
33
Example:
The present current limit is at 3.00A, and the wheel knob status is at
normal, the SI- message is sent to the power supply, the current
limit of which will become 2.90A.
*SP+
Function:
Add one unit to the present load limit setting.
Syntax:
SP+ HEX = 53 50 2B 0D
Explain:
When the message of SP+ is sent to the power supply from
computer, the power supply will add one unit to the present load limit
setting immediately.
Example:
The present load limit is at 100W, and the wheel knob status is at
normal, the SP+ message is sent to the power supply, the load
limit of which will become 101W.
*SP-
Function:
Subtract one unit from the present load limit setting.
Syntax:
SP- HEX = 53 50 2D 0D
Explain:
When the message of SP- is sent to the power supply from
computer, the power supply will subtract one unit from the present
load limit setting immediately.