Aim-TTi CPX200D Instruction Manual

CPX200D & DP

PowerFlex Dual DC Power Supply

INSTRUCTION MANUAL

Table of Contents

Specification 2 Safety 5 Installation 6 Connections 7 Manual Operation 9 Remote Interface Operation (CPX200DP only) 15 Remote Commands (CPX200DP only) 25 Maintenance 30

Note: The latest revisions of this manual, device drivers and software tools can be downloaded from: http://www.aimtti.com/support

This manual is 48511-1720 Issue 8

Voltage Range:

0V to 60V

Current Range:

0A to 10A

figures given above.

Power Range:

Up to 180W

Output Voltage Setting:

By coarse and fine controls.

Output Current Setting:

By single logarithmic co ntrol.

most useful in limiting operation to a particular part of the Power Envelope.

(S-Lock)

Lock accuracy is equal to meter accuracy (see Meter Specification)

Output Switch:

Electronic. Preset voltage and current displayed when off.

Rear Panel: Barrier strip connections (CPX200DP only)

push terminals on front panel and barrier strip on rear panel (CPX200DP only).

Reverse protection by diode clamp for reverse currents up to 3A.

should be applied across the terminals is 70V.

For CPX200D, OCP is fixed at 11A.

Specification

General specifications apply for the temperature range 5°C to 40°C. Accuracy specifications apply for the temperature range 18°C to 28°C after 1 hour warm-up with no load and calibration at 23°C. Typical specifications are determined by design and are not guaranteed.

OUTPUT SPECIFICATIONS

Note: In manual operation, actual maxima for voltage and current are typically 1% greater than the

CPX200D & DP Power Envelope (per channel)

Operating Mode:

Operating Ranges: Four selectable ranges: 60V/10A, 60V/3A, 16V/10A and Custom Limits.

Settings Lock:

Output T e rminals: Front panel: Universal 4mm safety binding posts on 19mm (0·75”) pitch.

Constant voltage (CV) or constant current (CC) with automatic crossover, provided that the power demanded stays within the power envelope, see graph. Outside of this envelope the output becomes unregulated.

Any V/I setting of the 60V/3A or 16V/10A ranges always falls within the appropriate part of the Power Envelope.

The 60V/10A range permits any setting up to 60V and 10A but the output will become unregulated if operated outside of the Power Envelope, see above.

The voltage and current limits of the Custom Limits range can be set to any V

between 0.1V & 60V and I

max

Voltage and current settings can be locked by a single button press.

between 0.01A and 10A. This facility is

max

Output Sensing: Switchable between local and remote. Remote connection by spring-loaded

Output Protection: Forward protection by Over-Voltage Protection (OVP) and Over-Current

Protection (OCP) trips.

OVP Range: 1V to 66V set by front panel screwdriver adjustment or via the remote

interfaces (CPX200DP only). Setting resolution: 100mV. Accuracy: ± (1% of setting ± 200mV). Response time: Typically 1ms. Maximum voltage that

OCP Range: Measure-and-compare over-current protection is implemented in firmware and

can only be set via the remote interfaces (CPX200DP only). Setting resolution: 10mA. Accuracy: ± (0.3% of setting ± 30mA).

Response time: typically 500ms.

Protection:

excessively.

Constant current: <0.01% of maximum output

Constant current: <0.05% of maximum output

(20MHz bandwidth):

Typically <1mVrms, <15mV pk-pk; 3mVrms max.

Temperature Coefficient:

Typically <100ppm/°C

Meter Types:

Dual 4 digit meters with 10mm (0.39") LEDs. Reading rate 4 Hz.

Meter Resolutions:

10mV, 10mA

Current 0.3% of reading ± 2 digits

single power supplies.

Tracking Accuracy:

Slave voltage = Master voltage ± (0.1% of Master voltage ± 20mV)

This key operates in all modes.

Over-temperature

The output will be tripped off if a fault causes the internal temperature to rise

Line Regulation: Change in output for a 10% line change:

Constant voltage: <0.01% of maximum output

Load Regulation: Change in output for any load change within PowerFlex envelope, remote

sense connected: Constant voltage: <0.01% of maximum output

Ripple & Noise

Transient Load

Both outputs loaded at 16V/10A , CV mode:

<250us to within 50mV of set level for a 5% to 95% load change.

Response: Voltage Programming

Speed

(CPX200DP only):

Typical time required for output to settle within 1% of its total excursion (for resistive load). Excludes command processing time.

Range and Setting 90% Load No Load 90% Load No Load

60V 3A 16V 10A

Up Up

15ms

5ms

10ms

5ms

Down Down

200ms

20ms

1.5s

Status Indication: Output ON lamp.

Constant voltage mode lamp. Constant current mode lamp. Unregulated (power limit) lamp Remote lamp

(CPX200DP only)

LAN lamp Trip message on display.

METER SPECIFICATIONS

Meter Accuracies: Voltage 0.1% of reading ± 2 digits

ADDITIONAL SPECIFICATIONS

Independent Mode: Each output is fully independent and isolated. Operation is equivalent to two

VoltageTrack ing Mode: (V

TRACK

)

With V

selected the voltage controls of Output 1 (the Master) set an

TRACK

identical voltage on Output 2. The outputs remain isolated and the current controls remain independent. Locking the Master (S-Lock) also locks the voltage of Output 2.

Synchronous On/Off: In addition to the independent DC On/Off controls for each output, the outputs

can be turned on or off simultaneously using the Synchronous On/Off key.

Voltage Setting:

16-bit, Resolution 10mV, Accuracy ± (0·05% +10mV)

Current Setting:

16-bit, Resolution 1mA, Accuracy ± (0·3% + 0·005A)

RS232:

Standard 9-pin D-connector . Baud rate 9600.

GPIB:

Conforming with IEEE488.1 and IEEE488.2

USB:

Standard USB 2.0 hardware connection. Operates as a virtual COM port.

LAN:

Ethernet 100/10base-T hardware connection. 1.4 LXI Core 2011.

change.

Installation Category II.

Power Consumption:

600VA max.

Operating Range:

+5ºC to +40ºC, 20% to 80% RH.

Storage Rang e:

−40ºC to + 70ºC.

Environmental:

Indoor use at altitudes up to 2000m, Pollution Degree 2.

via http://www.aimtti.com/support (serial no. needed).

(optional rack mounting kit available).

DIGITAL INTERFACES (CP X200DP only)

Full digital remote control facilities are available through the RS232, USB, LAN and GPIB interfaces.

Remote Command Processing Time:

Typically <25ms between receiving the command terminator for a step voltage change at the instrument and the output voltage beginning to

GENERAL

AC Input: 110V – 240V AC ± 10%, 50/60Hz.

Safety & EMC: Complies with EN61010-1 & EN61326-1.

For details, request the EU Declaration of Conformity for this instrument

Size: 210 x 130 x 375mm (WxHxD) half rack width x 3U height

Weight: 5.4kg

Safety

This power supply is a Safety Class I instrument according to IEC classification and has been designed to meet the requirements of EN61010-1 (Safety Requirements for Electrical Equipment for Measurement, Control and Laboratory Use). It is an Installation Category II instrument intended for operation from a normal single phase supply.

This instrument has been tested in accordance with EN61010-1 and has been supplied in a safe condition. This instruction manual contains some information and warnings which have to be followed by the user to ensure safe operation and to retain the instrument in a safe condition.

This instrument has been designed for indoor use in a Pollution Degree 2 environment in the temperature range 5°C to 40°C, 20% - 80% RH (non-condensing). It may occasionally be subjected to temperatures between +5°C and –10°C without degradation of its safety. Do not operate while condensation is present.

Use of this instrument in a manner not specified by these instructions may impair the safety protection provided. Do not operate the instrument outside its rated supply voltages or environmental range.

WARNING! THIS INSTRUMENT MUST BE EARTHED

Any interruption of the mains earth conductor inside or outside the instrument will make the instrument dangerous. Intentional interruption is prohibited. The protective action must not be negated by the use of an extension cord without a protective conductor.

When the instrument is connected to its supply, terminals may be live and opening the covers or removal of parts (except those to which access can be gained by hand) is likely to expose live parts. The apparatus shall be disconnected from all voltage sources before it is opened for any adjustment, replacement, maintenance or repair. Capacitors inside the power supply may still be charged even if the power supply has been disconnected from all voltage sources but will be safely discharged about 10 minutes after switching off power.

Any adjustment, maintenance and repair of the opened instrument under voltage shall be avoided as far as possible and, if inevitable, shall be carried out only by a skilled person who is aware of the hazard involved.

If the instrument is clearly defective, has been subject to mechanical damage, excessive moisture or chemical corrosion the safety protection may be impaired and the apparatus should be withdrawn from use and returned for checking and repair.

Make sure that only fuses with the required rated current and of the specified type are used for replacement. The use of makeshift fuses and the short-circuiting of fuse holders is prohibited.

Do not wet the instrument when cleaning it. The following symbols are used on the instrument and in this manual:-

Earth (ground) terminal.

mains supply OFF.

mains supply ON. alternating current (ac)

Mains Operating Voltage

This instrument has a universal input range and will operate from a nominal 115V or 230V mains supply without adjustment. Check that the local supply meets the AC Input requirement given in the Specification.

Mains Lead

Connect the instrument to the AC supply using the mains lead provided. Should a mains plug be required for a different mains outlet socket, a suitably rated and approved mains lead set should be used which is fitted with the required wall plug and an IEC60320 C13 connector for the instrument end. To determine the minimum current rating of the lead-set for the intended AC supply, refer to the power rating information on the equipment or in the Specification.

Any interruption of the mains earth conductor inside or outside the instrument will make the instrument dangerous. Intentional interruption is prohibited.

Ventilation

The power supply is cooled by an intelligent multi-speed fan which vents at the rear. Take care not to restrict the air inlets at top, bottom and side panels or the exit at the rear. In rack-mounted situations allow adequate space around the instrument and/or use a fan tray for forced cooling.

Installation

WARNING! THIS INSTRUMENT MUST BE EARTHED.

Mounting

This instrument is suitable both for bench use and rack mounting. It is delivered with feet for bench mounting. The front feet include a tilt mechanism for optimal panel angle.

A rack kit for mounting one or two of these Half-width 3U high units in a 19” rack is available from the Manufacturers or their overseas agents.

Front Panel Connections

Connections

The load should be connected to the positive (red) and negative (black) terminals marked OUTPUT. The OUTPUT terminals are rated at 30A.

Remote sense connections to the load, if required, are made from the positive (+) and negative (−) SENSE terminals. Switch the LOCAL/REMOTE switch to REMOTE when remote sensing is required. Switch back to LOCAL when remote sensing is not in use.

The terminal marked is connected to the chassis and safety earth ground.

Rear Panel Connections (CPX200DP only)

−

Passively asserted (+V through 10kΩ)

TXD

Transmitted data from instrument

RXD

Received data to instrument

CTS

GND

Signal ground

RTS

Passively asserted (+V through 10kΩ)

DSR

No internal connection

DTR

9 CD

No internal connection

The output and sense terminals for OUTPUT1 and OUTPUT2 are duplicated on the rear panel terminal blocks and are marked

front panel equivalents. Switch the LOCAL/REMOTE switch to REMOTE when remote sensing is required. When the rear

panel Output terminals are used, the use of remote sense is always recommended to ensure that output regulation is maintained within specification; connections can be made to either the front or the rear remote sense terminals but never to both pairs of terminals at the same time. Switch back to LOCAL when remote sensing is not in use.

RS232 (CPX200DP only)

9−pin female D−connector with pin connections as shown below. Can be connected to a standard PC port using a fully wired 1:1 male-female cable without any cross-over connections.

Pin Name Description

, +S and −S. These connections are paralleled with their

Signal ground is connected to instrument ground.

USB (CPX200DP only)

The USB port is connected to instrument ground. It conforms with USB 2.0 (Full Speed) and accepts a standard USB cable. The Windows plug-and-play functions should automatically recognise that the instrument has been connected. If the correct driver is not found, follow the Windows on-screen prompts and install the required files from the CD supplied.

LAN (CPX200DP only)

The LAN interface is designed to meet 1.4 LXI ( Lan eXtensions for Instrumentation) Core 2011. Remote control using the LAN interface is possible using a TCP/IP Socket protocol. The instrument also contains a basic Web server which provides information on the unit and allows it to be configured. Since it is possible to misconfigure the LAN interface, making it impossible to communicate with the instrument over LAN, a LAN Configuration Initialise (LCI) mechanism is provided via a recessed switch on the rear panel (marked LAN RESET) to reset the unit to the factory default.

Further details are given in the Remote Operation chapter. For more information on LXI standards refer to www.lxistandard.org/home

GPIB (CPX200DP only)

The GPIB signal grounds are connected to the instrument ground. The implemented subsets are:

SH1 AH1 T6 TE0 L4 LE0 SR1 RL2 PP1 DC1 DT0 C0 E2

The GPIB address is set from the front panel.

OUTPUT

The operation of both outputs is identical; the following description applies to both.

Switching On

The power switch is located at the bottom left of the front panel. When the POWER switch is turned on ( l ), the lower meter of Output 1 briefly indicates the

instrument firmware revision; on the CPX200DP this is followed by the interface firmware revision (

IF shows in the upper meter) before the display shows Volts and Amps; the LAN lamp above

the right hand output meters will also light but will go off after ~30s if an operational LAN connection is not found, see LAN Error paragraph in LAN Interface section.

The dc output state at power-on can be set to be ‘always off’ or ‘same as at last power-off’. The setting can be changed as follows. With the VIEW key held down, press and hold down the OUTPUT key; the display will first show the present setting for 1 second (

default is still selected) before flashing the new setting for 2 seconds ( instance). After 2 seconds the new setting is shown continuously in the display and the change is

implemented; release the OUTPUT and VIEW keys. Repeating the procedure will change the setting back to the previous state. Note that the power-on status of the two outputs needs to be set individually.

Manual Operation

At power on, the factory default setting is for the output to be off. The preset output volts and current will be determined by the present control settings and shown in the display. The VIEW lamp is lit to indicate that it is the preset values that are being displayed. All other settings will be the same as they were at last power off.

OP OFF if the factory

LASt Set in this

Setting Up the Output

With the POWER switch on ( l ) and the OUTPUT switch off the output voltage and current limit can be accurately preset using the VOLTAGE and CURRENT controls; the upper meter shows the set voltage and the lower meter shows the set maximum current.

When the OUTPUT switch is switched on, the OUTPUT ON lamp and the CV (constant voltage) lamp light; the upper meter continues to show the set voltage but the lower meter now shows the actual load current.

Range Selection & Custom Limits

There are 4 possible ranges, selected by the keys immediately below the display; the associated lamp lights to show which range is selected. Because changing ranges can change the output voltage, range changing is only allowed if the output is off. If attempts are made to change range with the output on, the display will briefly show the message

flash to prompt the us er to turn the output off. The factory default range selection is the 60V/10A

The 60V/3A and 16V/10A ranges operate conventionally such that Constant Voltage (CV) operation is possible over the full voltage range, provided that the load current is below the range maximum; operation is always within the power envelope of the instrument. The VOLTAGE and CURRENT controls are always scaled to set the range maximum when fully clockwise.

turn oFF and the output lamp will

PowerFlex range which limits the maximum current at the set voltage to that determined by the power envelope or 10A, whichever is the lower, see Power Limit paragraph later in this section.

The CUSTOM LIMITS capability allows the maximum values of both the VOLTAGE and CURRENT controls to be redefined by the user such that the controls operate over specific, lower, ranges. This not only has the advantage of protecting against the accidental application of, for example, excess voltages to the load, but also provides higher resolution analogue control over the specified ranges using the full 300º rotation of the controls.

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