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Remote sensing and local sensing – GW Instek PSH-A Series 360W User Manual User Manual

Page 12

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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.