VFD
Magnetic Contactors (MC) Durability of Operational Environment Stress Classifications
DURABILITY TO STANDARD: Switching durability(endurance) is classified for the standardization between each manufacturer about contact point by consumption of magnetic contactor, switch when on/off action and on/off durability of device. (1) ...
H100+ High/Low Feedback Detection functionality
Below shows High/ Low Feedback Detection functionality and associated drive parameters. Can be utilized in conjunction of any H100+ output relays to interface with outside world.
Reflective Wave phenomena in VFD applications
Below is common practice when reflective wave phenomena when application of three phase motors are utilized in combination with VFD's (AC Drives). This is not "all-inclusive" summary, but a practical approach with consideration to machine ...
Auto Torque Boost and When to Use It
In V/F operation, this adjusts the output voltage if operation is unavailable due to a low output voltage. It is used when operation is unavailable, due to a lack of starting torque, by providing a voltage boost to the output voltage via the torque ...
LS Electric AC Drive Load Duty Setting Explained
Our LSE AC Drives are Heavy Duty (HD) which is US Constant Torque (CT) rating from factory except; LSE H100 or M100 series drives. Below is simple explanation of differences of drive LOAD DUTY settings as applicable to G100/S100/iS7 AC Drives: ...
H100+ Power On Run (Keypad)
If [AVD-18 KPD Pwr-on Run] is set to Yes, if the operation was performed according to the keypad operation command (HAND key, AUTO key) when the input power was cut off, operation is automatically performed even if there is no keypad operation ...
M100/IS7 Power On Run Command
A power-on command can be setup to start an inverter operation after powering up, based on terminal block operation commands (if they have been configured). To enable power-on run, set the Ad10 code to 1 in the Ad group. This feature is not disabled ...
H100+ Thrust Bearing Control
The thrust bearing function changes the acceleration and deacceleration time based frequency in order to protect the bearings of the submersible pump. To activate this function, find the following parameters.
H100/H100+ Time Event Functions Based on Seasons
It may be necessary to enable certain functions during certain periods of time. These can be accessed on the H100 and H100+ within the AP3 parameter. When the user sets the summer time start date, the current time is subtracted by one hour. ex) ...
Changing Displayed Units Hz to RPM
There are some cases where you may want to change what is displayed as your operational unit on the VFD from Hz to RPM. On the H100, H100+, IS7 and the S100 (Only if have the LCD Keypad) this can be done through drive parameter DRV.21. Noteworthy, ...
Carrier RTU Retrofit Guide
H100+ Multi-Motor Control (MMC)
The H100+ also comes with the ability to control multiple motors at once. Multi-motor control (MMC) gives the user evenly distributed motor use which can extend the lifespan of the product. It also saves energy with constant PID control. The H100+ ...
H100+ Enhanced Hands Off Auto Keypad Functions
H100+ Precautions for 1–phase Input to 3-phase Drive
H100+ New Macros
The H100+ comes with three new macros for users to choose from while operating the VFD. These include the Basic (default), pressure control and lead-lag macros. To set the Macro follow the parameter below: Lead-Lag Macro Also known as the ...
What is a Flying Start?
Input and Output Static Check Procedure for VFDs
iS7s from 11~22kW (200V and 400V) and 30~160kW (400V only) will read open on the DCP side for the S and T phases. There are two types of power circuits to check, SCR and diodes. Diodes are typically found in smaller models while SCR can be found in ...
Speed Potentiometer Resistance
When using a potentiometer with an LS VFD it is important to know the correct resistance that can be applied safely. S100 1–5kΩ H100 1–10k Ω IS7 1 kΩ G100 1/5 kΩ
Read/Write/Save Parameters LSE S100, iS7 and the H100 AC Drives
In order to read, write and save parameters to the S100 (40HP>), iS7 and H100 VFDs the user needs to utilize the CNF protocol. For the S100 drive LED Keypad: DR.85= READ from DRIVE to KEYPAD DR.86= WRITE to DRIVE from KEYPAD
Connecting LS Electric Drives to DriveView 9 Software
DriveView 9 is a PC-based software tool used for remote monitoring, programming, and troubleshooting LS Electric America's drives. There are various connection methods and cables for a direct connection which are dependent on the drive model being ...
H100+ Hard Current Limit Feature - Output Speed Foldback for Variable Torque Applications
The Current Limit function on the H100+ model prevents tripping by reducing the output speed (output speed foldback) as the motor current increases and approaches overload condition. PI control is used to monitor the current level and maintain the ...
H100+ Backspin Timer Feature
The H100+ has a variety of new firmware options including a backspin timer feature. The timer prevents starting for a specified time after stopping or a trip. This prevents pump damage when there is a backspinning condition.
H100+ Differential Level Detection Feature
The H100+ comes with a variety of new firmware options including differential level detection. The software detects the deviation of PID feedback and secondary pressure feedback and operates a digital output/warning/trip accordingly. The difference ...
H100+ Lead Lag Setup
H100+ drives have a built-in, lead-lag function which allows for redundant motor control using multiple drives with multiple pumps. Also known as "master-follower" or "lead-lag loadshare", this works without the use of an externally controller such ...
H100+ No-Flow Control
The H100+ is equipped with a new firmware that includes many new functions including no-flow control (NFC). The feature turns on when the drive detects that the pump is no longer contributing to the overall pressure in the system due to a no-flow ...
Troubleshooting: VFD Not Powering Up
Is your VFD not powering up even with applied input voltage? It may be due to a fault at the charging resistor or SMPS output. The I/O board may also be at fault. First, check to see if the keypad is lit. If it does not then determine if the input ...
Troubleshooting an Over Heat Error on VFD
If you find yourself troubleshooting an over heat error on a VFD there is a process which can help guide you to the solution. First, check the heat sink temperature of the loader and check your trip history. Did a trip occur at 100 degrees Celsius ...
Troubleshooting H/W Diag Fault Error
If your VFD is throwing a H/W Diag fault error there are three main sections to check. You will want to look at the EEP ROM, ADC Offset and the Watchdog. The EEP ROM is associated with memory fault, the ADC is associated with current feedback circuit ...
Troubleshooting NTC Open Fault Code
If your VFD is throwing a NTC Open fault code there are a number of things that might be the issue, In the case of IG5A, check to see if NTC resistance of the PIM is normal. Also make sure to check the IS7 to see if the thermistor resistance is ...
Troubleshooting Fuse Open Fault Code
Is your VFD throwing a Fuse Open fault code? Here's what to do next. Check your fuse, is it normal? If the fuse does not look normal then change the fuse and perform a checkup on the IGBT. Next, check the limit switch or fuse show signs of any ...
LSE AC Drive PID Guide - Spreadsheet
LSE America has created basic PID GUIDE "Cheat Sheet" for any user to utilize and save for their project needs. This PID User Guide includes all current LSE America AC Drive Models; M100, G100, S100, iS7 and H100/ H100+ Series. Our PID GUIDE and ...
Overvoltage Trip on Cyclic Motor Loads
Overview Cyclic loads such as vibratory tables, feeders, vibration conveyors, and screeners can cause a VFD to trip on Overvoltage (OVt on the keypad). This is due to the load being cyclic. At one point the motor will be in a motoring state and ...
Setting up Electronic Thermal Motor Protection (ETH) on a VFD
Electronic Thermal Motor Protection (ETH) is a protective function which protects the motor based on the programmed cooling characteristics of the motor. The VFD can be set to trip at a programmed level to protect the motor. This is primarily based ...
LS Electric AC Drive Digital Inputs at 24vdc
Alternative to a dry contact closure (NPN) for ALL series of LS Electric AC Drives Series, one can employ 24vdc utilizing internal 24vdc power supply or an external 24vdc power supply shown below. he following example with SW1 selected for PNP. ...
DB Resistor Specifications
Attached you will find the recommended DB resistor specs for LS VFDs. Be cautious that the resistor selected is above the minimum ohms on this table to prevent VFD or DBU damage
Connecting and Configuring an LS VFD to Productivity PLCs over Ethernet
Below is the required setup procedure for connecting, controlling, and monitoring an LS VFD to a Productivity 1000 connected via Ethernet TCP/IP. Initial Setup Start by adding a Generic Ethernet/IP device in the "Hardware Config". See below example ...
H100 Underload Detection
Introduction For pumping applications it is important to detect instances where there is a loss of prime in the pump. This is often called dry run , dry well, or low flow. The H100's Under Load protection can be utilized to trip out the VFD and ...
How do I setup my VFD running PID with an HOA switch?
This FAQ contains the necessary parameter settings for using a multi-function (digital) input to switch between PID and a hand reference source. This operation is common to pumping panels utilizing Hand-Off-Auto (HOA) or selector switches. This ...
Pump Down Application for the H100
A "Pump Down" application is a PID loop where the level of a tank or well is being regulated by the VFD. The pump connected to the VFD is pumping down the level. This differs from a pressure loop where the pump is building up pressure. Setup ...
Wiring up an iS7 analog output to a ROC800
This document shows how to properly wire up a 4-20mA output from an iS7 to an Emerson ROC800 PLC with an AI-16 card. The iS7 sources its own power for the AO1 and AO2 signals. Do NOT connect +T to the analog circuit on the iS7. This will results in a ...
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