ENGLISH
24
3.
PROBLEM SOLVING
Before starting to look for faults
due to the wiring
it is necessary to disconnect the power supply to the pump (take the plug
out of the socket).
Below is a list of possible problems:
Problem
Problem description
Possible solution
Power led off
No power supply
Check power supply wiring
Check for short circuits due to incorrect
wiring
Error Insufficient supply voltage
Board power supply voltage not sufficient
Check for overloads due to incorrect wiring
of sensors, inputs and outputs
Pressure sensor error
Pressure sensor out of range
Check that the pressure sensor connection
is correct (PR1 connector)
Green pressure sensor led not active
Although the pressure sensor is connected,
the led does not work
Make sure the pressure sensor is enabled
(proceed via APP)
Modbus communication not working
Modbus communication not working
If Modbus LED is GREEN:
1)
Check that Modbus is enabled,
via APP (Modbus Mode
parameter = enabled)
2)
Check that Modbus parameters
are correct (Baud rate, parity, stop
bits, ID), via APP
3)
Check RS485 wiring
If Modbus LED is RED:
1)
Make sure that wireless
communication between
pump/group and ESY I/O is
active.
