Iso-tech IPS 3303D, IPS 3303S, IPS 4303S, IPS 2303S User Manual

Instruction Manual

IPS X303 Series

DC Power Supply

EN FR

	Table of Contents
Table of Contents
SAFETY INSTRUCTIONS ............................................................	5
OVERVIEW ................................................................................	9
Introduction .............................................................	9
Series Lineup / Main Features ................................	11
Principle of Operation ............................................	12
CV/CC Crossover Characteristics ...........................	14
FRONT AND REAR PANELS ......................................................	15
Front Panel Overview ............................................	15
Rear Panel Overview .............................................	19
SETUP ....................................................................................	20
Power Up ..............................................................	20
Load Cable Connection ..........................................	21
Output On/Off ........................................................	22
Beep On/Off ..........................................................	22
Switch between channels .......................................	23
Front Panel Lock ...................................................	23
OPERATION ............................................................................	24
CH1/CH2 Independent Mode ..................................	24
CH3 Independent Mode .........................................	26
CH4 Independent Mode .........................................	28
CH1/CH2 Tracking Series Mode .............................	29
CH1/CH2 Tracking Parallel Mode ...........................	34
SAVE/RECALL SETUP ..............................................................	36
Save Setup ...........................................................	36
Recall Setup..........................................................	37
REMOTE CONTROL .................................................................	38
Remote Control Setup............................................	38
Remote Connection Step........................................	39
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	IPS X303 Series Instruction Manual
Command Syntax ...................................................	40
Error Messages .....................................................	41
Command List........................................................	42
Command Details...................................................	43
APPENDIX ...............................................................................	48
Fuse Replacement .................................................	48
SPECIFICATIONS .....................................................................	49
FAQ .........................................................................................	52
INDEX .....................................................................................	53

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SAFETY INSTRUCTIONS

SAFETY INSTRUCTIONS

This chapter contains important safety instructions that you must follow when operating the IPS X303 series and when keeping it in storage. Read the following before any operation to insure your safety and to keep the best condition for the IPS X303 series.

Safety Symbols

These safety symbols may appear in this manual or on the IPS X303 series.

WARNING

CAUTION

Warning: Identifies conditions or practices that could result in injury or loss of life.

Caution: Identifies conditions or practices that could result in damage to the IPS X303 series or to other properties.

DANGER High Voltage

Attention Refer to the Manual

Protective Conductor Terminal

Earth (ground) Terminal

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IPS X303 Series Instruction Manual

Safety Guidelines

General

Guidelines

CAUTION

Do not place any heavy object on the IPS X303 series.

Avoid severe impacts or rough handling that leads to damaging the IPS X303 series.

Do not discharge static electricity to the IPS X303 series.

Do not block or obstruct the cooling fan vent opening.

Do not perform measurement at circuits directly connected to Mains (see note below).

Do not disassemble the IPS X303 series unless you are qualified as service personnel.

(Measurement categories) EN 61010-1:2001 specifies the measurement categories and their requirements as follows. The IPS X303 series falls under category I.

Measurement category IV is for measurement performed at the source of low-voltage installation.

Measurement category III is for measurement performed in the building installation.

Measurement category II is for measurement performed on the circuits directly connected to the low voltage installation.

Measurement category I is for measurements performed on circuits not directly connected to Mains.

Power Supply		AC Input voltage: 100V/120V/220V/230V ±10%, 50/60Hz
WARNING		Connect the protective grounding conductor of the AC power cord to
		an earth ground, to avoid electrical shock.

Fuse

WARNING

Fuse type: 100V/120V: T6.3A/250V, 220V/230V: T3.15A/250V

Make sure the correct type of fuse is installed before power up.

To ensure fire protection, replace the fuse only with the specified type and rating.

Disconnect the power cord before fuse replacement.

Make sure the cause of fuse blowout is fixed before fuse replacement.

Cleaning the IPS	Disconnect the power cord before cleaning.
X303 series	Use a soft cloth dampened in a solution of mild detergent and water.
	Do not spray any liquid.
	Do not use chemicals or cleaners containing harsh products such as
	benzene, toluene, xylene, and acetone.
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						SAFETY INSTRUCTIONS
	Operation					Location: Indoor, no direct sunlight, dust free, almost non-conductive
	Environment					pollution (note below)
					Relative Humidity: < 80%
						Altitude: < 2,000m
					Temperature: 0 to 40°C
					(Pollution Degree) EN 61010-1:2001 specifies the pollution degrees and
					their requirements as follows. The IPS X303 series falls under degree 2.
					Pollution refers to “addition of foreign matter, solid, liquid, or gaseous
					(ionized gases), that may produce a reduction of dielectric strength or
					surface resistivity”.
					Pollution degree 1: No pollution or only dry, non-conductive pollution
						occurs. The pollution has no influence.
					Pollution degree 2: Normally only non-conductive pollution occurs.
						Occasionally, however, a temporary conductivity caused by
						condensation must be expected.
					Pollution degree 3: Conductive pollution occurs, or dry, non-
						conductive pollution occurs which becomes conductive due to
						condensation which is expected. In such conditions, equipment is
						normally protected against exposure to direct sunlight, precipitation,
						and full wind pressure, but neither temperature nor humidity is
						controlled.
	Storage					Location: Indoor
	environment					Relative Humidity: < 70%
					Temperature: −10 to 70°C

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IPS X303 Series Instruction Manual

Power cord for the United Kingdom

When using the IPS X303 series in the United Kingdom, make sure the power cord meets the following safety instructions.

NOTE: This lead/appliance must only be wired by competent persons

WARNING: THIS APPLIANCE MUST BE EARTHED

IMPORTANT: The wires in this lead are coloured in accordance with the following code:

Green/ Yellow:	Earth
Blue:	Neutral
Brown:	Live (Phase)

As the colours of the wires in main leads may not correspond with the colours marking identified in your plug/appliance, proceed as follows:

The wire which is coloured Green & Yellow must be connected to the Earth terminal marked with the letter E or by the earth symbol or coloured Green or Green & Yellow.

The wire which is coloured Blue must be connected to the terminal which is marked with the letter N or coloured Blue or Black.

The wire which is coloured Brown must be connected to the terminal marked with the letter L or P or coloured Brown or Red.

If in doubt, consult the instructions provided with the equipment or contact the supplier.

This cable/appliance should be protected by a suitably rated and approved HBC mains fuse: refer to the rating information on the equipment and/or user instructions for details. As a guide, cable of 0.75mm2 should be protected by a 3A or 5A fuse. Larger conductors would normally require 13A types, depending on the connection method used.

Any moulded mains connector that requires removal /replacement must be destroyed by removal of any fuse & fuse carrier and disposed of immediately, as a plug with bared wires is hazardous if a engaged in live socket. Any re-wiring must be carried out in accordance with the information detailed on this label.

8

OVERVIEW

OVERVIEW

	This chapter describes the IPS X303 series in a nutshell, including its
	main features and front / rear panel introduction. After going through the
	overview, follow the Setup chapter (page 20) to properly power up and
	set operation environment.
Introduction
Overview	The IPS X303 regulated DC power supply series, are light weight,
	adjustable, multifunctional work stations. The IPS 2303S has two
	adjustable voltage outputs. The IPS 3303S has three independent
	outputs: two with adjustable voltage level and one with fixed level
	selectable from 2.5V, 3.3V and 5V. The IPS 4303S has four independent
	voltage outputs that are all fully adjustable. The IPS X303 series can be
	used for logic circuits where various output voltage or current are
	needed, and for tracking mode definition systems where plus and minus
	voltages with insignificant error are required.
Independent /	The three output modes of IPS X303 series, independent, tracking
Tracking Series /	series, and tracking parallel, can be selected through pressing the
Tracking Parallel	TRACKING key on the front panel. In the independent mode, the output
	voltage and current of each channel are controlled separately. The
	isolation degree, from output terminal to chassis or from output terminal
	to output terminal, is 300V. In the tracking modes, both the CH1 and CH2
	outputs are automatically connected in series or parallel; no need to
	connect output leads. In the series mode, the output voltage is doubled;
	in the parallel mode, the output current is doubled.

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					IPS X303 Series Instruction Manual
	Constant Voltage/				Each output channel is completely transistorized and well-regulated, and
	Constant Current				works in constant voltage (CV) or constant current (CC) mode. Even at
					the maximum output current, a fully rated, continuously adjustable output
					voltage is provided. For a big load, the power supply can be used as a
					CV source; while for a small load, a CC source. When in the CV mode
					(independent or tracking mode), output current (overload or short circuit)
					can be controlled via the front panel. When in the CC mode (independent
					mode only), the maximum (ceiling) output voltage can be controlled via
					the front panel. The power supply will automatically cross over from CV
					to CC operation when the output current reaches the target value. The
					power supply will automatically cross over from CC to CV when the
					output voltage reaches the target value. For more details about CV/CC
					mode operation, see page 14.

Automatic tracking	The front panel display (CH1, CH2) shows the output voltage or current.
mode	When operating in the tracking mode, the power supply will automatically
	connect to the autotracking mode.
Dynamic load	When used in audio production lines, the power supply will provide a
	continuous or dynamic load using a jumper connector (JP101/JP401)..
	When the connectors are connected to the position “ON”, a stable DC
	current power will be provided for audio power amplifiers.

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OVERVIEW

Series Lineup / Main Features
Series Lineup
Model	V Meter A Meter		USB	Tracking Error
IPS 3303D	3 digit	3 digit	Yes	≤ 0.5% + 50mV of Master
IPS 2303S	5 digit	4 digit	Yes	≤ 0.5% + 10mV of Master
IPS 3303S	5 digit	4 digit	Yes	≤ 0.5% + 10mV of Master
IPS 4303S	5 digit	4 digit	Yes	≤ 0.5% + 10mV of Master

Main Features
Performance		Low noise: Cooling fan controlled by Heat sink temperature
	Compact size, light weight
Operation		Constant Voltage / Constant Current operation
	Tracking Series / Tracking parallel operation
		Output On/Off control
		Multi-output:
		IPS 2303S: 30V/3A x2;
		IPS 3303S: 30V/3A x2, 2.5V/3.3V/5V/3A x 1
		IPS 4303S: 30V/3A x2, 5V/1A x1, 5V/3A (10V/1A) x1
		Digital panel control
	4 sets of panel setup save/recall
	Coarse and fine Voltage/Current control
		Software calibration
		Buzzer output
		Key lock function
Protection		Overload protection
		Reverse polarity protection
Interface		USB for remote control

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IPS X303 Series Instruction Manual

Principle of Operation

Overview The power supply consists of the following.

AC input circuit

Transformer

Bias power supply including rectifier, filter, pre-regulator and reference voltage source

Main regulator circuit including the main rectifier and filter, series regulator, current comparator, voltage comparator, reference voltage

amplifier, remote device and relay control circuit

The block diagram below shows the circuit arrangement. The single phase input power is connected to the transformer through the input circuit. Details of each part are described in the next page.

Block diagram

	Reference	Auxiliary	AC Input
				Relay
	Voltage	Rectifier &
				Control
	Source	Filter
			Transformer
	Current			Main
		“OR” Gate	Amplifier	Rectifier &
	Comparator
				Filter
				O/P
	Voltage	Voltage	Series	Instant Over
				Load
	Amplifier	Comparator	Regulator
				Protection

Rectifier	The auxiliary rectifiers D1011 to D1014 provide bias voltage filtered by
	the capacitors C102 and C103, for the pre-regulators U101 and U102.
	They provide a regulated voltage for other modules.
Main Rectifier	The main rectifier is a full wave bridge rectifier. It provides the power
	after the rectifier is filtered by the capacitor C101, and then regulated via
	a series-wound regulator, which is finally delivered to the output terminal.
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					OVERVIEW
	Current Limiter				U104 acts as a current limiter. When the current is over predetermined
					rating, U104 is activated and decreases the current. U208 provides a
					reference voltage. U206 is the inverter amplifier. U103 is a comparator
					amplifier which compares reference voltage and feedback voltage, and
					then delivers to Q102, which then calibrates the output voltage.
	Overload				When the unit is overloaded, Q107 activates to control the current
					magnitude of Q102, to limit the output current. The relay control circuit
					controls the power dissipation in the series-wound regulated circuit.

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					IPS X303 Series Instruction Manual
	CV/CC Crossover Characteristics
	Background				The IPS X303 series automatically switches between constant voltage
					mode (CV) and constant current mode (CC), according to load condition.
	CV mode				When the current level is smaller than the output setting, the IPS X303
					series operates in Constant Voltage mode. The indicator on the front
					panel turns green (C.V.) The Voltage level is kept at the setting and the
					Current level fluctuates according to the load condition until it reaches
					the output current setting.
	CC mode				When the current level reaches the output setting, the IPS X303 series
					starts operating in Constant Current mode. The indicator on the front
					panel turns red (C.C.) The Current level is kept at the setting but the

Voltage level becomes lower than the setting, in order to suppress the output power level from overload. When the current level becomes lower than the setting, the IPS X303 series goes back to the Constant Voltage mode.

Diagram	Vout
	Vmax
	Constant
	Voltage
	Constant
	Current
	Imax	Iout

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FRONT AND REAR PANELS

FRONT AND REAR PANELS
Front Panel Overview
VoltMeter	Channel		Ammeter		Memory Keys			CH1/CH3, CH2/
	Indicator							CH4(Beep) Keys
					DC Power Supply	MEMORY				VOLTAGE
										Push
	CH4	CH2	CH1		CH3	RECALL/ SAVE
										COARSE/ FINE
							1	CH1/3	FINE		Voltage
											Knobs
V					V		2	CH2/4
								BEEP			Parallel
							3	PARA		CURRENT
								/ INDEP			Keys
										Push
										COARSE/ FINE	Series Keys
							4	/ INDEP	FINE
								SER
A					A
							LOCK	OUTPUT			Current
							UNLOCK				Knobs
							: Long Push
											Output Key
	0	5V , 1A	0	30V , 3A		0	30V ,3A		0	5V , 3A	Lock Key
				SLAVE			MASTER		5 10V , 1A
	C.V.	C.C.	C.V.	C.C . PAR.		C.V.	C.C.		C.V.	C.C.
POWER
		CH4		CH2	GND		CH 1		CH3
				SERIES OUTPUT		COM		+
					PARA OUTPUT			+

CH4 Output CH2 Output GND Terminal

CH1 Output CH3 Output

Power

CH4 CV/CC

CH2 CV/CC/PAR

CH1 CV/CC

CH3 CV/CC

Switch

Indicator

Indicator

Indicator

Indicator

Display

Volt Meter

Displays output current of each channel.

IPS 4303S: CH1/CH3 and CH2/CH4

IPS 2303S/3303S: CH1 and CH2

IPS X303S (5 digits)

IPS 3303D (3 digits)

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IPS X303 Series Instruction Manual

Amp Meter

Displays output current of each channel.

IPS 4303S: CH1/CH3 and CH2/CH4

IPS 2303S/3303S: CH1 and CH2

IPS X303S (4 digits)

IPS 3303D (3 digits)

Control Panel

MEMORY

Memory Keys

RECALL /SAVE

1

2

Saves or recalls panel settings. Four settings, 1 to 4, are available. For save/recall details, see page 36.

3

4

CH1/CH2

CH1/3 and

CH2/4

Beep Keys

Parallel/Series

Keys

Lock Key

16

CH1

CH2

BEEP

CH1/3

CH2/4

BEEP

CH2/4 CH2

BEEP BEEP

PARA /INDEP

SER /INDEP

LOCK

UNLOCK

IPS 2303S/3303S: Selects the output channel (CH1/CH2) for level adjustment. For level setting details, see 22.

IPS 4303S: Selects the output channel (CH1/3 and CH2/4) for level adjustment.

Pressing and holding the CH2 (IPS 2303S/3303S) or the CH2/4 key (IPS 4303S) enables the beeper sound. For details, see page 22.

Activates Tracking Parallel operation or Tracking Series operation, For details, see page 28.

Locks or unlocks the front panel keys (excluding the OUTPUT key). Pressing the LOCK key will also exit remote mode if the machine is in remote mode. For details, see page 23.

FRONT AND REAR PANELS

Output Key	OUTPUT

Voltage Knobs	VOLTAGE
	Push
	COARSE/FINE
	FINE

Current Knobs	CURRENT
	Push
	COARSE/FINE
	FINE

POWER

Power Switch

Terminals

Default Terminals

GND Terminal			GND
CH1 Output	0		30V , 3A
		MASTER
CH1 CV/CC	C.V.		C.C.
Indicator			CH1
CH1 Output
	COM		+
			+

Turns the output on or off.

Adjusts the output voltage level for the selected channel. Pressing the knob switches coarse and fine level setting.

Adjusts the output current level for the selected channel. Pressing the knob switches coarse and fine level setting.

Turns On or Off the main power. For power up sequence, see page 20.

European Terminals

Accepts a grounding wire.

Indicates CH1 Constant Voltage or Constant Current state.

Outputs CH1 voltage and current.

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