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QS5 Power Supply Instruction Manual
Technical Data
Output Voltage
Factory Set
typ.
Output Current
min
min
Output Power
min.
min.
Output Ripple
max.
Over-voltage Protection
max.
AC Input Voltage
-
AC Input Current
max.
DC Input
-
DC Input Current
max.
Power Factor
typ.
AC Inrush Current
max.
Efficiency
typ.
Losses
typ.
Hold-up Time
typ.
Capacitive Loads
-
Inductive Loads
-
Limited Warranty
-
Functional Diagram
L
Input Fuse
Input Filter
N
PFC
Input Rectifier
Converter
Inrush Limiter
Transient Filter
Temper-
Output
ature
Power
Shut-
Manager
down
DC-ok Relay Contact
This feature monitors the output voltage, which is produced by the power supply, and is
independent of a return voltage from a unit which is connected in parallel.
Contact closes as soon as the output voltage reaches the nominal value.
Contact opens as soon as the output voltage dips more than 10%.
Short dips will be extended to a length of 250ms on the relay.
Dips shorter than 1ms will be ignored.
Contact ratings 60Vdc 0.3A, 30Vdc 1A, 30Vac 0.5A, resistive load
V
V
ADJ
OUT
90%
V
ADJ
< 1ms
closed
open
Please note:
The DC-ok feature requires that the output voltage reach the nominal (=adjusted) level after
turn-on in order to function to specification. If this level cannot be achieved, the unit will show
an overload condition. The overload signal will disappear as soon as the adjusted voltage is
reached. This is an important to condition to consider particularly, if the load is a battery or
the power supply is used for N+1 redundant systems.
Environment
Operational temperature
Storage temperature
Humidity
Vibration sinusoidal
Shock
Allowed output current versus
the ambient temperature
Ambient temperature is defined
2cm below the unit.
QS5.241
DC 24-28V
24.1V
5-4.5A
7.5-6.7A
120W
180W
50mVpp
36Vdc
AC 100-240V
, 50-60Hz
-15/+10%
1.4-0.65A
DC 110-300V -20/+20%
1.2-0.45A
0.99-0.91
2
15A peak, 1A
s
91.6 / 92.7%
11.0 / 9.4W
34 / 65ms
No limitations
No limitations
3 year
Output
Voltage
Regulator
Power
Output
Filter
Converter
Output
Output
Over-
Voltage
Voltage
Monitor
DC ok
Protection
Relay
10%
250ms
> 1ms
open
-25 to +70°C
De-rate above +60°C
-40 to +85° C
Storage, transport
5 to 95% RH
No condensation allowed
2g
IEC 60068-2-6
30g 6ms, 20g 11ms
IEC 60068-2-27
150%
for ty p. 4s
125%
100%
continuous
75%
50%
25%
Ambient Temperature
0%
-40°C -20°C 0°C
20°C 40°C 60°C 80°C
externally adjustable
at full rated load
continuous
for typ. 4 sec
continuous
for typ. 4 sec
BW DC to 20MHz
TN, TT and IT mains
at 100 - 240Vac
at 110 - 300Vdc
at 100 - 230Vac
at 100 - 240Vac
at 120 / 230Vac
at 120 / 230Vac
at 120 / 230Vac
Dielectric Strength
Input
L
V
OUT
N
+
+
A
-
Earth
-
Over-
load
DC
ok
DC
ok
Overload Performance
28V
24V
20V
16V
12V
8V
4V
0V
0A
Output characteristic (typ.)
Curve is valid for the 24V unit. Units with
output voltages other than 24V have an
equivalent and proportional performance.
Repetitive pulse loading: Multiple pulses can be supported as long as the average (R.M.S.)
output current stays below the specified continuous output current. If it is higher, the unit will
respond with a thermal shut-down.
P
OUT
closed
max.
150%
100%
0%
Protection
Output
Degree of protection
Class of protection
Degree of pollution
Over-temperature protection
Output over-voltage protection
Over-voltage category
Penetration protection
Internal input fuse
External fuse on input
The unit is tested and approved for branch circuits up to 20A. External protection is only
required, if the supplying branch has an ampacity greater than this. In some countries local
regulations might apply. Check also local codes and local requirements. If an external fuse is
necessary or utilized, a minimum value of B6A or C3A is required to avoid a wrong tripping of
the circuit breaker.
Type tests and factory tests:
DC-ok
Conducted by the manufacturer.
B
Do not repeat test in field!
Field test rules:
(1) Use appropriate test equipment which
D
apply the voltage with a slow ramp!
(2) Connect L and N together as well as all
Output
output poles.
C
(3) Use only AC test-voltages with 50/60Hz.
+
The output voltage is floating and has no ohmic
-
reference to ground.
A
Type Test
60s
2500Vac
Factory Test
5s
2500Vac
Field Test
5s
2000Vac
The unit is designed to support loads with a higher short-term
power requirement without damage or shutdown.
10s
for 4s
continuous
Output Current
2A
4A
6A
8A 10A 12A
Bonus time
Duration until the output starts dipping. Bonus
Time is hardware controlled.
P
T
T
PEAK
PEAK
0
P
0
Overload, no-load, short-circuit proof
IP 20
I
2
yes
yes
III
>3.5mm
T3.15A Device protection, not externally accessible
B
C
D
3000Vac
500Vac
500Vac
2500Vac
500Vac
500Vac
2000Vac
500Vac
500Vac
8s
max.
6s
4s
min.
2s
Output Current
0s
110% 120% 130% 140% 150% 160%
Examples for pulse load
compatibility:
P
P
T
T
PEAK
0
PEAK
0
180W
120W
1s
>25s
180W
0W
1s
>1.3s
180W
60W
0.1s
>0.16s
180W
60W
1s
>1.6s
t
180W
60W
3s
>4.9s
t
EN/IEC 60529
PE (Ground) connection required!
EN 50178, not conductive
Output shut-down with automatic restart
Output shut-down with automatic restart
EN 50178
e.g. screws, small parts ...
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