MEAN WELL DBUF40-24 ETK-159534 Спецификация онлайн [5/7] 845282
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MEAN WELL DBUF40-24 ETK-159534 Спецификация онлайн [5/7] 845282

MEAN WELL DBUF40-24 ETK-159534 Спецификация онлайн [5/7] 845282
Function Manual
2. Operating Diagram 3. Signal Schematics
1. User Elements
LED Indicator Status:
LEDOFF:Capacitors are discharged.
LED ON:Capacitors are fully charged.
LED Flashing slowly (1Hz): Capacitors are getting charged.
LED Flashing quickly (10Hz): Capacitors are getting discharged.
Back-up Threshold Voltage Selectable by Switch:
The unit switches to buffer mode as soon as the voltage falls below 22Vdc.
Unit switches to buffer mode when input voltage decreases by 1Vdc.
Signal Connector:
Vac
(Buffer Module)
E-cap bank
Vout
Ready
Buffering
Inhibit
LED
1Hz 10Hz
Low
Low
High
High
Low
PSU Hold-up Time
t
t
t
t
t
t
t
t
Standby Mode
Buffer Mode
Charging Mode
Vout
+Vs
I
R
B
Inhibit
Ready
Buffering
5.1V
+Vs:10-35Vdc
File Name:DBUF40-24-SPEC 2022-03-18
Note: Factory setting is fixed mode.
(+Vs can connected to DBUF40 “+V” or external voltage
source,Please refer to “Typical Application Notes”)
Status
Ready
Charging
Discharging
R
B
+Vs
+Vs:Supply Voltage
I:Inhibit
R:Ready
B:Buffering
I
Option 1: Fixed mode (Switch in Fix 22Vdc)
Option 2: Dynamic mode (Switch in Vin-1Vdc)
-V -V
+V +V
DBUF40-24
Fix 22Vdc
Vin-1Vdc
-Buffering,Buffering: V(B)>+Vs - 2Vdc; Other mode: V(B)<1Vdc.
-Ready, : V(R)>+Vs - 2Vdc; Unready: V(R)<1Vdc. Charged ready
-Inhibit,+Vs - V(I)<6Vdc: Buffer module ON; +Vs - V(I)>10Vdc: Buffer module .OFF
24V/40A DIN Rail Type Buffer Module

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