Grundfos PHP A-1 4.0 User Manual

PHP A-1 Instruction Manual / Warnings and fault messages
No Message Description Check/Repair
Necessary device options
for this message
E6
E6: too man’:1 PumP
re-=uests Per Period
If the lower working pressure
falls below a set value a
pump request occurs and a
pump starts. The quantity of
pump requests per interval
is monitored. By exceeding
of the upper limit this
message appears. Pumps
disabled.
- check if a permanent
decrease of plant pressure
occurs
- check valve pump is
defective
- configuration of the upper
working pressure has been
changed without using the
pressure settings function
(insufficient working
pressure difference)
no (contained in every
configuration
E7
E7: write error I2C basic
circuit board
The internal communication
at the I2C-bus on the basic
circuit board failed
- confirm message. If the
message appears anew
the basic circuit board
obviously is defective
no (contained in every
configuration)
E8
E8: temPerat.sensor
Tl short circuit
The resistance of the sensor
is too low and falls below
the valid range.
- sensor connection shows
a short circuit or
is damaged
- sensor element is defective
no (contained in every
configuration)
E9
E9: temPerat.sensor
Tl break
The resistance of the sensor
is too high and exceeds the
valid range.
- incorrect connection of
the sensor at the control
electronics
- sensor connection is
broken or damaged
- sensor element defective
no (contained in every
configuration)
E10
El0: transmitter Pl
meas.signa1 too high
Measurement signal of
pressure transmitter P1
(plant pressure) is above the
normal valid range.
- connection of pressure
transmitter P1 is incorrect
or damaged
- pressure transmitter is
defective
- measure input of basic
circuit board is defective
no (contained in every
configuration)
E11
Ell: transmitter Pl
meas.signa1 too 1ow
Measurement signal of
pressure transmitter P1
(plant pressure) is below the
normal valid range.
- pressure transmitter P1 is
disconnected
- connection of pressure
transmitter is incorrect or
damaged
- pressure transmitter is
defective
- measure input of basic
circuit board is defective
no (contained in every
configuration)
37

Grundfos PHP A-1 4.0 Specifications

General

Brand	Grundfos
Model	PHP A-1 4.0
Category	Water Pump
Language	English