Cosel CHS200, Инструкция по эксплуатации

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Table 4.1.2 Specification of Remote ON/OFF(CHS60,CHS120,CHS300,CHS400,CHS500)
ON/OFF
logic
Between RC and -VIN
Output
voltage
Standard Negative
L level(0 - 0.8V) or short ON
H level(4.0 - 7.0V) or open OFF
Optional -R Positive
L level(0 - 0.8V) or short OFF
H level(4.0 - 7.0V) or open ON
When RC is ”Low” level, fan out current is 0.1mA typ. When Vcc is applied,
use 4.0
[
Vcc
[
7.0V.
¡
When remote ON/OFF function is not used, please short between RC and
-VIN (-R: open between RC and -VIN).
(2.0 [ Vcc [ 7.0V)
IC Relay
Transistor Photo coupler
RC
-VIN
RC
-VIN
RC
-VIN
RC
-VIN
Vcc
Fig.4.1 RC connection example
4.5 Remote sensing
(1) When the remote sensing function is not in use
+S
+VOUT
-S
Load
-VOUT
Short at pin root
Fig.4.2 Connection when the remote sensing is not in use
¡
When the remote sensing function is not in use, it is necessary to confirm
that pins are shorted bS & +VOUT and between -S & -VOUT.
¡
Wire bS & +VOUT and between -S & -VOUT as short as pos-
sible.
Loop wiring should be avoided.
This power supply might become unstable by the noise coming from poor
wiring.
(2)When the remote sensing function is in use
+S
Load
-S
+VOUT
-VOUT
Wire as close as possible
Fig.4.3 Connection when the remote sensing is in use
¡
Twisted-pair wire or shield wire should be used for sensing wire.
¡
Thick wire should be used for wiring between the power supply
and a load.
Line drop should be less than 0.3V.
4 Function
4.1 Overcurrent protection
¡
Over Current Protection (OCP) is built-in and works at 105% of
the rated current or higher. However, use in an overcurrent situa-
tion must be avoided whenever possible.
The output voltage of the power module will recover automatically
when the fault causing overcurrent is corrected.
When the output voltage drops after OCP works, the power mod-
ule enters a ”hiccup mode” where it repeatedly turns on and off at
a certain frequency.
4.2 Overvoltage protection
¡
The overvoltage protection circuit is built-in. The DC input will be
shut down if overvoltage protection is in operation.
The output voltage of the power module will recover automatically
when the fault causing over voltage is corrected.
Remarks :
Please note that devices inside the power supply might fail when
voltage more than rated output voltage is applied to output pin of
the power supply. This could happen when the customer tests the
overvoltage performance of the unit.
4.3 Thermal protection
¡
When the power supply temperature is kept above 120
C
, the
thermal protection will be activated and simultaneously shut down
the output.
The output voltage of the power supply will recover automatically
when the unit is cool down.
¿
-U
¡
Option ”-U” means output is shut down when the abovementioned
protection circuit is activated.
If this happens, protection circuit can be inactivated by cycling
the DC input power off for at least 1 second or toggling Remote
ON/OFF signal.
4.4 Remote ON/OFF
¡
Remote ON/OFF circuit is built-in on the input side (RC).
The ground pin of input side remote ON/OFF circuit is ”-VIN” pin.
Table 4.1.1 Specification of Remote ON/OFF(CHS80,CHS200)
ON/OFF
logic
Between RC and -VIN
Output
voltage
Standard Negative
L level(0 - 0.8V) or short ON
H level(2.0 - 7.0V) or open OFF
Optional -R Positive
L level(0 - 0.8V) or short OFF
H level(2.0 - 7.0V) or open ON
When RC is ”Low” level, fan out current is 0.1mA typ. When Vcc is applied,
use 2.0
[
Vcc
[
7.0V.
CHS-24
DC-DC Converters Bus Converter.Power Module Type
Instruction Manual