LH Series -
Quick Start Guide
Configuration

1LH, 3LH, and DX - Signature and Performance Chassis

QUICKSTART LH-DX, Revision 002

Typical Configuration:
Analog Constant Pressure Setup

Setup
Constant Pressure
Yes (Enter)
No  (Home)
  1. "SETUP CONST PRES" - Press the ENTER key to proceed.
  2. "4-20mA psi RANGE" - Set the psi range of the 4-20mA sensor. Default is 150psi. Press ENTER to proceed.
  3. "psi SETPOINT" - Determines the pressure you want to maintain. The factory default is 50 psi. Use the arrow keys to change if desired. Press ENTER to proceed.
  4. "SUBMERSIBLE PUMP" - This parameter sets the ramp profile for a submersible pump. "YES" = ramps to 30HZ in the first second to prevent excessive wear on the thrust bearing. "NO" = The frequency will increase in a linear fashion from zero to max frequency. Use the arrow keys to toggle between the two settings. Press ENTER to proceed.
  5. "Disable Manual Mode" – The "Yes" value allows you to disable the MANUAL button run mode. "No" allows you to run the VFD manually on/off at max frequency.
  6. "OVERCURRENT LIMIT" – Setting for motor overload protection (service factor amp rating for the motor) using the arrows to toggle. Press ENTER to proceed.
  7. Press the RUN/AUTO button to start the pump.
Additional Notes:
  1. Motor rotation must be verified upon completion of setup.
  2. If the VFD is not going to sleep, first check for leaks. If there are no leaks present in the system, you may need to increase the "Shutoff Frequency" within "Constant Pressure Parameters."
  3. Set pressure tank psi to 70% of VFD psi Setpoint.
  4. Any of these settings can be modified if needed after the initial setup completes. For a full listing of available parameters, please refer to the product manual.

Alternative Configuration:
Simple On/Off Setup

Overcurrent
Limit
110.0 Amps
  1. Press the HOME button to bypass Perfect Pressure setup.
  2. Press the ENTER button to enter the main menu.
  3. "Change Parameter Values" – Press ENTER
  4. "Operating Parameters" Press ENTER
  5. Use the down arrow until the screens says "Overcurrent Limit" and press ENTER. Set the motor overload protection (service factor amp rating for the motor) using the arrows to toggle. Press ENTER to proceed.
  6. Press the HOME button at any time to return to the home screen.
  7. Press the RUN/AUTO button to start the pump.
Additional Notes:
  1. Both Aux 1 and Aux 2 must be closed and show "On" for the pump to run.
  2. For a full listing of available Parameters, please refer to the product manual.

Documents

Installation of LH Series Drives

Looking for the Installation Guide for an LH Series VFD? See the Installation Quick Start Guide for LH Series Drives.

Read more

Download
LH Series Manual
phasetechnologies.com/support/lh