Isotech PEGASUS PLUS 1200 B, Handbook

Page: 32 / 50

PEGASUS
PLUS
1200
HANDBOOK
ISSUE 5 - 01/05
Page 32 of 50
Protocol
The instruments use the "Eurotherm EI BiSynch Protocol"
If required, e.g. for writing custom software the technical details are available from our website
at, www.isotech.co.uk/refer.html
Diagnostic alarms
These indicate that a fault exists in either the controller, indicator or the connected sensor.
Controller Error Messages
The instruments include powerful diagnostics and in the unlikely event of an internal failure,
or a sensor error, one of the following error messages may be displayed.
Display
shows
What it means What to do about it
EE.Er Electrically Erasable Memory Error:
The value of an operator or configuration
parameter has been corrupted
For Controller: Contact Isotech
For Indicator: Check Config Against
Data in Appendix
S.br Sensor Break:
Input sensor is unreliable or the input
signal is out of range.
For Controller: Contact Isotech
For Indicator: Check a sensor is
connected.
Check that only a PRT or a TC is
Connected (Not both)
HW.Er Hardware error :
Indication that a module is of the wrong
type, missing or faulty
Contact Isotech
LLLL Out of Display range, low reading For Controller: Contact Isotech
For Indicator: Check Sensor and
Connections
HHHH Out of Display range, high reading For Controller: Contact Isotech
For Indicator: Check Sensor and
Connections
Err1 Error 1: ROM self-test fail Consult Isotech
Err2 Error 2: RAM self-test fail Consult Isotech
Err3 Error 3: Watchdog fail Consult Isotech