Puls QS20.241, QS20.241-C1 Circuit Diagram

Q-Series

12. FUNCTIONAL DIAGRAM

Fig. 12-1 Functional diagram

L

N

Input Fuse
Input Filter
Input Rectifier
Active Inrush Limiter

Temper-

ature
Shut­down

Output
Power

Manager

PFC

Converter

Output

Over-

Voltage

Protection

QS20.241, QS20.241-C1

24V, 20A, SINGLE PHASE INPUT

Output

Voltage

Power

Converter

Output
Voltage
Monitor

Regulator

Output

Filter

DC-ok
Relay

V

OUT

+
+

-

-

Overload
LED

DC-ok
LED

DC-ok
contact

13. FRONT SIDE AND USER ELEMENTS

Fig. 13-1 Front side

Output Terminals

Quick-connect spring-clamp
terminals, no tools required

+ Positive output pole

- Negative output pole

Dual pins per pole

DC ok Relay contact
(NO-contact)

480W Continuous power /
720W Peak power

Input Terminals
Quick-connect spring-clamp
terminals, no tools required
N … Neutral input
L … Line (hot) input

... PE (Protective Earth)
See chapter 14 “Terminals
and Wiring” to choose
appropriate wire gauges

*) Up to 4s of overloading, the power supply delivers continuous output current. After this, the output power is
reduced to nearly zero for approx. 17s before a new start attempt is automatically performed. If the overload has
been cleared, the device will operate normally. If the overload still exists, the output current will be delivered for 2 to
4s (depending on the overload) again followed by a 17s rest time. This cycle is repeated as long as the overload exists.

The red overload LED is permanently on when the overload current is continuously flowing. During the 17s rest
period, the red LED is flashing with a frequency of approx. 1.3Hz.

Output voltage potentiometer
(multi turn potentiometer)
Open the flap to tune the output voltage.
Factory setting: 24.1V

DC-ok LED (green)
Overload LED (red)

Normal mode OFF ON Closed

BonusPower® mode OFF ON Closed

Overload

> 90%)

(V

OUT

Overload
(V

< 90%)

OUT

Short-circuit

= ca. 0V)

(V

OUT

Over- temperature *) OFF

No input power OFF OFF Open

DC-ok LED and DC-ok contact
function synchronized

Overload

LED

OFF ON Closed

*) OFF Open

*) OFF Open

DC-ok

LED

DC-ok

contact

Open

Jan. 2008 / Rev. 1.3 DS-QS20.241-EN
All parameters are specified at 24V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone [phone] Germany

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