OWON OWP_H Series Quick Guide

Brand: OWON

Product Type: Programmable DC Power Source

Introduction

This document provides a quick guide for the OWON OWP_H Series Programmable DC Power Source. It covers essential information regarding the device's panels, interfaces, operation, settings, warranty, and troubleshooting.

For product support, visit: www.owon.com.hk/download

Document Information

Edition: Mar. 2022 edition V1.0.0

LILLIPUT's products are protected by patent rights. The information in this manual supersedes previously published materials. Specifications are subject to change without notice as LILLIPUT continues to improve its products.

OWON is the registered trademark of the LILLIPUT Company.

Manufacturer: Fujian LILLIPUT Optoelectronics Technology Co., Ltd.

Address: No. 19, Heming Road, Lantian Industrial Zone, Zhangzhou 363005 P.R. China

Contact:

Tel: +86-596-2130430
Fax: +86-596-2109272
Web: www.owon.com
E-mail: info@owon.com.cn

General Warranty

OWON warrants products against defects in materials and workmanship for 2 years (1 year for accessories) from the date of purchase by the original purchaser. This warranty is non-transferable.

If a product proves defective during the warranty period, OWON will repair or replace it free of charge. Replaced parts, modules, or products may be new or reconditioned.

To obtain service, customers must notify OWON before the warranty expires and provide proof of purchase. The customer is responsible for packaging and shipping the defective product to the designated service center.

This warranty does not cover defects caused by:

Improper use or inadequate maintenance.
Unauthorized installation, repair, or servicing attempts.
Improper use or connection to incompatible equipment.
Use of non-OWON supplies.
Modifications or integrations that increase servicing difficulty.

Please contact the nearest Sales and Service Offices for services.

OWON disclaims any implied guarantees for maintenance and is not responsible for indirect, special, or consequential damages.

1 Back Panel

The back panel features several connection ports:

1. DC output terminal: RED "+", BLACK "-"
2. Remote voltage compensation
3. Duct outlet: Ensure no obstructions within 10 cm.
4. RS485 interface: Female connector.
5. CAN interface
6. Dry contact/Analog interface
7. AC Input

1.1 Interface

The device offers various interfaces:

DRY/Analog Port

This port supports Digital IO and Analog signals.

Interface	PIN	Function
Digital IO	1	Normally open contact (Output of the dry contact)
	2	Common contact (Output of the dry contact)
	3	Normally closed contact (Output of the dry contact)
	4	NC (Not Connected)
	5	Input of the dry contact
	6	Input of the dry contact
Analog	1	Matching analog1 "+"
	2	Matching analog1 "-"
	3	Matching analog1 "+"
	4	Matching analog1 "-"
RS485	1	485-A
RS485	2	485-B
CAN	2	CAN-L
	7	CAN-H
	1/3~6/8	NC (Not Connected)

Digital IO Interface Details: PIN 1 to 3 provide complementary normally open and normally closed dry contact outputs. PIN2 is the common end. Dry contact output capacity is 1A/30VDC or 0.15A/220VAC. PIN 5 to 6 are for dry contact input.

Analog Interface: Optional and customizable, supporting up to four analog signals (two inputs, two outputs). For 3-4 analog signals, the interface is RJ45-CAN1, with specific pin definitions for analog input 1, analog input 2, analog output 1, and analog output 2.

RS485 Interface: Serial communication interface (Female) using standard Modbus-RTU protocol.

CAN Interface: CAN1 and CAN2 are internal parallel CAN bus interfaces for serial or parallel device connection and external communication.

1.2 Voltage Compensation

To utilize the remote voltage compensation function, use high-insulation twisted-pair cables. Ensure positive and negative cables are not connected inversely. When not in use, short the compensation terminals (SENSE) PIN1 and PIN2, and PIN3 and PIN4 with short cables.

Diagram Description (Figure 3: Schematic diagram of voltage compensation wiring): Illustrates the wiring for voltage compensation, showing the compensation line, load, and long cable connection.

1.3 Parallel Connection

The device manages parallel output through CAN communication. The diagram shows the parallel connection setup.

Diagram Description (Figure 4: Parallel schematic diagram): Depicts the parallel connection of devices, including power lines and CAN communication lines.

Note: A 120 Ω (Ohm) CAN bus terminal resistor is used.

2 Front Panel

Diagram Description (Figure 5: Front panel): Shows the front panel layout, including the ship type switch, display area, series/parallel status area, and operating area with various control buttons and a knob.

Diagram Description (Figure 6: Display area): Represents the device's display, showing voltage, current, and power settings and readings, working time, and local control mode (CV).

2.1 Display Area

The main display provides real-time operating status information, including:

Display area: Current real-time output information.
Setting area: Voltage, current, and power reference values, and voltage/current priority settings.
Status area: Buzzer status, lock key state, date and time, working time, and dry contact and application mode status.
Mode area: Control mode and output mode.
Series/parallel status area: Displays master/slave machine number and CAN data status when multiple machines are used in series/parallel.

Note 1: Display elements in the status area can be hidden. Application mode status and dry contact status icons are shown when applicable.

Note 2: Output modes include Common Mode (CV, CC, CP) and Application Mode (e.g., CV Steps, CC Steps, Hybrid steps).

2.1.1 Home

Diagram Description (Figure 7: Homes): Illustrates three types of Home screens.

The device features three Home screens:

Home: Displays comprehensive real-time working status.
Auxiliary Home: Maximizes real-time output information.
Waveform Home: Displays output real-time information in an intuitive waveform manner.

Note 1: The Home screen is used for setting voltage, current, and power reference values.

Note 2: Press "ENTER" to set the waveform sampling rate. Waveform display can be controlled by pressing "VOLT", "CURR", or "POWER" keys.

2.2 Operating Area

The operating area includes setting, function, digital, and knob controls.

Key	Description	Key	Description
VOLT	Voltage reference set	0~9	Number set
CURR	Current reference set	.	DOT
VOLT Double Click	Voltage priority switching	ENTER	To Menu / Confirm input; Switch between Home and Auxiliary Home
CURR Double Click	Current priority switching	Knob	Description: Menu, Confirm Input
VOLT+CURR	Power reference set	Knob	Press: 1. Press once, Voltage set; 2. Press twice, Current set; 3. Press 3 times, Power set
LOCK	Lock/Unlock
ON/OFF	Output ON/OFF	Knob Rotation	Clockwise: Increase value, Up shift
←	Left/Up shift		Anti-Clockwise: Decrease value, Down shift
↓	Right/Down shift
DEL	Delete
EXIT	Returns the previous level or exit setting
SAVE	Save current settings
RECALL	Recall the saved settings
L/R	Local/remote control mode
CONF	Function Menu

2.2.1 Basic Operation

Diagram Description (Figure 8: Reference setting): Shows how to set voltage reference values using the VOLT key or the knob.

Voltage reference setting: Press the "VOLT" key or the "Knob" key to edit the voltage reference value. Enter a valid value and press "ENTER" or the "knob" key to confirm.
Current reference setting: Press the "CURR" key or the "Knob" key twice to edit the current reference value. Enter a valid value and press "ENTER" or the "knob" key to confirm.
Power reference setting: Press "VOLT" and "CURR" keys simultaneously or press the "Knob" key three times to edit the power reference value. Enter a valid value and press "ENTER" or the "knob" key to confirm.
Open and close output: Press the "ON/OFF" key to open (light on) or close (light off) the output.
Voltage/current priority switching: Close the output and double-click "VOLT" or "CURR" key to switch priority (takes 1 second).
SAVE Setting: Press "SAVE" to save common mode or application mode data.
Recall setting: Press "RECALL", use arrow keys to select data type/pre-called data, and press "ENTER" to confirm.
Local/Remote mode switching: Press "L/R" to switch between local and remote modes temporarily.
Buzzer control: In system settings, select "Buzzer" and press "ENTER" to adjust the level.

Note 1: Common mode data includes voltage, current, power reference values, and function/protection settings.

Note 2: When setting reference values, the preset area displays above the element. Use number or knob keys to enter values. Knob operation flashes the bit to be operated; use arrow keys to select position.

Note 3: For local/remote mode settings, refer to the "LCD Menu -> User Settings -> Function setting" section in the full OWP_H Series Use Manual.

3 Appendix

3.1 Accessory

The product package includes:

Certificate x1
Quick guide x1
1.5m input power line x1
6PIN terminal block x1

3.2 Key Description

Area	Abbreviation	Description
Setting	VOLT	Voltage reference setting
	CURR	Current reference set
	VOLT+CURR	Power reference setting
	LOCK	Lock/unlock key
	ON/OFF	Open/close output
Function	←	Move the cursor one bit to the left (numeric Settings)
	↑	Move up one line
	→	Move the cursor one bit to the right (numeric Settings)
	↓	Move down one line
	DEL	Deletes the value of the current bit
	EXIT	Return to the previous level or exit the setting
	SAVE	Save the normal data (In normal mode) / Save App data (In data mode)
	RECALL	Recall saved data on Home
	L/R	Switch local/remote mode
	CONF	Enter the function UI
Figure	0~9	Enter figure
	.	Enter decimal point "."
	ENTER	Enter the menu / Input confirm
Knob	Clockwise	Increment the input value (numeric Settings) / Move Up N line
Knob	Anticlockwise	Decrease the input value (numeric Settings) / Move Down N line

Press Actions:

Enter the menu / Input confirm.
Under the home: 1. Press to set voltage reference; 2. Press twice to set current reference; 3. Press three times to set power reference; 4. In reference setting state, press confirm.

3.3 User Setting List

Communication Settings

Scope	Name	Description	Default
Communication	Baud Rate	Baud rate setting	9600 bps
	CRC Alignment	Sending mode of CRC 16-bit check data	Little Endian
	Modbus Address	Modbus protocol address	0x01

Function Settings

Scope	Name	Description	Default
	Startup Mode	The device is in local/remote control mode after power on	Local
Function	Rise Time Of Voltage	Rise Time Of Voltage Setting	30 mS
	Fall Time Of Voltage	Fall Time Of Voltage Setting	0 mS
	Rise Time Of Current	Rise Time Of Current Setting	30 mS
	Fall Time Of Current	Fall Time Of Current Setting	0 mS
	Auto-Reco(Fault)	After fault occurs, disable output and check if output will be automatically restored after specified time.	30 S, Close
	Auto-output(Hold)	After power-on, whether to automatically start output after specified time. Reference time: Use clock or power-on time. Time range Enable: Enables/disables time range. On/Off time: set time range.	30 S, Close
	Timing output		Disable
Parallel/Series Connection	Type of connection: independent, parallel or series. Master/slave: master or slave. Control mode: Disable, local or remote control.	Independent
Dry Contact output	Relationship: logic related to fault, startup, condition setting, or time setting. Signal delay: delay from dry contact action after logic is triggered.	Disable

Protection Settings

Scope	Name	Description	Default
Protection	Dry Contact Input	Relationship: Disabled; Fault; Start or buzzer	Disable
	Over-Volt Value	Over-Voltage Protection Value	105% V_Rated
	Time of Duration	Trigger over-voltage protection time	1000 mS
	Over-Curr Value	Over-Current Protection Value	105% I_Rated
	Time of Duration	Trigger over-current protection time	500 mS
	Level1 Overload Value	Level1 overload protection value	105% P_Rated
	Time of Duration	Trigger Level1 overload protection time	10000 mS
	Level2 Overload Value	Level2 overload protection value	110% P_Rated
	Time of Duration	Trigger Level2 overload protection time	5000 mS
	Level3 Overload Value	Level3 overload protection value	120% P_Rated
	Time of Duration	Trigger Level3 overload protection time	1000 mS
	Under-Volt Protection	Under-voltage protection switch	Disable
	Protection Value	Under-voltage protection value	10% V_Rated
	Protection Delay	Under-voltage protection detection delay	1000 mS
	Time Of Duration	Trigger under-voltage protection time	1500 mS
Under-Curr Protection	Under-current protection switch	Disable
Protection Value	Under- current protection value	10% I_Rated
Protection Delay	Under- current protection detection delay	1000 mS
Time Of Duration	Trigger under- current protection time	1500 mS
Short-Circuit Protection	Short-circuit protection switch	Disable
Protection Value	Short-circuit protection voltage value	5% V_Rated
Protection Delay	Short-circuit protection detection delay	10 mS
Time Of Duration	Trigger Short-circuit protection time	20 mS
Protection Switchs	Relevant protection switchs	---
Password	Password	User Default Settings	---
Reset	Factory Reset	Restoring factory Settings (except for information records)	---
	Error Log reset	Clears fault Records	---
	System Data Reset	Clears UI or all system setting	---
	User Data Reset	Clears selected data	---

3.4 Warning List

Name	Attribute	Description	Troubleshooting
Write EEPROM Err	Unrecoverable error	Write EEPROM Error	Power off, Restart.
Read EEPROM Err	Unrecoverable error	Read EEPROM Error	Power off, Restart.
Write FLASH Err		Write FLASH Error	Power off, Restart.
Read FLASH Err		Read FLASH Error	Power off, Restart.
Diff Speci Err		Different from Master specifications	Power off, Restart.
External Error		A fault was detected through dry contact input	Check whether dry contact signal input is normal and exclude alarm signal.
Driver Protect		Driver circuit error	Power off, Restart.
HW Over-Volt P		The hardware over-voltage circuit detects an over-voltage error	Confirm start overshoot or steady overshoot (overshoot in working process). If start overshoot, set "priority" to "current priority", or "Rise Time Of Volt" to a reasonable value (voltage priority). If steady state overshoot and voltage is not more than 1.3 times rated voltage, turn off hardware overvoltage protection. If voltage exceeds 1.3 times rated voltage, install an anti-reverse diode on the output side.
HW Over-Curr P		The hardware over-current circuit detects an over-current Error	Confirm start overshoot or steady overshoot (overshoot in working process). If start overshoot, set "priority" to "voltage priority", or "Rise Time Of Volt" to a reasonable value (voltage priority). If steady-state overshoot occurs, disable hardware overcurrent Protection.
Over-Volt P		The software detects an over-voltage error	Confirm start overshoot or steady overshoot (overshoot in working process). If start overshoot, set "priority" to "voltage priority", or "Rise Time" to a reasonable value. If overshoot is steady state, "over-current protection value" or "overcurrent duration" can be increased.
Over-Curr P		The software detects an over-current error	Confirm start overshoot or steady overshoot (overshoot in working process). If start overshoot, set "priority" to "voltage priority", or "Rise Time Of Curr" to a reasonable value (current priority). For steady overshoot, "overcurrent protection value" or "overcurrent duration" can be raised.
Under-Volt P		The software detects an under-voltage error	Check if the error is reasonable. If not, reset under-voltage protection parameters.
Under-Curr P		The software detects an under-current error	Check if the error is reasonable. If not, reset under-current protection parameters.
Short-Circuit P		The software detects an short-circuit error	Check if short-circuit protection occurs. If it occurs, rectify the error. Otherwise, reset short-circuit protection parameters.
Over-Load P		The software detects an overload error	Eliminate overload error or adjust overload protection parameters.
Over Temperature		The software detects an over-Temperature error	Check whether the power supply air duct is blocked.
Error Resume	Automatic error recovery is enabled, recoverable errors are detected, and recovery attempts fail for 10 times	After confirming the cause of the error and troubleshooting, restart the machine. The error alarm can be cleared by pressing the "EXIT" key on the main UI.
key is locked	Key locked	Press the "LOCK" key to unlock it.
Return to HOME	Operation method in the home	Return to the main UI and operate.
Close Output	Method of operation in closed output state	Operation after closing output.
RemoteCntr:Com ms	Operate keys in remote mode	Press "L/R" to switch back to local control.
RemoteCntr:Analog Switching Prior
Please Later!	Warning	The priority cannot be switched again during priority switching	Wait 1 second and switch the priority again.
Step Mode Is En	Cannot enable other mode in step mode	Operation after Turn off Step mode.
Chg Mode Is En	Cannot enable other mode in charge mode	Turn off charging mode before operation.
Func Mode Is En	Cannot Enable other mode In function generator mode	Turn off function generator before operation.
Exit Setting	Illegal operation	Operation after exiting the Settings.
Invalid Operate		The save and call functions are unavailable in the current UI	Perform operations on the correct UI.
Value Exceeds		The input value exceeds the legal range	Input valid value.
Value Too Small		The input value cannot be '0'	Input valid value.
Not Be Set To '0'
Passward Error		Incorrect password input	Input the correct password, if you forget the password, call OWON.
Unset Volt Ref		The output cannot be open without setting the voltage reference	Set the voltage reference and start the output.
Unset Curr Ref		The output cannot be open without setting the current reference	Set the current reference and start the output.
Unset Power Ref		The output cannot be open without setting the power reference	Set the power reference and start the output.
Illegal Data		Saving a data group is invalid	Save the data group after setting it correctly.
Full Data Space		128 data groups are full	Delete redundant data groups and save them.
No Dada		The precall data group is empty	Call data after saving the corresponding data group.
AddrRange:1~247	Communication error	Invalid address	Input valid address.
Func Code Err		Invalid function code	Operate according to the communication protocol;
RegisterAddrErr		Invalid register address	Operate according to the communication protocol;
Data Range Err		Illegal data	Operate according to the communication protocol;
Local Mode Err		The device is in local control mode	Switch to remote mode.

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