installation &
operating instructions
ips 4000 controller - Integrated pumping
system for variable primary applications
12
3.2.1 alarms
Alarm Description Possible causes
Pump n alarm Indicates that pump n is in alarm Any pump alarm will trigger this alarm
Pump n run feedback alarm
Indicates that the plc didn’t detect the pump
run feedback after commanding the pump to
start
• vfd not configured for serial communication
• Loose or broken wire from vfd
• Incorrect vfd type selected on ips
• Impeller is stuck
Pump n no flow alarm
Indicates that the plc didn’t detect flow (dp
switch not closed) after commanding the
pump to start
• dp switch not correctly adjusted
• Loose or broken wire
• Damaged plc digital input
• Impeller is stuck
Pump n drive fault alarm Indicates that the pump vfd is reporting a fault vfd over current or other problem. Check vfd local display
dp transmitter fail alarm Indicates that the dp transmitter is out of range
• Connection to transmitter is short or open circuited
• Damaged plc analog input
• Loose or broken wire from transmitter
• Damaged transmitter
Flow transmitter fail alarm
Indicates that the flow transmitter is out
of range
• Connection to transmitter is short or open circuited
• Damaged plc analog input
• Loose or broken wire from transmitter
• Damaged transmitter
Zone n transmitter alarm
Indicates that the zone transmitter is out
of range
• Connection to transmitter is short or open circuited
• Damaged plc analog input
• Loose or broken wire from transmitter
• Damaged transmitter
All zones transmitter alarm
Indicates that all zones transmitters are out
of range
All zone sensors are in alarm
Pump n flow deviation alarm
Indicates that the sensorless flow of the pump
is 20% o the average of the running pumps
• There is a problem with the sensorless mapping of
the vfd
• Air in the system
• A manual valve is obstructing the flow
Chiller/boiler flow below
minimum alarm
Indicates system flow is less than chiller/boiler
total minimum set value
• Incorrect calibration of flow meter
• Bypass valve not open
• Flow obstruction in the pipe
Chiller/boiler flow above
maximum alarm
Indicates system flow is greater than chiller/
boiler total maximum set value
• Incorrect calibration of flow meter
• Bypass valve not close
• Incorrect design sensorless data
To Next Page
Loading...
