Gossen Metrawatt SLP 120-20, SLP 120-40, SLP 120-80, 32 N 20 R 10, 32 N 40 R 6 User guide

Operating Instructions

13025

11/5.15

SLP-KONSTANTER 32N

Series SLP 120 /SLP 240 / SLP 320
Analog Controlled Laboratory Power Supplies

2 GMC-I Messtechnik GmbH

Contents

Page

Receiving Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Warnings and Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Important Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

1 Technical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

1.1 Range of Applications and Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

1.2 Functional Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

1.3 Options and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

1.4 Technical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.4.1 General Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

1.4.2 Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

1.4.3 Mechanical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

2 Preparation for Operation and Initial Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

2.1 Connection to the Mains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.2 Connection to the Consuming Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

2.3 Sensing Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

2.4 Installation to a 19" Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

2.5 Multiple Benchtop Device Combination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

3 Controls, Displays and Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4 Adjusting Output Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

4.1 Output Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

4.1.1 Uout – Presently Measured Voltage Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

4.1.2 Ulim – Limit Value for Uset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

4.1.3 Uset – Voltage Setpoint Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

4.2 Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.2.1 Iout – Presently Measured Current Value. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

4.2.2 Ilim – Limit Value for Iset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

4.2.3 Iset – Current Setpoint Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.3 OUTPUT – Switching the Power Output On and Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

5 Control via the Analog Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.1 Connector Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

5.2 Status Signal Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

5.3 Trigger Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

5.4 Controlling Output Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.5 Controlling Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.6 Voltage Monitoring Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

5.7 Current Monitoring Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.8 Parallel Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

5.8.1 Direct Parallel Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

5.8.2 Parallel Master-Slave Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.9 Series Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

5.9.1 Direct Series Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

5.9.2 Series Master-Slave Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.10 Varying Internal Output Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

6 Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

7 Order Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

8 Repair and Replacement Parts Service

Calibration Center and Rental Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

9 Product Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

GMC-I Messtechnik GmbH 3

Receiving Inspection

Important Warnings

Immediately upon receipt, unpack the KONSTANTER and all included
accessories, and inspect for completeness and possible damage.

Unpacking

☞ Other than the usual degree of care required for the handling of

electronic devices, no special care must be exercised when
unpacking the instrument.

☞ The KONSTANTER is shipped in recyclable packaging which

provides for adequate protection during transport. If the
instrument needs to be repacked, the original packaging, or
equivalent packaging, must be used.

Visual Inspection

☞ Compare the order number or type designation found on the

packaging and/or the serial plate with the specifications
printed in the shipping documents.

☞ Make sure that all accessory components have been included

(→ 1.3 Options and Accessories).

☞ Inspect the packaging as well as instrument mechanisms for

possible transport damage.

Complaints

If damage is detected, file a damages report immediately with the
freight forwarder (save the packaging!). In the event of any other
defects or if service is required, please contact your service repre­sentative, or contact us directly at the address included in the last
page of these instructions.

Warnings and Safety Precautions

The KONSTANTER has been manufactured and tested in accor-
dance with the safety regulations specified in the technical data
section included in this chapter as a safety class I device. It has left
the factory in flawless technical safety conditions. In order to main­tain this condition, and to assure safe use, the user must observe
all notes and warnings included in these operating instructions.
These are identified with the following headings:

CAUTION!

Operating instructions or practical information etc., which must be
observed in order to prevent damage to the KONSTANTER, and to assure
correct operation.

WARNING I – Protective Ground

The

KONSTANTER may only be operated with a connected protec-

tive conductor. Any interruption of the protective conductor, either
inside or outside of the KONSTANTER or disconnection of the pro-
tective conductor terminal, may render the KONSTANTER hazardous.
Intentional interruption is prohibited.
Mains connection is accomplished with a 3-conductor cable with
mains plug. The plug may only be inserted into a suitable mains
outlet with an earthing contact. The resulting protection must not
be rendered ineffective through the use of an extension cable
without protective conductor.

WARNING II – Impaired Safety Protection

If it may be assumed that safe operation is no longer possible, the

KONSTANTER must be removed from service and secured against

unintentional use. It must be assumed that safe operation is no
longer possible if:

KONSTANTER demonstrates visible damage

• The

KONSTANTER no longer functions

• The

• After lengthy periods of storage if specified storage conditions

have not been observed

• After excessive stress due to transport

WARNING III – Opening Housing Covers

Voltage conducting part may be exposed when housing covers
are opened, as long as the KONSTANTER is connected.
Touching these exposed voltage conducting parts is extremely life
endangering.
Housing covers may thus only be opened or removed by qualified
personnel who are familiar with the dangers involved.

WARNING IV – Repairs Performed by Qualified Personnel Only

Voltage conducting part may be exposed when housing covers
are opened, as long as the
Maintenance and repairs, as well as internal instrument balancing,
may only be performed by qualified personnel who are familiar with
the dangers involved.
In as far as possible, the KONSTANTER must be disconnected from
all external voltage sources before such work is performed. A 5
minute waiting period must be observed after disconnection, in
order to allow internal capacitors to discharge to safe voltage
levels.

KONSTANTER is connected.

WARNING!

Operating instructions or practical information etc., which must be
observed in order to maintain the safety features included with the
KONSTANTER, and to prevent personal injury.
The most important warnings are summarized below. Reference is made
to these warning at all appropriate points throughout the operating
instructions.

4 GMC-I Messtechnik GmbH

WARNING V – Replacing Fuses

When replacing blown fuses, use only specified fuse types with the
specified current ratings (see technical data or serial plate).
Tampering with the fuses or fuse holders (“mending” fuses, short­circuiting fuse holders etc.) is prohibited.

1 Technical Description

1.2 Functional Characteristics

1.1 Range of Applications and Features

The SLP-KONSTANTER is a single channel laboratory power supply
for universal use in R&D, production, training and service.

The KONSTANTER maintains either constant current or constant voltage
and is capable of delivering 120 W or 240 W of nominal power
over a broad range thanks to the auto-ranging output.

Precise manual settings for voltage and current are accomplished
with the help of ten-turn potentiometers. The setting range can be
reduced with a screwdriver, in order to prevent inadvertent
adjustment to unwanted, excessively high values.

Output voltage and current appear at two large-format 3½ place

digital LED displays, which can also be switched for the display of
setpoint values. Control mode displays indicate the respective

operating status.

The floating output at the front and rear panels can be activated and
deactivated by pressing a key, or with a signal to the analog inter­face which is provided as standard equipment. The instrument is
automatically switched to remote sensing as soon as sensor cables
are connected.

The sturdy metal housing is sealed at top and bottom, and is
equipped with rubber feet and a cable spacer at the rear panel.

With a minimum of effort, several housings can be mechanically
combined into a multi-channel unit. This unit requires only one
mains outlet which is looped through with the help of a mains
jumper cable (accessory) via the integrated mains outlet socket.
Installation to a 19" rack is also possible with the appropriate
adapter.

Adjustable functions

❏ Voltage and current setpoints
❏ Limit values for voltage and current setting ranges
❏ Output activation and deactivation

Display functions

❏ Measured voltage and current values
❏ Voltage and current setpoints
❏ Current control mode (CC/CV)

Protective and additional functions

❏ Reverse polarity protection for sensor terminals

with automatic activation (auto-sensing)

❏ Protection against excessive temperature
❏ Protection against output polarity reversal
❏ In-rush current limiting
❏ Temperature controlled fan
❏ Master-slave link

1.3 Options and Accessories

Options

No options are available for the KONSTANTER, above and beyond
the included standard equipment.

Included Accessories:
The following accessories are included with the KONSTANTER:

❏ These operating instructions
❏ 1 power cable (approx. 1.5 m long) with earthing contact plug

Additionally available accessories:

(see last page for order information)

❏ 19" adapter (1x32N) for installing 1 series SLP KONSTANTER to

a 19" rack

❏ 19" adapter (2x32N) for installing 2 series SLP KONSTANTERs to

a 19" rack

❏ Mains jumper cable, 0.4 m long

used for looping through mains power, equipped with a 10 A
plug and a 10 A socket for non-heating apparatus

GMC-I Messtechnik GmbH 5

1.4 Technical Data

U/V

U

Nom

I/A

I

Nom

0

0.5 I

Nom

P

Nom

Intermittent
Working Range

Voltage Adj.

Current Adj.

Range

Range

0.5

U

Nom

1.4.1 General Data

Power Supply

Connection Input: 10 A IEC plug

Output: 10 A IEC socket,

Line Voltage 230 V~, +10 / –15%, 47 … 63 Hz
Power Consumption see 1.4.2

In-Rush Current max. 50 A
Mains Fuse 1 x T 4 A / 250 V (6.3 x 32 mm, UL)

internal: 1 x T 5 H / 250 V (5 x 20 mm)

Output

Connection

Output front panel, 2 ea. 4 mm safety socket

rear panel, 6-pole plug-in screw terminal
block

no switch, no fuse

S

10 U-MON Output voltage measurement output

(0 ... 10 V corres. to 0 ... U

, Ri = 9.8 kΩ)

nom

11 I-MON Output current measurement output

(0 ... 10 V corres. to 0 ... I

, Ri = 9.4 kΩ)

nom

Electrical Safety

Safety class I
Overvoltage

category II for mains input

I for output and interfaces
Fouling factor 2
Earth leakage

current 2.5 mA, typ.

IEC 61010-1:1990 + A1:1992 / DIN EN 61010-1: 1993 /
VDE 0411-1:1994

Sensor rear panel, 6-pole plug-in screw terminal

block

Regulator Type primary switched mode with BET

DIN VDE 0160:1988 + A1:1989 class W1

EN 60950:1992 / VDE 0805:1990

technology

Operating Modes adjustable constant voltage / constant cur-

rent source with automatic sharp transition

Output Isolation Floating output with “safety isolation” from

the mains input,
max. allowed potential output

-

earth:

120 V,

capacitive output-earth (housing): 60 nF

Output Working Range

Protection IP 20 for housing per

IEC 529:1989,

EN 60529:1991,

VDE 0470-1:1992
Electrical isolation Test voltage
Mains/output–PE 1.35 kV~
Mains–output 2.7 kV~ (type test: 3.7 kV ~)

Electromagnetic Compatibility (EMC)

Product standard EN 61326-1:1997 + A1: 1998
Interference

emission EN 55022:1998 class A
Interference

immunity EN 61000-4-2:1995, feature A

EN 61000-4-3:1996 + A1:1998,

feature B
EN 61000-4-4:1995, feature B
EN 61000-4-5:1995, feature B
EN 61000-4-6:1996, feature B

Intermittent Working Range:
Overtemperature protection may be
triggered, and the output deactivated, if
operated for lengthy periods of time in the
intermittent working range (see also
intermittent power, 1.4.2).

Analog Interface

Connection 11-pole plug-in screw terminal block
Reference Potential negative output pole,

floating TRG input

Connector Pin Assignments:

Pin Designation Function

1 SIG1 OUT Status signal output for output ON/OFF

(open collector, max. 30 V − / 20 mA)

2 SIG2 OUT Control mode status signal output CV / CC

Ambient Conditions

IEC 68-2-6 (’90) Resistance to Vibration

IEC 68-2-27 (’89) Impact Resistance

Temperature Range Operation: 0 ... 50 °C

Atmospheric Humidity Operation: ≤ 75% relative humidity,

Cooling With integrated fan

EN 61000-4-11:1994, feature B

(10 ... 55 Hz, 0.3 mm, 1 octave / min,
3 x 30 min)

(15 g, 11 ms, half-sine, 3 x 6 shocks)

current derating at > 40 °C
(see also 1.4.2.)

Storage: –25 ... +75 °C

no condensation

Air inlet: at side panels
Air outlet: at rear panel

(open collector, max. 30 V − / 20 mA)

3TRG IN + Digital control input for output ON/OFF
4TRG IN − (low: < 1 V, high: 4 ... 26 V), floating

5 +15 V Auxiliary voltage +15 V / max. 50 mA
6 AGND Reference point connected to − output via

automatic resetting fuse

7U

8U

9I

6 GMC-I Messtechnik GmbH

− Analog, negated voltage control input

set

+ Analog voltage control input

set

+ Analog current control input

set

(0 ... −5 V corres. to 0 ... U

(0 ... +5 V corres. to 0 ... U

(0 ... +5 V corres. to 0 ... I

non

nom

nom

, Ri = 10 kΩ)

, Ri = 10 kΩ)

, Ri = 10 kΩ)

1.4.2 Electrical Data

Electrical Data, Series 120 W

If not otherwise specified, all entries are maximum values and are valid for an operating temperature range of 0 to 50 °C,
nominal power range and a line voltage range of 230 V ± 10% after a warm-up period of 30 minutes.

Description (abbreviated designation) SLP 120-20 SLP 120-40 SLP 120-80

Typ e 32 N 20 R 10 32 N 40 R 6 32 N 80 R 3

Nominal Output Data Voltage setting range 0 ... 20 V 0 ... 40 V 0 ... 80 V

Current setting range 0 ... 10 A 0 ... 6 A 0 ... 3 A

Continuous power where Tu ≤ 40 °C max. 120 W max. 120 W max. 120 W

Intermittent power where t < 90 s / Tu ≤ 25 °C max. 200 W max. 240 W max. 240 W

Current derating where Tu > 40 °C – 0.25 A / K – 0.15 A / K – 0.07 A / K

Output Operating Characteristics

Overall setting accuracy at 23 ± 5 °C
with reference to 3½ place setpoint display
including system deviation, load / mains

Static system deviation
at 100% load variation

Static system deviation
at 10% line voltage variation

Residual ripple
Ua > 5% U

nom

1)

1)

1)

1)

1)

Voltage (10 Hz ... 10 MHz)

Current (10 Hz ... 1 MHz)

Common-mode noise (10 Hz ... 1 MHz) 0.5 mA

Settling time (voltage)
with sudden load variation of 10 ... 90% I

nom

Under and overshooting with sudden load variation of

(Typical values) Δ I = 80%
(Typical values) Δ I = 80% 400 mV 400 mV 800 mV

50 A / ms

Settling time (voltage)
with setpoint jump: 0 → 100%
with setpoint jump: 100% → 0

no load / nominal load
no load / nominal load

Settling time (current)
with setpoint jump: 0 → 100%
with setpoint jump: 100% → 0

short-circuit / nominal load
short-circuit / nominal load

Measured Value Displays (3½ place)

Measurement resolution Voltage

Measuring accuracy at 23 ± 5 °C
with reference to the respective measured value

Protective Functions

Output overvoltage protection Threshold 25 ± 1 V 50 ± 2 V 100 ± 4 V

Reversed polarity protection – overload capacity Continuous 10 A 6 A 3 A

Reverse flow resistance Continuous 40 V 80 V 100 V

General

Power supply

1)

Power Consumption At nominal load

At max. intermittent power

Efficiency At nominal load > 70% > 80% > 80%

Switching frequency Typical 200 kHz 200 kHz 200 kHz

Article number K220A K221A K222A

1) Typical values are increased by a factor of approximately 1.2 in the functional line voltage input range of –10% to –15%.

Voltage
Current

Voltage
Current

Voltage
Current

0.2% + 50 mV

0.5% + 45 mA

15 mV
20 mA

5 mV
8 mA

10 mV
25 mA

To le ra nc e

40 mV

200 μs

To le ra nc e

40 mV
1 ms / 1 ms
1 ms / 1 ms

To le ra nc e

100 mA
< 5 ms / < 5 ms
< 5 ms / < 5 ms

10 mV

Current

Voltage
Current

10 mA

0.15% + 25 mV

0.5% + 30 mA

Line voltage 230 V~ +10 / −15%

47 ... 63 Hz

280 VA, 180 W

In standby mode

45 VA, 15 W

450 VA

0.2% + 150 mV

0.5% + 35 mA

10 mV
10 mA

5 mV
5 mA

eff
eff

eff

10 mV
20 mA

0.5 mA

eff
eff

eff

80 mV

200 μs

80 mV
1 ms / 1 ms
1 ms / 1 ms

60 mA

< 5 ms / < 5 ms
< 5 ms / < 5 ms

100 mV

10 mA

0.2% + 120 mV

0.5% + 25 mA

230 V~ +10 / −15%

47 ... 63 Hz

280 VA, 150 W

45 VA, 15 W

500 VA

0.2% + 250 mV

0.5% + 20 mA

10 mV
10 mA

5 mV
5 mA

10 mV
10 mA

0.5 mA

80 mV

200 μs

160 mV
4 ms / 4ms
4 ms / 4ms

30 mA
< 10 ms / < 10 ms
< 10 ms / < 10 ms

100 mV

10 mA

0.2% + 150 mV

0.5% + 20 mA

230 V~ +10 / −15%

47 ... 63 Hz

280 VA, 170 W

45 VA, 15 W

500 VA

eff
eff

eff

GMC-I Messtechnik GmbH 7

Electrical Data, Series 240 W

If not otherwise specified, all entries are maximum values and are valid for an operating temperature range of 0 to 50 °C,
nominal power range and a line voltage range of 230 V ± 10% after a warm-up period of 30 minutes.

Description (abbreviated designation) SLP 240-20 SLP 240-40 SLP 240-80

Typ e 32 N 20 R 20 32 N 40 R 12 32 N 80 R 6

Nominal Output Data Voltage setting range 0 ... 20 V 0 ... 40 V 0 ... 80 V

Current setting range 0 ... 20 A 0 ... 12 A 0 ... 6 A

Continuous power where Tu ≤ 40 °C max. 240 W max. 240 W max. 240 W

Intermittent power where t < 90 s / Tu ≤ 25 °C max. 320 W max. 360 W max. 360 W

Current derating where Tu > 40 °C – 0.5 A / K – 0.3 A / K – 0.15 A / K

Output Operating Characteristics

Overall setting accuracy at 23 ± 5 °C
with reference to 3½ place setpoint display
including system deviation, load / mains

Static system deviation
at 100% load variation

Static system deviation
at 10% line voltage variation

Residual ripple
Ua > 5% U

nom

1)

1)

1)

1)

1)

Voltage (10 Hz ... 10 MHz)

Current (10 Hz ... 1 MHz)

Common-mode noise (10 Hz ... 1 MHz) 0.5 mA

Settling time (voltage)
with sudden load variation of 10 ... 90% I

nom

Under and overshooting with sudden load variation of

(Typical values) Δ I = 80%
(Typical values) Δ I = 80% 450 mV 450 mV 800 mV

50 A / ms

Settling time (voltage)
with setpoint jump: 0 → 100%
with setpoint jump: 100% → 0

no load / nominal load
no load / nominal load

Settling time (current)
with setpoint jump: 0 → 100%
with setpoint jump: 100% → 0

short-circuit / nominal load
short-circuit / nominal load

Measured Value Displays (3½ place)

Measurement resolution Voltage

Measuring accuracy at 23 ± 5 °C
with reference to the respective measured value

Protective Functions

Output overvoltage protection Threshold 25 ± 1 V 50 ± 2 V

Reversed polarity protection – overload capacity Continuous 20 A 12 A 6 A

Reverse flow resistance Continuous 40 V 80 V 100 V

General

Power supply

1)

Power Consumption At nominal load

At max. intermittent power

Efficiency At nominal load > 68% > 70% > 70%

Switching frequency Typical 200 kHz 200 kHz 200 kHz

Article number K230A K231A K232A

1) Typical values are increased by a factor of approximately 1.2 in the functional line voltage input range of –10% to –15%.

Voltage
Current

Voltage
Current

Voltage
Current

0.2% + 100 mV

0.5% + 55 mA

25 mV
30 mA

5 mV
8 mA

15 mV
50 mA

To le ra n ce

40 mV
600 μs

To le ra n ce

40 mV
1 ms / 1 ms
1 ms / 1 ms

To le ra n ce

200 mA
< 5 ms / < 5 ms
< 5 ms / < 5 ms

10 mV

Current

Voltage
Current

10 mA

0.2% + 50 mV

0.5% + 25 mA

Line voltage 230 V~ +10 / −15%

47 ... 63 Hz

510 VA, 350 W

In standby mode

45 VA, 15 W

620 VA

0.2% + 150 mV

0.5% + 45 mA

18 mV
30 mA

5 mV
8 mA

eff
eff

eff

15 mV
25 mA

0.5 mA

eff
eff

eff

80 mV
300 μs

80 mV
1 ms / 1 ms
1 ms / 1 ms

120 mA
< 5 ms / < 5 ms
< 5 ms / < 5 ms

100 mV

10 mA

0.2% + 120 mV

0.5% + 30 mA

0.2% + 250 mV

0.5% + 35 mA

18 mV
15 mA

5 mV
5 mA

15 mV
20 mA

0.5 mA

160 mV

200 μs

160 mV
4 ms / 4ms
4 ms / 4ms

60 mA
< 10 ms / < 10 ms
< 10 ms / < 10 ms

100 mV

10 mA

0.2% + 120 mV

0.5% + 25 mA

100 ± 4 V

230 V~ +10 / −15%

47 ... 63 Hz

500 VA, 340 W

45 VA, 15 W

690 VA

230 V~ +10 / −15%

47 ... 63 Hz

500 VA, 340 W

45 VA, 15 W

690 VA

eff
eff

eff

8 GMC-I Messtechnik GmbH

Electrical Data, Series 320 W

If not otherwise specified, all entries are maximum values and are valid for an operating temperature range of 0 to 50 °C,
nominal power range and a line voltage range of 230 V ± 10% after a warm-up period of 30 minutes.

Description (abbreviated designation) SLP 320-32

Typ e 32 N 32 R 18

Nominal Output Data Voltage setting range 0 ... 32 V

Current setting range 0 ... 18 A

Continuous power where Tu ≤ 40 °C max. 320 W

Intermittent power where t < 90 s / Tu ≤ 25 °C max. 430 W

Current derating where Tu > 40 °C – 0.5 A / K

Output Operating Characteristics

Overall setting accuracy at 23 ± 5 °C
with reference to 3½ place setpoint display
including system deviation, load / mains

Static system deviation
at 100% load variation

Static system deviation
at 10% line voltage variation

Residual ripple
Ua > 5% U

nom

1)

1)

1)

1)

1)

Voltage (10 Hz ... 10 MHz)

Current (10 Hz ... 1 MHz)

Common-mode noise (10 Hz ... 1 MHz) 0.5 mA

Settling time (voltage)
with sudden load variation of 10 ... 90% I

nom

Under and overshooting with sudden load variation of

(Typical values) Δ I = 80%
(Typical values) Δ I = 80% 450 mV

50 A / ms

Settling time (voltage)
with setpoint jump: 0 → 100%
with setpoint jump: 100% → 0

no load / nominal load
no load / nominal load

Settling time (current)
with setpoint jump: 0 → 100%
with setpoint jump: 100% → 0

short-circuit / nominal load
short-circuit / nominal load

Measured Value Displays (3½ place)

Measurement resolution Voltage

Measuring accuracy at 23 ± 5 °C
with reference to the respective measured value

Protective Functions

Output overvoltage protection Threshold 40 ± 1 V

Reversed polarity protection – overload capacity Continuous 20 A

Reverse flow resistance Continuous 64 V

General

Power supply

1)

Power Consumption At nominal load

At max. intermittent power

Efficiency At nominal load > 69%

Switching frequency Typical 200 kHz

Article number K234A

1) Typical values are increased by a factor of approximately 1.2 in the functional line voltage input range of –10% to –15%.

Voltage
Current

Voltage
Current

Voltage
Current

0.2% + 150 mV

0.5% + 50 mA

30 mV
40 mA

10 mV
20 mA

30 mV

50 mA

(Ua > 10%U

eff

To le ra nc e

64 mV

500 μs

To le ra nc e

64 mV
1 ms / 1 ms
1 ms / 1 ms

To le ra nc e

180 mA
< 5 ms / < 5 ms
< 5 ms / < 5 ms

100 mV

Current

Voltage
Current

10 mA

0.2% + 120 mV

0.5% + 40 mA

Line voltage 230 V~ +10 / −15%

47 ... 63 Hz

650 VA, 460 W

In standby mode

50 VA, 15 W

770 VA

eff

)

nom

eff

GMC-I Messtechnik GmbH 9