ITech IT8700 Series User Manual

Operations introduction
Copyright © Itech Electronic Co., Ltd. 51
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3. Press + to enter configuration menu
Sync On Set
Von
Measure Rate
4. Press to select <Von>, press to enter. First set <Von point>,
press key to enter, input the programmed value, such as 1V, press
key to confirm
Von point
Von Latch
Exit
5. Press to select <Von Latch>, press key to enter, select
Latch to enable on/off state, such as On, press key to confirm
6. Press key to exit
7. Open the load’s input
When in remote control mode （USB / RS232 / Ether-net）， you can send SCPI
command VOLT:ON <n> to set Von value; send VOLT:LATch ON to enable Von
LATCH function.
4.11 Protection functions
Load has the following protection functions: over voltage protection（OVP）,over
current protection（OCP）, over power protection(OPP), over temperature
protection(OTP), reverse voltage alarm (LRV/RRV）.
The mainframe will act appropriately once any of the above protection is active.
You can press any button on front panel to restore the protection function. For
example, the electronic load come into over temperature protection, the buzzer
will alarm, the input will automatically shut down and Main frame VFD will
display OTP.
4.11.1 Over voltage protection (OVP)
If the OVP circuit has triggered, buzzer alarm, the main frame screen will
displays (OVP), the condition will remain until they are reset.
Operations to clear the OVP state:
Check whether the input voltage is in the load’s rated voltage or the
programmed protecting voltage ranges. If it is outside of the range, please
disconnect the instrument under test. Press any key on the front panel (or send
commandPROTection:CLEar), the (OVP) displayed on the front panel will
disappear, load exits OVP protection state.
4.11.2 Over current protection (OCP)
The electronic load includes both hardware and software over current
protection features.
⚫ Hardware OVP: load’s maximum input current will be limited at about 110%
of the current range, once the hardware OCP is triggered, the status
register’s OC bit will be set; when the hardware OCP is removed, the
status register’s OC bit will be reset. Hardware over current protection
won’t affect load’s on/off state.
⚫ Software OCP: users can set load’s software OCP value, steps: +
ShiftShift
55
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EnterEnter
EnterEnter
EnterEnter
▼▼
EnterEnter
EnterEnter
EscEsc
ShiftShift

ITech IT8700 Series Specifications

General

Model	IT8700 Series
Display	LCD
Operating Temperature	0°C to 40°C
Storage Temperature	-20°C to 70°C
Operating Modes	CC, CV
Communication Interface	RS232/USB/LAN/GPIB(optional)
Protections	OVP, OCP, OTP
Channels	Single
Resolution	1mV

Summary

Safety Precautions

General Operating Safety

Essential safety measures to observe during instrument operation.

Compliance Standards

Chapter 1: Inspection and Installation

Module Installation Procedure

Connecting the Power Cord

Connecting the Device Under Test (DUT)

How to connect the DUT using local and remote sensing.

Chapter 2: Quick Start Guide

IT8700 Series Introduction

Front Panel Interface

Description of the VFD display, mainframe, and module panels.

Rear Panel and System Self-Test

Chapter 3: Panel Operation and Controls

Mainframe Panel Operation

How to operate the mainframe using its front panel keys.

Mainframe Keyboard Functions

Menu Navigation and Configuration

Overview of menu options for configuring working modes and parameters.

Module Panel Operations

Description of front panel controls for single and dual-channel modules.

External Triggering

Chapter 4: Operations and Modes

Local vs. Remote Operation Modes

PC Control Connection Setup

Operating Modes

Detailed explanation of CC, CR, CV, and CW operating modes.

Advanced Operation Modes

Explanation of compound modes and setting operational modes.

Transient Operation

Description and setup of continuous, pulsed, and toggled transient operations.

List and Trigger Operations

How to set up list mode and configure triggered operations.

Protection and Data Management

Details on protection functions and saving/recalling settings.

Automatic Test Function Setup

Chapter 5: Product Specifications

Main Technical Parameters

Detailed technical specifications for various IT8700 models.

Chapter 6: Remote Operation Interfaces

RS232 Interface Configuration

How to connect and communicate using the RS232 interface.

Ether Net Interface Configuration

USB Interface Configuration