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Q-Series
QS40.481
48V, 20A, S INGLE P HASE I NPUT
G
ENERAL
D
ESCRIPTION
The most outstanding features of this Dimension
QS40.481 DIN-rail power supply are the extremely high efficiency and the small size, which are achieved by a synchronous rectification, a bridgeless PFC circuit and additional unique design details.
Large power reserves of 150% and built-in large sized output capacitors support the starting of heavy loads such as DC motors or capacitive loads. In many cases this allows the use of a unit from a lower wattage class which saves space and money.
High immunity to transients and power surges as well as low electromagnetic emissions makes usage in nearly every environment possible.
The integrated input fuse as well as the near zero input inrush current make installation and usage simple.
Diagnostics are easy due to the DC-OK relay, a green
DC-OK LED and the red overload LED.
A large international approval package for a variety of applications makes this unit suitable for nearly every application.
O
RDER
N
UMBERS
Power Supply QS40.481
Accessory ZM2.WALL
UF20.481
YR40.482
48-54V Standard unit
Wall mount bracket
Buffer unit
Redundancy module
P
OWER
S
UPPLY
AC 100-240V Wide-range Input
Width only 125mm, Weight only 1.9kg
95.0% Full Load and Excellent Partial Load Efficiencies
50% BonusPower ® , 1440W for up to 4s
55A High Peak Current for 10ms for Easy Fuse Tripping
Safe Hiccup PLUS Overload Mode
Active PFC (Power Factor Correction)
Negligible Low Input Inrush Current Surge
Full Power Between -25°C and +60°C
Current Sharing Feature for Parallel Use
Internal Data Logging for Troubleshooting Included.
Remote Control of Output Voltage
DC-OK Relay Contact
Shut-down Input
ATEX and IECEx Approved
3 Year Warranty
S
HORT
-
FORM
D
ATA
Output voltage DC 48V
Adjustment range 48 - 54Vdc
Output current 20 – 17.8A
30 – 26.7A
Output power
Output ripple
Input voltage
Mains frequency
AC Input current
960W
1440W
< 150mVpp
50-60Hz
8.6 / 4.5A nominal continuous short term (4s) continuous short term (4s)
20Hz to 20MHz
AC 100-240V -15%/+10%
±6% at 120 / 230Vac
Power factor 0.99 / 0.99 at 120 / 230Vac
AC Inrush current 17 / 11A peak at 120 / 230Vac
Efficiency
Losses
93.9 / 95.0%
62.4 / 50.5W at 120 / 230Vac at 120 / 230Vac
Temperature range -25°C to +70°C operational
Derating 24W/°C +60 to +70°C
Hold-up time
between 85-90Vac see chapter 18
27 / 27ms at 120 / 230Vac
Dimensions
Weight
125x124x127mm WxHxD
1900g / 4.2lb
M
ARKINGS
UL 508 UL 60950-1
Class I Div2 Marine
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
1/31
Q-Series
QS40.481
48V, 20A, S INGLE P HASE I NPUT
I
NDEX
Page
Intended Use .......................................................3
Installation Requirements ...................................3
AC-Input...............................................................5
Input Inrush Current ...........................................6
DC-Input...............................................................6
Output .................................................................7
Hold-up Time .......................................................9
DC-OK Relay Contact ........................................ 10
Shut-down Input ............................................... 10
Remote Control of Output Voltage ................. 11
Internal Data Logging ....................................... 11
Efficiency and Power Losses.............................. 12
Lifetime Expectancy and MTBF ......................... 13
Functional Diagram ........................................... 13
Terminals and Wiring ........................................ 14
Front Side and User Elements ........................... 15
EMC .................................................................... 16
Environment ...................................................... 17
Protection Features ........................................... 18
Safety Features .................................................. 18
Dielectric Strength ............................................ 19
Approvals and Fulfilled Standard ..................... 20
Page
Regulatory Compliance .................................... 21
Physical Dimensions and Weight ..................... 22
Accessories ........................................................ 23
ZM2.WALL - Wall mounting bracket ....... 23
UF20.481 - Buffer module ........................ 23
YR40.482 - Redundancy Module .............. 24
Application Notes ............................................. 25
Repetitive Pulse Loading .......................... 25
Peak Current Capability ........................... 26
External Input Protection ......................... 26
Charging of Batteries ............................... 27
Output Circuit Breakers ............................ 27
Parallel Use to Increase Output Power .... 28
Parallel Use for Redundancy .................... 28
Series Operation ....................................... 29
Inductive and Capacitive Loads................ 29
Back-feeding Loads .................................. 29
Operation on Two Phases ........................ 30
Use in a Tightly Sealed Enclosure ............ 30
Mounting Orientations ............................ 31
The information presented in this document is believed to be accurate and reliable and may change without notice.
No part of this document may be reproduced or utilized in any form without permission in writing from the publisher.
T
ERMINOLOGY AND
A
BREVIATIONS
PE and symbol PE is the abbreviation for P rotective E arth and has the same meaning as the symbol .
Earth, Ground
T.b.d.
AC 230V
This document uses the term “earth” which is the same as the U.S. term “ground”.
To be defined, value or description will follow later.
A figure displayed with the AC or DC before the value represents a nominal voltage with standard tolerances (usually ±15%) included.
E.g.: DC 12V describes a 12V battery disregarding whether it is full (13.7V) or flat (10V)
230Vac A figure with the unit (Vac) at the end is a momentary figure without any additional tolerances included.
As long as not otherwise stated, AC 230V parameters are valid at 50Hz mains frequency. 50Hz vs. 60Hz may shall should
A key word indicating flexibility of choice with no implied preference.
A key word indicating a mandatory requirement.
A key word indicating flexibility of choice with a strongly preferred implementation.
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
2/31
Q-Series
QS40.481
48V, 20A, S INGLE P HASE I NPUT
1.
I
NTENDED
U
SE
This device is designed for installation in an enclosure and is intended for commercial use, such as in industrial control, process control, monitoring and measurement equipment or the like.
Do not use this device in equipment, where malfunctioning may cause severe personal injury or threaten human life without additional appropriate safety devices, that are suited for the end application.
If this device is used in a manner outside of its specification, the protection provided by the device may be impaired.
2.
I
NSTALLATION
R
EQUIREMENTS
WARNING
Risk of electrical shock, fire, personal injury or death.
- Turn power off before working on the device and protect against inadvertent re-powering.
- Do not open, modify or repair the device.
- Use caution to prevent any foreign objects from entering into the housing.
- Do not use in wet locations or in areas where moisture or condensation can be expected.
- Do not touch during power-on, and immediately after power-off. Hot surface may cause burns.
Obey the following installation instructions:
This device may only be installed and put into operation by qualified personnel.
This device does not contain serviceable parts. The tripping of an internal fuse is caused by an internal defect.
If damage or malfunction should occur during installation or operation, immediately turn power off and send unit to the factory for inspection.
Install device in an enclosure providing protection against electrical, mechanical and fire hazards.
Install the device onto a DIN-rail according to EN 60715 with the input terminals on the bottom of the device. Other mounting orientations require a reduction in output current.
Make sure that the wiring is correct by following all local and national codes. Use appropriate copper cables that are designed for a minimum operating temperature of 60°C for ambient temperatures up to +45°C, 75°C for ambient temperatures up to +60°C and 90°C for ambient temperatures up to +70°C. Ensure that all strands of a stranded wire enter the terminal connection. Unused screw terminals should be securely tightened. Use ferrules for wires on the input terminals.
The device is designed for pollution degree 2 areas in controlled environments. No condensation or frost is allowed.
The enclosure of the device provides a degree of protection of IP20. The enclosure does not provide protection against spilled liquids.
The device is designed for overvoltage category II zones.
The device is designed as “Class of Protection I” equipment according to IEC 61140. Do not use without a proper PE
(Protective Earth) connection.
The device is suitable to be supplied from TN, TT or IT mains networks. The continuous voltage between the input terminal and the PE potential must not exceed 276Vac.
A disconnecting means shall be provided for the input of the device.
The device is designed for convection cooling and does not require an external fan. Do not obstruct airflow and do not cover ventilation grid!
The device is designed for altitudes up to 4000m (13125ft). Above 2000m (6560ft) a reduction in output current is required.
Keep the following minimum installation clearances: 40mm on top, 20mm on the bottom, 5mm left and right side.
Increase the 5mm to 15mm in case the adjacent device is a heat source. When the device is permanently loaded with less than 50%, the 5mm can be reduced to zero.
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
3/31
Q-Series 48V, 20A, S
QS40.481
INGLE P HASE I NPUT
The device is designed, tested and approved for branch circuits up to 30A (UL) and 32A (IEC) without additional protection device. If an external fuse is utilized, do not use circuit breakers smaller than 16A B- or C-Characteristic to avoid a nuisance tripping of the circuit breaker.
The maximum surrounding air temperature is +70°C (+158°F). The operational temperature is the same as the ambient or surrounding air temperature and is defined 2cm below the device.
The device is designed to operate in areas between 5% and 95% relative humidity.
Installation Instructions for Hazardous Location Areas
The device is suitable for use in Class I Division 2 Groups A, B, C, D locations and for use in Group II
Category 3 (Zone 2) environments.
Classification: ATEX: EPS 14 ATEX 1 638 X, II 3G EX nA nC IIC T3 Gc / IECEx EPS 14.0007X.
WARNING EXPLOSION HAZARDS!
Substitution of components may impair suitability for this environment. Do not disconnect the unit or operate the voltage adjustment or S/P jumper unless power has been switched off or the area is known to be non-hazardous.
A suitable enclosure must be provided for the end product which has a minimum protection of IP54 and fulfils the requirements of the EN 60079-0.
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
4/31
Q-Series
QS40.481
48V, 20A, S INGLE P HASE I NPUT
3.
AC-I
NPUT
AC input
AC input range nom. AC 100-240V
90-264Vac
85-90Vac
60-85Vac
0-85Vac
264-300Vac suitable for TN, TT and IT mains networks continuous operation
< 55°C ambient temperature continuously allowed
> 55°C ambient temperature short term or with output
full power for up to 200ms no damage to the unit
< 500ms
Allowed voltage L or N to earth max. 300Vac
Input frequency
Turn-on voltage
Shut-down voltage
External input protection nom. typ. typ.
50–60Hz
80Vac
74Vac continuous, IEC 62103
±6%
See recommendations in chapter 4.3.
Input current
Power factor *)
Crest factor **)
Rise time
Start-up delay
Turn-on overshoot typ. typ. typ. typ. typ. typ. max.
AC 100V
10.5A
0.99
1.47
800ms
16ms
55ms
100mV
AC 120V
8.6A
0.99
1.53
750ms
16ms
55ms
100mV
AC 230V
4.5A
0.99
1.56
700ms
16ms
55ms
100mV
at 48V, 20A
at 48V, 20A, resistive load,
at 48V, 20A, resistive load,
20mF see Fig. 3-2 see Fig. 3-2
*) The power factor is the ratio of the true (or real) power to the apparent power in an AC circuit.
**) The crest factor is the mathematical ratio of the peak value to RMS value of the input current waveform.
Fig. 3-1 Input voltage range Fig. 3-2 Turn-on behavior, definitions
P
OUT Rated input range
Input
Voltage
74 80 85
V
IN
264Vac
Fig. 3-3 Input current vs. output load at 48V
Input Current, typ.
12A
10
8
6
A: 100Vac
B: 120Vac
C: 230Vac
4
2
0
A
B
C
Output Current
2 4 6 8 10 12 14 16 18 20A
Output
Voltage
- 5%
Start-up delay
Rise
Time
Fig. 3-4 Power factor vs. output load at 48V
Power Factor, typ.
1.0
A
0.95
B
0.9
0.85
A: 100Vac
B: 120Vac
C: 230Vac
0.8
C
Output Current
0.75
2 4 6 8 10 12 14 16 18 20A
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
5/31
Q-Series
QS40.481
48V, 20A, S INGLE P HASE I NPUT
4.
I
NPUT
I
NRUSH
C
URRENT
The power supply is equipped with an active inrush current limitation circuit, which limits the input inrush current after turn-on to a negligible low value. The input current is usually smaller than the steady state input current.
Inrush current
Inrush energy
*) max. typ. max.
AC 100V
25A
20A
5A peak peak
2 s
AC 120V
22A
17A
5A peak peak
2 s
AC 230V
16A peak
11A
5A peak
2 s over entire temperature range; mains interruptions > 1s over entire temperature range; mains interruptions > 1s over entire temperature range; mains interruptions > 1s
*) The charging current into EMI suppression capacitors is disregarded in the first microseconds after switch-on.
Fig. 4-1 Typical turn-on behaviour at nominal load and 25°C ambient temperature
5.
DC-I
NPUT
Do not operate this power supply with DC-input voltage. Check the CPS20.481-D1 unit instead. Two CPS20.241-D1 units in parallel might be necessary.
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
6/31
Q-Series
QS40.481
48V, 20A, S INGLE P HASE I NPUT
6.
O
UTPUT
Output voltage
Adjustment range
Factory setting
Line regulation
Load regulation
Ripple and noise voltage
Output current nom. DC 48V typ. typ. typ. max. max. nom. nom. nom. nom. typ.
48-54Vdc max. 56Vdc ****)
48.0Vdc
46.0Vdc
48.0Vdc
10mV max. 50mV typ. 2000mV
150mVpp
20A
17.8A
30A
26.7A
55A guaranteed at clockwise end position of potentiometer
±0.2%, at full load, cold unit, in “single use” mode
±0.5%, at full load, cold unit, in “parallel use” mode at no load, cold unit, in “parallel use” mode
85-300Vac in “single use” mode: static value, 0A
in “parallel use” mode: static value, 0A 20A,
20Hz to 20MHz, 50Ohm
short term available BonusPower ®*) , at 48V
for typical 4s, see Fig. 6-1 and Fig. 6-2
short term available BonusPower ®*) , at 54V
for typical 4s, see Fig. 6-1 and Fig. 6-2 up to 10ms, output voltage stays above 40V, see Fig.
6-4, This peak current is available once every second.
See chapter 4.2 for more peak current measurements.
Output power
BonusPower ® time
BonusPower ® recovery time
Overload behavior
Short-circuit current nom. 960W nom. 1440W *) typ. typ.
4s
7s continuously available at 48-54V short term available BonusPower ®*) at 48-54V
cont. current min. 30A ***)
output voltage > 40Vdc, see Fig. 6-1
Hiccup PLUS mode **)
output voltage < 40Vdc, see Fig. 6-1 load impedance 50mOhm, see Fig. 6-3
max. 35A max.
***)
11.5A
load impedance 50mOhm, see Fig. 6-3
average (R.M.S.) current, load impedance 50mOhm, see
typ. 62A
up to 10ms, load impedance <10mOhm, see Fig. 6-4
Output capacitance typ. 3 700µF included in the power supply
*) BonusPower ® , short term power capability (up to typ. 4s)
The power supply is designed to support loads with a higher short-term power requirement without damage or shutdown. The shortterm duration is hardware controlled by an output power manager. This BonusPower ®
can be found in chapter 4.1. If the power supply is loaded longer with the BonusPower
is repeatedly available. Detailed information
® than shown in the Bonus-time diagram (see
voltage falls below approx. 40V (due to the current regulating mode at overload), the unit shuts-off and makes periodical restart attempts. This behavior is called hiccup mode which is described below. If the voltage is above 40V, the unit continuously delivers current.
**) Hiccup PLUS Mode
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
current is present on the output.
***) Discharge current of output capacitors is not included.
****) This is the maximum output voltage which can occur at the clockwise end position of the potentiometer due to tolerances. It is not guaranteed value which can be achieved. The typical value is about 55V.
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
7/31
Q-Series 48V, 20A, S
QS40.481
INGLE P HASE I
Fig. 6-1 Output voltage vs. output current in
“single use” mode, typ.
Output Voltage
56V
48
A
40
32
24 A
16
8
0
B Short-term (4s) to curve
A
0 5
Adjustment Range
A
Hiccup mode
10 15 20
B
B
25 30 35A
Output Current
Fig. 6-2 Output voltage vs. output current in
“parallel use” mode, typ.
Output Voltage (Parallel Use, typ.)
56V
54V
Adjustment Range
52V
50V
48V
46V
Continuously allowed
Factory setting
Bonus
Power
44V
42V
0 5 10 15 20 25 30A
Output Current
Output
Current
Normal operation
35A
0
Fig. 6-3 Short-circuit on output, Hiccup PLUS mode, typ.
2s 17s
Short -circuit
2s 17s 2s 17s
Normal operation t
Fig. 6-4 Dynamic overcurrent capability, typ.
Output Voltage (dynamic behavior, <10ms)
54V Adjustment
Range
48
40
32
24
16
8
0
Output Current
0 10 20 30 40 50 60 70A
Fig. 6-5 Bonus time vs. output power Fig. 6-6 BonusPower ® recovery time
Bonus Time
5s max.
Power
Demand
Limitation by
Power Manager
4
100%
3 min.
t
2 Bonus
Time
Recovery Time
Bonus Power disabled
1
Output
Voltage
0
100 110
Output Power
120 130 140 150 160 170% t
The BonusPower ® is available as soon as power comes on and after the end of an output short circuit or output overload.
Fig. 6-7 BonusPower ® after input turn-on
Input
Voltage
Fig. 6-8 BonusPower ® after output short
Short of
Output
Output
Voltage
Output
Voltage
100%
150% Bonus
Power
Output
Power 100%
150%
Bonus
Power
Output
Power
NPUT
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
8/31
Q-Series
7.
H
OLD
-
UP
T
IME
Hold-up Time typ. min. typ. min.
Fig. 7-1 Hold-up time vs. input voltage
Hold-up Time
60ms
50ms
40ms
30ms
20ms
10ms
0
90 120 155
48V, 10A, typ.
48V, 10A, min.
48V, 20A, typ.
48V, 20A, min.
Input Voltage
190 230Vac
AC 100V
54ms
45ms
27ms
23ms
AC 120V
54ms
45ms
27ms
23ms
Output
Voltage
Hold-up Time
QS40.481
48V, 20A, S INGLE P HASE I NPUT
AC 230V
54ms
45ms
27ms
23ms
at 48V, 10A, see Fig. 7-1 at 48V, 20A, see Fig. 7-1 at 48V, 20A, see Fig. 7-1
Fig. 7-2 Shut-down behavior, definitions
Zero Transition
Input
Voltage
- 5%
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
9/31
Q-Series
QS40.481
48V, 20A, S INGLE P HASE I NPUT
8.
DC-OK R
ELAY
C
ONTACT
This feature monitors the output voltage, which is produced by the power supply itself. It is independent of a back-fed voltage from a unit connected in parallel to the power supply output.
Contact closes
Contact opens
Contact re-closes
Contact ratings
Isolation voltage
As soon as the output voltage reaches 90% of the adjusted output voltage.
As soon as the output voltage dips more than 10% below the adjusted output voltage.
Short dips will be extended to a signal length of 250ms. Dips shorter than 1ms will be ignored.
As soon as the output voltage exceeds 90% of the adjusted voltage. max 60Vdc 0.3A, 30Vdc 1A, 30Vac 0.5A resistive load min 1mA at 5Vdc min. permissible load
See dielectric strength table in section 21.
Fig. 8-1 DC-ok relay contact behavior
V
OUT
= V
ADJ
10%
0.9* V
ADJ
<
1ms
>
1ms 250ms open closed open closed
9.
S
HUT
-
DOWN
I
NPUT
This feature allows a switch-off of the output of the power supply with a signal switch or an external voltage. The shut-down occurs immediately while the turn-on is delayed up to 350ms. In a shut-down condition, the output voltage is <4V and the output power is <0.5W.
The voltage between different minus pole output terminals must be below 1V when units are connected in parallel. In a series operation of multiple power supplies only wiring option “A” with individual signal switches is allowed.
Please note:
- Option C requires a current sink capability of the voltage source. Do not use a blocking diode.
- The shut-down function has no safety feature included.
Fig. 9-1 Activation of the shut-down input
Option A:
OFF: linked
ON : open
15
16
Shut-
Input
Option B:
(via open collector)
OFF: I > 0.3mA
ON : I < 0.1mA
n.c.
I
15
16 down
Input
-
Option C:
(via external voltage
OFF: U < 1V
ON : U = 4 -29V
U n.c.
+
15
16
Shut-
Input
-
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
10/31
Q-Series
QS40.481
48V, 20A, S INGLE P HASE I NPUT
10.
R
EMOTE
C
ONTROL OF
O
UTPUT
V
OLTAGE
The shut-down input can also be used to remotely adjust the output voltage between typically 44Vdc and 54Vdc. All other functions of shut-down input remain the same.
The control voltage is referenced to the main ground (negative output voltage)
Fig. 10-1 Remote control of the output voltage Fig. 10-2 Applying the control voltage
Output Voltage
56V
52V
48V
44V
40V
36V
32V
28V
24V
0V 5V
Potentiometer:
54V setting
48V setting
10V
Control Voltage
Control
Voltage
+ n.c.
15
16
Shutdown
Input
-
Instructions:
1. Set the unit into “Single Use” mode
2. Set the output voltage adjustment (48-54V) to the maximum desired voltage.
3. Apply a control voltage to reduce the output voltage
11.
I
NTERNAL
D
ATA
L
OGGING
A protected microcontroller inside the power supply acquires and stores operating data during the life of the unit. The data can be downloaded with a small tool and special software by the PULS service and repair personnel, even when the unit is defect. The data allows for better troubleshooting. Analysis of what happened before a failure can be determined much more accurately.
Acquired data:
- Family name of unit (QS40), revision of firmware
- Operational hours
- Expired portion of lifetime (combination of temperature and period of time)
- Maximum ambient temperatures with timestamp (max. 47 values)
- Maximal input voltages with timestamp (max. 47 values) and type of input voltage (AC or DC)
- Failure report (various internal errors)
- Number and timestamp of input overvoltage transients
- Number and timestamp of over-temperature shut-downs
- Number of turn-on sequences
The data will be acquired with a fixed sampling rate unless the peak detectors do trigger due to an abnormal condition. In such cases, the abnormal condition will be captured. Furthermore, data will be acquired every time shortly before the unit switches off.
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
11/31
Q-Series
QS40.481
48V, 20A, S INGLE P HASE I NPUT
12.
E
FFICIENCY AND
P
OWER
L
OSSES
Efficiency typ.
AC 100V
93.5%
AC 120V
93.9%
AC 230V
95.0% at 48V, 20A
Average efficiency
Power losses
*) typ. typ. typ. typ. typ.
92.9%
3.6W
13.5W
35.6W
66.7W
93.3%
3.5W
12.8W
34.0W
62.4W
93.9%
3.3W
12.8W
30.1W
50.5W
25% at 5A, 25% at 10A, 25% at 15A. 25% at 20A with activated shut-down at 48V, 0A (no load) at 48V, 10A (half load) at 48V, 20A (full load)
*) The average efficiency is an assumption for a typical application where the power supply is loaded with 25% of the nominal load for 25% of the time, 50% of the nominal load for another 25% of the time, 75% of the nominal load for another 25% of the time and with 100% of the nominal load for the rest of the time.
Fig. 12-1 Efficiency vs. output current at 48V, typ.
Efficiency
96%
95
94
93
92
91
90
89
88
Output Current
230Vac
120Vac
100Vac
4 6 8 10 12 14 16 18 20A
Fig. 12-2 Losses vs. output current at 48V, typ.
Power Losses
80W
70
60
50
40
30
20
10
0
100Vac
120Vac
230Vac
Output Current
0 2 4 6 8 10 12 14 16 16 20A
Fig. 12-3 Efficiency vs. input voltage at 48V,
20A, typ.
Efficiency
95%
94
93
92
91
90
89
85 120
Input Voltage
155 190 225 260Vac
Fig. 12-4 Losses vs. input voltage at 48V, 20A, typ.
Power Losses
80W
70
60
50
40
30
20
85 120
Input Voltage
155 190 225 260Vac
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
12/31
Q-Series
QS40.481
48V, 20A, S INGLE P HASE I NPUT
13.
L
IFETIME
E
XPECTANCY AND
MTBF
Calculated lifetime expectancy
MTBF
MTBF
**)
**)
SN 29500, IEC 61709
MTBF **) MIL HDBK 217F
Ground Benign
MIL HDBK 217F
Ground Fixed
*)
AC 100V
299 000h *)
106 000h
180 000h
64 000h
*)
491 000h
274 000h
170 000h
126 000h
36 000h
27 000h
AC 120V
305 000h
108 000h
193 000h
68 000h
481 000h
269 000h
171 000h
127 000h
36 000h
27 000h
*)
*)
AC 230V
327 000h
253 000h
90 000h
39 000h
30 000h
*)
116 000h
*)
537 000h
300 000h
183 000h
137 000h at 48V, 10A and 25°C at 48V, 10A and 40°C at 48V, 20A and 25°C at 48V, 20A and 40°C at 48V, 20A and 25°C at 48V, 20A and 40°C at 48V, 20A and 25°C;
Ground Benign GB25 at 48V, 20A and 40°C;
Ground Benign GB40 at 48V, 20A and 25°C;
Ground Fixed GF25 at 48V, 20A and 40°C;
Ground Fixed GF40
*) The calculated lifetime expectancy shown in the table indicates the minimum operating hours (service life) and is determined by the lifetime expectancy of the built-in electrolytic capacitors. Lifetime expectancy is specified in operational hours and is calculated according to the capacitor’s manufacturer specification. The manufacturer of the electrolytic capacitors only guarantees a maximum life of up to 15 years (131 400h). Any number exceeding this value is a calculated theoretical lifetime which can be used to compare devices.
**) MTBF stands for M ean T ime B etween F ailure, which is calculated according to statistical device failures, and indicates reliability of a device. It is the statistical representation of the likelihood of a unit to fail and does not necessarily represent the life of a product.
The MTBF figure is a statistical representation of the likelihood of a device to fail. A MTBF figure of e.g. 1 000 000h means that statistically one unit will fail every 100 hours if 10 000 units are installed in the field. However, it can not be determined if the failed unit has been running for 50 000h or only for 100h.
14.
F
UNCTIONAL
D
IAGRAM
Fig. 14-1 Functional diagram
L
N
Input Fuse
Input Filter
Inrush Limiter
Temperature
Shutdown
Output
Power
Manager
Event Datalogger
Bridgeless
PFC
Converter
Output
Over-
Voltage
Protection
Power
Converter
Output
Voltage
Monitor
Output
Voltage
Regulator
Output
Filter
DC ok
Relay
Shutdown
Single /
Parallel
V
OUT
-
-
+
+
Overload
LED
DC-ok
LED
13
14
DC-ok
Contact
15
16
Shut-down
Input &
Remote
Control
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
13/31
Q-Series
QS40.481
48V, 20A, S INGLE P HASE I NPUT
15.
T
ERMINALS AND
W
IRING
The terminals are IP20 Finger safe constructed and suitable for field and factory wiring.
Type
Input screw termination
Solid wire
Stranded wire
American Wire Gauge
Max. wire diameter
0.5-6mm 2
0.5-4mm 2
AWG 20-10
2.8mm
(including ferrules)
7mm / 0.28inch Wire stripping length
Screwdriver 3.5mm slotted or crosshead No 2
Recommended tightening torque 1Nm, 9lb.in
Output screw termination
0.5-16mm 2
0.5-10mm 2
AWG 22-8
5.2mm
(including ferrules)
12mm / 0. 5inch
3.5mm or 5mm slotted or cross-head No 2
2.3Nm, 20.5lb.in
DC-OK, Shut-down spring-clamp termination
0.15-1.5mm
2
0.15-1.5mm
2
AWG 26-14
1.5mm
(including ferrules)
7mm / 0.28inch
3mm slotted
(to open the spring)
Not applicable
Instructions: a) Use appropriate copper cables that are designed for minimum operating temperatures of:
60°C for ambient up to 45°C and
75°C for ambient up to 60°C minimum
90°C for ambient up to 70°C minimum. b) Follow national installation codes and installation regulations! c) Ensure that all strands of a stranded wire enter the terminal connection! d) Do not use the unit without PE connection. e) Unused terminal compartments should be securely tightened. f) Ferrules are allowed.
Daisy chaining:
Daisy chaining (jumping from one power supply output to the next) is allowed as long as the average output current through one terminal pin does not exceed 54A. If the current is higher, use a separate distribution terminal block as
Fig. 15-1 Daisy chaining of outputs Fig. 15-2 Using distribution terminals
Distribution
Terminals
Power
Supply
+ +
- -
Output
Power
Supply
+ +
- -
Output
Load
+
-
Power
Supply
+ +
- -
Output
Power
Supply
+ +
- -
Output
Load
+
max 54A!
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
14/31
Q-Series
QS40.481
48V, 20A, S INGLE P HASE I NPUT
16.
F
RONT
S
IDE AND
U
SER
E
LEMENTS
Fig. 16-1 Front side
A Input Terminals (Screw terminals)
N, L Line input
...PE (Protective Earth) input
B Output Terminals (Screw terminals, two pins per pole)
+ Positive output
– Negative (return) output
C “Parallel Use” “Single Use” Selector
Set jumper to “Parallel Use” when power supplies are connected in parallel to increase the output power. In order to achieve a sharing of the load current between the individual power supplies, the “parallel use” regulates the output voltage in such a manner that the voltage at no load is approx. 4% higher than at nominal load. See also chapter
4.6. A missing jumper is equal to a “Single Use” mode.
D Output Voltage Potentiometer
Multi turn potentiometer;
Open the flap to set the output voltage.
Factory set: 48.0V at full output current, “Single Use” mode.
E DC-OK LED (green)
On, when the voltage on the output terminals is >90% of the adjusted output voltage
F Overload LED (red)
- On, when the voltage on the output terminals is <90% of the adjusted output voltage, or in case of a short circuit in the output.
- Flashing, when the shut-down has been activated or the unit has switched off due to over-temperature.
- Input voltage is required
G DC-OK Relay Contact
The DC-OK relay contact is synchronized with the DC-OK LED.
H Shut-down and Remote Control Input
Allows the power supply to be shut down. Can be activated with a switch contact or an external voltage.
The remote control input allows adjusting the output voltage
between 44V and 54V. See chapter 9 and 10 for details.
Indicators, LEDs
Normal mode
During BonusPower ®
Overload (Hiccup mode)
Output short circuit
Temperature Shut-down
Active Shut-down input
No input power
Overload LED
OFF
OFF flashing flashing flashing flashing
OFF
DC-OK LED
ON
ON
OFF
OFF
OFF
OFF
OFF
DC-OK Contact
Closed
Closed
Open
Open
Open
Open
Open
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
15/31
Q-Series
QS40.481
48V, 20A, S INGLE P HASE I NPUT
17.
EMC
The power supply is suitable for applications in industrial environment as well as in residential, commercial and light industry environment without any restrictions. A detailed EMC report is available on request.
EMC Immunity
Electrostatic discharge
Electromagnetic RF field
Fast transients (Burst)
According generic standards: EN 61000-6-1 and EN 61000-6-2
EN 61000-4-2 contact discharge air discharge
8kV
15kV
EN 61000-4-3
EN 61000-4-4
80MHz-2.7GHz input lines output lines signal lines (coupling clamp)
20V/m
4kV
2kV
2kV
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Surge voltage on input
Surge voltage on output
EN 61000-4-5
EN 61000-4-5
Surge voltage on signal lines EN 61000-4-5
Conducted disturbance
Mains voltage dips
EN 61000-4-5
EN 61000-4-6
EN 61000-4-11
L N
L PE, N PE
+ -
+ / - PE
DC-OK signal PE
Shut-down input PE
0.15-80MHz
0% of 100Vac
40% of 100Vac
70% of 100Vac
0% of 200Vac
40% of 200Vac
70% of 200Vac
2kV
4kV
1kV
1kV
1kV
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A not relevant due to wire length
20V
0Vac, 20ms
40Vac, 200ms
70Vac, 500ms
0Vac, 20ms
80Vac, 200ms
140Vac, 500ms
Criterion A
Criterion A
Criterion C
Criterion A
Criterion A
Criterion A
Criterion A
0% of 200Vac (=0V) 5000ms Criterion C dips on the input voltage according to SEMI F47 standard
**)
Voltage interruptions
Voltage sags
EN 61000-4-11
SEMI F47
Powerful transients VDE 0160
80% of 120Vac (96Vac)
70% of 120Vac (84Vac)
50% of 120Vac (60Vac) over entire load range
1000ms
500ms
200ms
750V, 1.3ms
Criterion A
Criterion A
Criterion A
Criterion B *)
*) Criterion A is fulfilled for output current up to 15A.
**) Do not use longer wires than 30m for the shut-down input or use an additional protection.
Criterions:
A: Power supply shows normal operation behavior within the defined limits.
B: Output voltage will dip from 48V to 42V for 5ms
C: Temporary loss of function is possible. Power supply may shut-down and restarts by itself. No damage or hazards for the power supply will occur.
EMC Emission
Conducted emission input lines
Conducted emission output lines
Radiated emission
According generic standards: EN 61000-6-3 and EN 61000-6-4
EN 55011, EN 55032, FCC Part 15, CISPR 11,
CISPR 32
Class B
IEC/CISPR 16-1-2, IEC/CISPR 16-2-1
EN 55011, EN 55032
10dB higher than average limits for DC power port according EN 61000-6-3
Class B
***)
Harmonic input current EN 61000-3-2
Voltage fluctuations, flicker EN 61000-3-3 fulfilled for class A equipment fulfilled **)
This device complies with FCC Part 15 rules.
Operation is subjected to following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
**) Tested with constant current loads, non-pulsing
***) Restrictions apply for applications in residential, commercial and light-industrial environments, where local DC power networks according to EN 61000-6-3 are involved. No restrictions for all kinds of industrial applications.
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
16/31
Q-Series
QS40.481
48V, 20A, S INGLE P HASE I NPUT
Switching Frequencies
Switching frequency 1
Switching frequency 2
Switching frequency 3
Switching frequency 4
18.
E
NVIRONMENT
The power supply has four converters with four different switching frequencies included.
One is nearly constant. The others are input voltage and load dependent.
105kHz
1kHz to 150kHz
1kHz to 100kHz
25kHz to 45kHz
Resonant converter, nearly constant
Boost converter, input voltage and load dependent
PFC converter, input voltage and load dependent
Aux. converter, input voltage and load dependent
Operational temperature *) -25°C to +70°C (-13°F to 158°F)
Storage temperature -40 to +85°C (-40°F to 185°F)
Output de-rating 24W/°C
Humidity **)
Vibration sinusoidal
Shock
Altitude
5 to 95% r.H.
2-17.8Hz: ±1.6mm; 17.8-500Hz: 1g ***)
2 hours / axis
2000 to 6000m (6 560 to 20 000ft)
15g 6ms, 10g 11ms ***)
3 bumps / direction, 18 bumps in total
0 to 2000m (0 to 6 560ft)
reduce output power according Fig. 18-1
for storage and transportation
60-70°C (140°F to 158°F)
IEC 60068-2-30
IEC 60068-2-6
IEC 60068-2-27
Altitude de-rating 60W/1000m or 5°C/1000m without any restrictions reduce output power or ambient temperature,
IEC 62103, EN 50178, overvoltage category II
> 2000m (6500ft), see Fig. 18-2
Over-voltage category III
II
IEC 62103, EN 50178, altitudes up to 2000m altitudes from 2000m to 6000m
Degree of pollution 2 IEC 62103, EN 50178, not conductive
*) Operational temperature is the same as the ambient or surrounding temperature and is defined as the air temperature 2cm below the unit.
**) Do not energize while condensation is present.
***) Higher levels allowed when using the wall mounting bracket ZM2.WALL
Fig. 18-1 Output current vs. ambient temp. Fig. 18-2 Output current vs. altitude
Allowed Output Current at 48V
30A short-term (4s)
25
20
15
10 continuous
B
A... 90-264Vac
B... 85-90Vac
5
0
-25
Ambient Temperature
0 20 40
A
60 70°C
Allowed Output Current at 48V
30A
25
20 short-term (4s)
15
10
5
0
0 continuous
A... Tamb < 60°C
B... Tamb < 50°C
C... Tamb < 40°C
2000 4000
A
B
C
Altitude
6000m
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
17/31
Q-Series
QS40.481
48V, 20A, S INGLE P HASE I NPUT
19.
P
ROTECTION
F
EATURES
Output protection Electronically protected against overload, no-load and short-circuits *)
Output over-voltage protection typ. 58.8Vdc max. 60Vdc
In case of an internal power supply defect, a redundant circuit limits the maximum output voltage. The output shuts down and automatically attempts to restart.
Degree of protection IP 20 EN/IEC 60529
Caution: For use in a controlled environment according to CSA 22.2 No 107.1-01.
Penetration protection
Over-temperature protection
Input transient protection
> 5mm yes
MOV (Metal Oxide Varistor)
Internal input fuse included
*) In case of a protection event, audible noise may occur. e.g. screws, small parts
Output shut-down with automatic restart not user replaceable
20.
S
AFETY
F
EATURES
Input / output separation
Class of protection
*) SELV
PELV
IEC/EN 60950-1
IEC/EN 60204-1, EN 50178, IEC 62103, IEC 60364-4-41 double or reinforced insulation
I PE (Protective Earth) connection required input to output, 500Vdc Isolation resistance
PE resistance
> 100MOhm
< 0.1Ohm
Touch current (leakage current) typ. 0.39mA / 1.0mA typ. 0.56mA / 1.43mA
*) double or reinforced insulation typ. 0.90mA / 2.25mA max. 0.50mA / 1.21mA max. 0.71mA / 1.73mA max. 1.18mA / 2.82mA
100Vac, 50Hz, TN-,TT-mains / IT-mains
120Vac, 60Hz, TN-,TT-mains / IT-mains
230Vac, 50Hz, TN-,TT-mains / IT-mains
110Vac, 50Hz, TN-,TT-mains / IT-mains
132Vac, 60Hz, TN-,TT-mains / IT-mains
264Vac, 50Hz, TN-,TT-mains / IT-mains
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
18/31
Q-Series
QS40.481
48V, 20A, S INGLE P HASE I NPUT
21.
D
IELECTRIC
S
TRENGTH
The output voltage is floating and has no ohmic connection to the ground. Type and factory tests are conducted by the manufacturer. Field tests may be conducted in the field using the appropriate test equipment which applies the voltage with a slow ramp (2s up and 2s down). Connect all input-terminals together as well as all output poles before conducting the test. When testing, set the cut-off current settings to the value in the table below.
Fig. 21-1 Dielectric strength
Type test
A B C D
60s 2500Vac 3000Vac 500Vac 500Vac
Input DC-ok
Factory test 5s 2500Vac 2500Vac 500Vac 500Vac
L
N
B *) 13
14
Field test 5s 2000Vac 2000Vac 500Vac 500Vac
Cut-off current setting > 20mA > 20mA > 40mA > 1mA
A
Earth, PE
C
B
D
Output
+/-
Shut-down
15/16
To fulfil the PELV requirements according to EN60204-1 § 6.4.1, we recommend that either the + pole, the – pole or any other part of the output circuit shall be connected to the protective earth system. This helps to avoid situations in which a load starts unexpectedly or can not be switched off when unnoticed earth faults occur.
B*) When testing input to DC-OK ensure that the max. voltage between DC-OK and the output is not exceeded (column D). We recommend connecting DC-OK pins and the output pins together when performing the test.
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
19/31
Q-Series
QS40.481
48V, 20A, S INGLE P HASE I NPUT
22.
A
PPROVALS AND
F
ULFILLED
S
TANDARD
UL 508
IEC 60950-1
UL 60950-1
ATEX
IECEx
Class I Div 2
Marine (DNV GL)
Marine (ABS)
IEC 60068-2-60
UL Certificate
Listed equipment for category NMTR - Industrial Control
Equipment
Applicable for US and Canada
E-File: E198865
CB Scheme Certificate
General safety requirements for Information Technology
Equipment (ITE)
UL Certificate
Recognized component for category QQGQ - Information
Technology Equipment (ITE)
Applicable for US and Canada
E-File: E137006
Agency Certificate (Bureau Veritas)
EN 60079-0 Explosive atmospheres - General requirements
EN 60079-7, EN 60079-15 Equipment protection by type of protection "e" and "n"
Certificate: EPS 14 ATEX 1 638 X
Temperature Code: T3
Type of Protection: nA nC
IECEx Certificate
IEC 60079-0 Explosive atmospheres - General requirements
IEC 60079-7, IEC 60079-15 Equipment protection by type of protection "e" and "n"
Certificate: IECEx EPS 14.0007 X
Temperature Code: T3
Type of Protection: nA nC
CSA Certificate
Power Supplies for Hazardous Location
Applicable for Canada and US
CSA Class: 5318-01 (Canada), 5318-81 (USA)
Temperature Code: T3
Groups: A, B, C and D
DNV-GL Certificate
DNV-GL Type approved product
Certificate: TAA00002JT
Temperature: Class D
Humidity: Class B
Vibration: Class C
EMC: Class A
Enclosure: Class A
ABS Design Assessment Certificate
ABS (American Bureau of Shipment) assessed product
Certificate: 17-HG1599236-PDA
Manufacturer's Declaration (Online Document)
Environmental Tests, Flowing Mixed Gas Corrosion Test
Test Ke - Method 4
H2S: 10ppb
NO2: 200ppb
Cl2: 10ppb
SO2: 200ppb
Test Duration: 3 weeks, which simulates a service life of at least 10 years
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
20/31
ISA-71.04-1985
Q-Series
QS40.481
48V, 20A, S INGLE P HASE I NPUT
VDMA 24364
23.
R
EGULATORY
C
OMPLIANCE
EU Declaration of
Conformity
REACH Directive
EAC TR Registration
Manufacturer's Declaration (Online Document)
Airborne Contaminants Corrosion Test
Severity Level: G3 Harsh
H2S: 100ppb
NOx: 1250ppb
Cl2: 20ppb
SO2: 300ppb
Test Duration: 3 weeks, which simulates a service life of at least 10 years.
Paint Wetting Impairment Substances Test (or LABS-Test)
Tested for Zone 2 and test class C1 according to VDMA 24364-
C1-L/W for solvents and water-based paints
The CE mark indicates conformance with the
- EMC directive
- Low-voltage directive (LVD)
- RoHS directive
Manufacturer's Statement
EU-Directive regarding the Registration, Evaluation, Authorisation and Restriction of Chemicals
Registration for the Eurasian Customs Union market
(Russia, Kazakhstan, Belarus)
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
21/31
Q-Series
QS40.481
48V, 20A, S INGLE P HASE I NPUT
24.
P
HYSICAL
D
IMENSIONS AND
W
EIGHT
Width
Height
Depth
Weight
DIN-Rail
Housing material
Installation clearances
125mm 4.92’’
124mm 4.88’’
127mm 5.0’’
The DIN-rail height must be added to the unit depth to calculate the total required installation depth.
1900g / 4.2lb
Use 35mm DIN-rails according to EN 60715 or EN 50022 with a height of 7.5 or 15mm.
Aluminium body, steel cover
Fig. 2-1 Front view Fig. 2-2 Side view
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
22/31
Q-Series
25.
A
CCESSORIES
QS40.481
48V, 20A, S INGLE P HASE I NPUT
25.1.
ZM2.WALL
W
ALL MOUNTING BRACKET
This bracket is used to mount specific DIMENSION units onto a flat surface without utilizing a DIN-Rail.
25.2.
UF20.481
B
UFFER MODULE
This buffer unit is a supplementary device for DC 48V power supplies. It delivers power to bridge typical mains failures or extends the hold-up time after turn-off of the AC power.
In times when the power supply provides sufficient voltages, the buffer unit stores energy in integrated electrolytic capacitors. In case of mains voltage fault, this energy is released again in a regulated process.
AC
DC
Power
Supply
Buffer
Unit(s)
Load
+
-
The buffer unit does not require any control wiring. It can be added in parallel to the load circuit at any given point. Buffer units can be added in parallel to increase the output ampacity or the hold-up time.
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
23/31
Q-Series
QS40.481
48V, 20A, S INGLE P HASE I NPUT
25.3.
YR40.482
R
EDUNDANCY
M
ODULE
The YR40.482 is equipped with two input channels (20A each), which are individually decoupled by utilizing mosfet technology. The output current can go as high as 40A.
Using mosfets instead of diodes reduces the heat generation and the voltage drop between input and output.
The YR40.482 does not require an additional auxiliary voltage and is self-powered even in case of a short circuit across the output.
Due to the low power losses, the unit is very slender and only requires 46mm width on the
DIN-rail.
Fig. 3-1 Typical 1+1 Redundant configuration for 20A with a dual redundancy module
48V
20A
Load
Failure
Monitor
QS40.481
48-54V 960W
Power Supply
Parallel Use
Single Use
DC-
OK
AC Input
L N PE
- -
+ -
Output
YR40.482
Redundancy
Module
QS40.481
48-54V 960W
Power Supply
Parallel Use
Single Use
DC-
OK
Input
1
+ -
Input
2
+ -
AC Input
L N PE
- -
L
N
PE
I I
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
24/31
Q-Series
26.
A
PPLICATION
N
OTES
QS40.481
48V, 20A, S INGLE P HASE I NPUT
26.1.
R
EPETITIVE
P
ULSE
L
OADING
Typically, a load current is not constant and varies over time. This power supply is designed to support loads with a higher short-term power demand (=BonusPower ® ). The short-term duration is hardware controlled by an output power manager and is available on a repeated basis. If the BonusPower controller allows it, the output voltage will dip and the next BonusPower
time (see chapter 6) has elapsed.
® load lasts longer than the hardware
® is available after the BonusPower ® recovery
To avoid this, the following rules must be met: a) The power demand of the pulse must be below 150% of the nominal output power. b) The duration of the pulse power must be shorter than the allowed BonusPower ® time. (see output section) c) The average (R.M.S.) output current must be below the specified continuous output current.
If the R.M.S. current is higher, the unit will respond with a thermal shut-down after a period of time. Use the
d) The duty cycle must be below 0.75.
Fig. 4-1 Repetitive pulse loads, definitions Fig. 4-2 Max. duty cycle curve
P
PEAK
T
PEAK
T
0
Duty Cycle
0.75
0.6
P
P
0
0
P
0
= 10%
= 50%
= 75% max.
150%
100%
0.4
P
0
0.2
P
0
= 100%
0
100
P
PEAK
110 120 130 140 150%
P
0
P
PEAK
Base load (W)
Pulse load (above 100%)
T
0
T
PEAK
Duration between pulses (s)
Pulse duration (s)
T
0
=
T peak
D uty C ycle =
T peak + T 0
T peak
(D uty C ycle x T peak )
D uty
C ycle
Example: A load is powered continuously with 480W (= 50% of the rated output load). From time to time a peak power of 1440W (= 150% of the rated output load) is needed for 1 second.
The question is: How often can this pulse be supplied without overloading the power supply?
- Make a vertical line at P
PEAK
= 150% and a horizontal line where the vertical line crosses the P
0
= 50% curve. Read the max. duty cycle from the duty cycle-axis (= 0.37)
Calculate the required pause (base load) length T
0
:
Result: The required pause length = 1.7s
Max. repetition rate = pulse +pause length = 2.7s
T
0
=
T peak
(D uty
C ycle
x T peak
)
D uty
C ycle
=
1s (0.37 x 1s)
0.37
= 1.7s
More examples for pulse load compatibility:
P
PEAK
P
0
T
PEAK
T
0
1440W 960W 1s
1440W 0W 1s
1200W 480W 1s
>25s
>1.3s
> 0.75s
P
PEAK
P
0
T
PEAK
T
0
1440W 480W 0.1s
1440W 480W 1s
1440W 480W 3s
>0.16s
>1.6s
>4.9s
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
25/31
Q-Series
QS40.481
48V, 20A, S INGLE P HASE I NPUT
26.2.
P
EAK
C
URRENT
C
APABILITY
The power supply can deliver peak currents (up to several milliseconds) which are higher than the specified short term currents.
This helps to start current demanding loads. Solenoids, contactors and pneumatic modules often have a steady state coil and a pick-up coil. The inrush current demand of the pick-up coil is several times higher than the steady-state current and usually exceeds the nominal output current (including the BonusPower ® ). The same situation applies when starting a capacitive load.
The peak current capability also ensures the safe operation of subsequent circuit breakers of load circuits. The load branches are often individually protected with circuit breakers or fuses. In case of a short or an overload in one branch circuit, the fuse or circuit breaker need a certain amount of over-current to open in a timely manner. This avoids voltage loss in adjacent circuits.
The extra current (peak current) is supplied by the power converter and the built-in large sized output capacitors of the power supply. The capacitors get discharged during such an event, which causes a voltage dip on the output. The following two examples show typical voltage dips:
Fig. 4-3 Peak load with 2x the nominal current for 50ms, typ.
Fig. 4-4 Peak load with 5x the nominal current for 5ms, typ.
40A Peak load (resistive) for 50ms
Output voltage dips from 48V to 37.9V.
100A Peak load (resistive) for 5ms
Output voltage dips from 48V to 28.9V.
Please note: The DC-OK relay triggers when the voltage dips more than 10% for longer than 1ms.
Peak current voltage dips typ. typ. typ. from 48V to 37.9V at 40A for 50ms, resistive load from 48V to 34.9V at 100A for 2ms, resistive load from 48V to 28.9V at 100A for 5ms, resistive load
26.3.
E
XTERNAL
I
NPUT
P
ROTECTION
The unit is tested and approved for branch circuits up to 30A (U.S.A.) and 32A (IEC). An external protection is only required if the supplying branch has an ampacity greater than this. Check also local codes and local requirements. In some countries local regulations might apply.
If an external fuse is necessary or utilized, minimum requirements need to be considered to avoid nuisance tripping of the circuit breaker. A minimum value of 16A B- or C-Characteristic breaker should be chosen, when the unit is used at
AC100 and AC120V mains voltages (including AC 230V). If the unit is used only at AC 230V mains, a 10A B- or C-
Characteristic breaker is sufficient.
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
26/31
Q-Series
QS40.481
48V, 20A, S INGLE P HASE I NPUT
26.4.
C
HARGING OF
B
ATTERIES
This power supply is not recommended to charge lead-acid or maintenance free batteries. The recommended end-ofcharge voltage of 55.0V (at 20°C) for four 12V VRLA lead-acid batteries in series can not be supplied from the QS40.481 unit.
26.5.
O
UTPUT
C
IRCUIT
B
REAKERS
Standard miniature circuit breakers (MCB’s or UL1077 circuit breakers) are commonly used for AC-supply systems and may also be used on DC branches.
MCB’s are designed to protect wires and circuits. If the ampere value and the characteristics of the MCB are adapted to the wire size that is used, the wiring is considered as thermally safe regardless of whether the MCB opens or not.
To avoid voltage dips and under-voltage situations in adjacent 48V branches which are supplied by the same source, a fast (magnetic) tripping of the MCB is desired. A quick shutdown within 10ms is necessary corresponding roughly to the ride-through time of PLC's. This requires power supplies with high current reserves and large output capacitors.
Furthermore, the impedance of the faulty branch must be sufficiently small in order for the current to actually flow.
The best current reserve in the power supply does not help if Ohm’s law does not permit current flow. The following table has typical test results showing which B- and C-Characteristic MCBs magnetically trip depending on the wire cross section and wire length.
Power Supply
AC
+
Fig. 4-5 Test circuit
MCB
+
-
Load
Maximal wire length *) for a fast (magnetic) tripping:
0.75mm² 1.0mm² 1.5mm² 2.5mm²
C-2A
C-3A
68m
53m
89m
75m
>100m
>100m
>100m
>100m
C-4A
C-6A
C-8A
C-10A
44m
18m
9m
8m
57m
25m
12m
11m
88m
38m
18m
16m
>100m
58m
24m
23m
DC
-
Wire length
S1... Fault simulation switch
S1
C-13A
B-6A
B-10A
B-13A
4m
39m
21m
13m
5m
50m
29m
21m
8m
74m
44m
34m
12m
>100m
68m
52m
B-16A 7m 9m 13m 17m
B-20A 2m 3m 4m
*) Don’t forget to consider twice the distance to the load (or cable length) when calculating the total wire length (+ and – wire).
5m
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
27/31
Q-Series
QS40.481
48V, 20A, S INGLE P HASE I NPUT
26.6.
P
ARALLEL
U
SE TO
I
NCREASE
O
UTPUT
P
OWER
Power supplies from the same series (Q-Series) can be paralleled to increase the output power. The output voltage shall be adjusted to the same value
(±100mV) in “Single use” mode with the same load conditions on all units, or the units can be left with the factory settings. After the adjustments, the jumper on the front of the unit shall be moved from “Single use” to “Parallel use”, in order to achieve load sharing. The “Parallel use” mode regulates the output voltage in such a manner that the voltage at no load is approx. 4%
higher than at nominal load. See also chapter 6. If no jumper is plugged in, the
unit is in “Single use” mode. Factory setting is also “Single use” mode.
Unit A
AC
DC
Unit B
AC
DC
+
-
+
-
+
-
Load
If more than three units are connected in parallel, a fuse or circuit breaker with a rating of 30A or 32A is required on each output. Alternatively, a diode or redundancy module can also be utilized.
Energize all units at the same time to avoid the overload Hiccup power (turn-off for at least five seconds), if the output was in Hiccup required output current is higher than the current of one unit.
PLUS mode. It also might be necessary to cycle the input
PLUS mode due to overload or short circuits and the
Keep an installation clearance of 15mm (left / right) between two power supplies and avoid installing the power supplies on top of each other. Do not use power supplies in parallel in mounting orientations other than the standard mounting orientation (terminals on the bottom of the unit) or in any other condition where a derating of the output current is required (e.g. altitude, above 60°C, …).
Pay attention that leakage current, EMI, inrush current, harmonics will increase when using multiple power supplies.
26.7.
P
ARALLEL
U
SE FOR
R
EDUNDANCY
Power supplies can be paralleled for redundancy to gain higher system availability. Redundant systems require a certain amount of extra power to support the load in case one power supply unit fails. The simplest way is to put two power supplies in parallel. This is called a 1+1 redundancy. In case one power supply unit fails, the other one is automatically able to support the load current without any interruption. Redundant systems for a higher power demand are usually built in a N+1 method. E.g. five power supplies, each rated for 20A are paralleled to build a 80A redundant system. For N+1 redundancy the same restrictions apply as for increasing the output power, see also
Please note: This simple way to build a redundant system does not cover failures such as an internal short circuit in the secondary side of the power supply. In such a case, the defective unit becomes a load for the other power supplies and the output voltage can not be maintained any more. This can be avoided by utilizing redundancy modules, which have decoupling devices (diodes or mosfets) included. Further information and wiring configurations can be found in
Recommendations for building redundant power systems: a) Use separate input fuses for each power supply. A separate source for each supply when possible increases the reliability of the redundant system. b) Set the power supply into “Parallel Use” mode. c) Monitor the individual power supply units. Therefore, use the DC-OK relay contact of the QS40 power supply. d) It is desirable to set the output voltages of all units to the same value (± 100mV) or leave it at the factory setting.
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
28/31
Q-Series
QS40.481
48V, 20A, S INGLE P HASE I NPUT
26.8.
S
ERIES
O
PERATION
Power supplies of the same type can be connected in series for higher output voltages. It is possible to connect as many units in series as needed, providing the sum of the output voltage does not exceed 150Vdc. Voltages with a potential above 60Vdc are not SELV any more and can be dangerous.
Such voltages must be installed with a protection against touching.
Earthing of the output is required when the sum of the output voltage is above 60Vdc.
Avoid return voltage (e.g. from a decelerating motor or battery) which is applied to the output terminals.
Unit A
AC
DC
Unit B
AC
DC
+
-
+
-
+
-
Load
Earth
(see notes)
Keep an installation clearance of 15mm (left / right) between two power supplies and avoid installing the power supplies on top of each other. Do not use power supplies in series in mounting orientations other than the standard mounting orientation (terminals on the bottom of the unit).
Pay attention that leakage current, EMI, inrush current, harmonics will increase when using multiple power supplies.
26.9.
I
NDUCTIVE AND
C
APACITIVE
L
OADS
The unit is designed to supply any kind of loads, including capacitive and inductive loads. If extreme large capacitors, such as EDLCs (electric double layer capacitors or “UltraCaps”) with a capacitance > 1F are connected to the output, the unit might charge the capacitor in the Hiccup PLUS
26.10.
B
ACK
-
FEEDING
L
OADS
Loads such as decelerating motors and inductors can feed voltage back to the power supply. This feature is also called return voltage immunity or resistance against Back- E.M.F. (Electro Magnetic Force).
This power supply is resistant and does not show malfunctioning when a load feeds back voltage to the power supply.
It does not matter whether the power supply is on or off.
The maximum allowed feed-back-voltage is 63Vdc. The absorbing energy can be calculated according to the built-in
large sized output capacitor which is specified in chapter 6.
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
29/31
Q-Series
26.11.
O
PERATION ON
T
WO
P
HASES
The power supply can also be used on two-phases of a three-phase-system.
Such a phase to phase connection is allowed as long as the supplying voltage is below 240V +10% .
L3
L1
L2
QS40.481
48V, 20A, S INGLE P HASE I NPUT
Power Supply
L
AC internal fuse
N
PE
DC
26.12.
U
SE IN A
T
IGHTLY
S
EALED
E
NCLOSURE
When the power supply is installed in a tightly sealed enclosure, the temperature inside the enclosure will be higher than outside. In such situations, the inside temperature defines the ambient temperature for the power supply.
The following measurement results can be used as a reference to estimate the temperature rise inside the enclosure.
The power supply is placed in the middle of the box, no other heat producing items are inside the box
Enclosure:
Load:
Rittal Typ IP66 Box PK 9522 100, plastic, 254x180x165mm
48V, 16A; (=80%) load is placed outside the box
Input: 230Vac
Temperature inside enclosure: 65.6°C (in the middle of the right side of the power supply with a distance of 2cm)
Temperature outside enclosure: 24.1°C
Temperature rise: 41.5K
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
30/31
Q-Series
QS40.481
48V, 20A, S INGLE P HASE I NPUT
26.13.
M
OUNTING
O
RIENTATIONS
Mounting orientations other than all terminals on the bottom require a reduction in continuous output power or a limitation in the maximum allowed ambient temperature. The amount of reduction influences the lifetime expectancy of the power supply. Therefore, two different derating curves for continuous operation can be found below:
Curve A1
Curve A2
Fig. 4-6
Mounting
Orientation A
(Standard orientation)
Recommended output current.
Max allowed output current (results in approximately half the lifetime expectancy of A1).
Power
Supply
Output Current
20A
15
10
A1
5
Ambient Temperature
INPUT OUTPUT 0
10 20 30 40 50 60°C
Fig. 4-7
Mounting
Orientation B
(Upside down)
PUT y
OUT er
UT
Pow
Suppl
INP
Output Current
20A
15
10
A2
A1
5
Ambient Temperature
0
10 20 30 40 50 60°C
Fig. 4-8
Mounting
Orientation C
(Table-top mounting)
Output Current
20A
15
10
5
0
10 20
A2
A1
Ambient Temperature
30 40 50 60°C
Fig. 4-9
Mounting
Orientation D
(Horizontal cw)
Output Current
20A
15
A2
A1
10
5
0
10 20
Ambient Temperature
30 40 50 60°C
Fig. 4-10
Mounting
Orientation E
(Horizontal ccw)
Output Current
20A
15
10 A2
A1
5
0
10 20
Ambient Temperature
30 40 50 60°C
Dez. 2020 / Rev. 1.3 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany
31/31
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