North America • Latin America • India • Europe / Middle East / Africa • China • Pacific Rim
armstrong
international.com
Designs, materials, weights and performance ratings are approximate and subject to change without notice. Visit
armstrong
international.com for up-to-date information.
34
Problem
Probable Cause
Correction
Water Pressure Fault
Flow control valve restricted
Open flow control valve.
Shut-off valve defective
Repair or replace valve.
Restriction in inlet line
Check filters and piping for obstructions.
Low system pressure
Correct system pressure.
Press "FAULT RESET" on HMI.
VFD Fault
VFD for Transfer pump has Faulted
Reference Fault Code to Allen Bradley Power Flex 520 Series Manual
The following PLC inputs and outputs are shown to facilitate more advanced troubleshooting.
PLC I/Os