S.p.A.
ITEM TE550
Instruction manual
87/92
CHAPTER 15 -
LIST OF TE550 MESSAGES
15.1 -
SYSTEM ERRORS
MESSAGE
NUM
CAUSE REMEDY
ERROR RELE1 OPEN
ERROR RELE1 OPEN
1
An error occurred in the electronic
component that activates the outputs.
The state of relay 1 is off, therefore
faulty. This is why the outputs cannot
be enabled.
Contact service center.
ERROR RELE1 CLOSED
ERROR RELE1 CLOSED
2
An error occurred in the electronic
component that activates the outputs.
The state of relay 1 is on, therefore
faulty. This is why the outputs cannot
be enabled.
Contact service center.
ERROR RELE2 OPEN
ERROR RELE2 OPEN
3
An error occurred in the electronic
component that activates the outputs.
The state of relay 2 is off, therefore
faulty. This is why the outputs cannot
be enabled.
Contact service center.
ERROR RELE2 CLOSED
ERROR RELE2 CLOSED
4
An error occurred in the electronic
component that activates the outputs.
The state of relay 2 is on, therefore
faulty. This is why the outputs cannot
be enabled.
Contact service center.
BOTH INSIDE RELAYS
ARE FAULTY
5
Errors occurred in both electronic
components that activate the outputs.
This is why the outputs cannot be
enabled.
Contact service center.
CRC INSIDE MEMORY
CRC INSIDE MEMORY
6
An integrity error occurred in the data
stored in the control unit's EPROM.
This ensued from the checksum
calculation on the data in this memory.
Contact service center.
FAULT/MISSING
MAINS SYNCHRONISM
7
A “synchronism” error occurred due to
the temporary omission of the power
line reference signal or to line
interference.
Clear the error and check
the working efficiency of the
devices that cutoff the
power line and check for
any interference.
SUPPLY FREQUENCY
OUT OF LIMITS 50-60
8
The control unit did not succeed in
measuring a steady mains frequency
between 50 and 60 Hz.
Try to turn on the control
unit again and check that
power supply is 24 VAC
with a frequency of 50 or 60
Hz.
OUTPUT VALVES
IN SHORT CIRCUIT
9
One of the outputs of the solenoid
valves is short circuited.
Check the electrical
connections of the control
unit. Check the solenoid
valve coils.