ProMinent ProMix Series, Руководство по эксплуатации, Страница: 37 / 68

Pr o Minent ProMix
‘DB' & 'PB’ Polymer Feeder
ProMix Series MA Batch/Inline User Manual
37
2.11 Troubleshooting Guide
Adjustment and bypass fixes to operational problems.
LCD & Browser Status Operational Problem
Auxiliary STOP
If you have a level switch fault, jumper controller input terminal
‘
O
’ to the adjacent Ground symbol,
terminal & fix the level
switch.
No Control STOP
Switch the LOCAL-REMOTE to LOCAL while you figure out the
problem with the 4-20mA current loop connected to controller
input terminals ‘
G
’ ‘+’ & Ground
terminal.
No Water STOP
Motor Overload
If a motor thermal overload problem, jumper controller input
terminal ‘
S
’ to the adjacent Ground symbol
terminal.
Solenoid
Verify that the solenoid has been actuated during the Flow
Check state by cracking a downstream union.
Remove the shock shield from the lower controller circuit board
& check for 120VAC between
Solenoid L & N terminals during
the Flow Check state.
If no AC solenoid power, verify solenoid wiring & coil not
shorted & replace the solenoid fuse.
It’s the brown 1A fuse in the white socket above the blue RUN
light.
www.digikey.com Part# 7500412
Primary Water Meter
Verify 3 wires of mixer inlet meter firmly connected to controller
terminals
+DC Power ,
‘
Q
’ & Ground
terminal.
Pull the meter & spin the rotor for 30-60 seconds & verify that
Primary Flow shows GPM.
There’s no easy way to bypass this meter.
No Ext.Run STOP
If a Remote Start problem, jumper controller input terminal ‘
T
’ to
any adjacent Ground symbol terminal.