Remote sensing and local sensing – GW Instek PSH-A Series 360W User Manual User Manual
Page 12
Setup
23
AC power cable requirement
Here is the AC power cable specification, in case of using cables
other than the attached one.
Cable length
≤ 3m
Cable gland
KSS or PG-2013
Cable type
(recommended)
Model: SJT
Type: 3 x 14 AWG stranded copper
Rating: 60°C min, 300V
Diameter: 9.143~10.03 mm
Model:
H05
VV-F
Type: 3G 1.5mm
2
stranded copper
Rating: 300V/500V
Diameter: 8.5 ± 0.2 mm
PSH
User
Manual
24
Remote Sensing and Local Sensing
Remote sensing compensates the cable loss between PSH and load,
up to 0.5V. Use remote sensing whenever the load voltage has to
be accurate.
Local Sensing
(default)
V
SET
= V
OUT
V
OUT
> V
LOAD
V
OUT
V
LOAD
V
OUT
Output
Setting
V
SET
|V
SET
–V
OUT
|
Sense
PSH
Load
The sense terminal is internally connected to the
PSH output terminal. The delta between the
voltage setting level (V
SET)
and the actual output
level (V
OUT)
is compensated. The load terminal
voltage (V
LOAD
) might become lower than the
output due to cable loss.
Remote
Sensing
V
SET
= V
LOAD
V
OUT
> V
SET
PSH
Load
Sense
V
OUT
V
LOAD
V
LOAD
Output
Setting
V
SET
|V
SET
–V
LOAD
|
The sense terminal is connected to the load input
terminal. The delta between the voltage setting
level (V
SET)
and the actual load voltage (V
LOAD)
is
compensated. The output voltage (V
OUT
) might
become higher than the setting due to the
compensation.