User Manual - PolyGard
®
2
Multi-Gas-Controller MGC2-K Honeywell
Page
12
PolyGard
®
is a registered trademark of MSR
GAMGC2-K_E_0320
Phone 0049(0)8531/9004-0
Fax: 0049(0)8531/9004-54
Specification subject to change without notice
MSR-Electronic GmbH, Bgm.-Schoenbauer-Str. 13, D 94060 Pocking www:msr-electronic.de Made in Germany
MP 1 Comm.Error
1 1T 2h 6‘
8.1 Fault Management
A pending fault activates the yellow LED (Fault).
The integrated fault management records the first 50 occurred faults with time
stamps in the menu
“
System Errors
”
. The timestamp shows the days, hours and
minutes that have elapsed since the fault has occurred.
Additionally, a record of the faults occurs in
the “Error memory”
, which can only be read and deleted by the
service technician (code level 1 (3)).
8.1.1 Error Memory
The menu
“
Error Memory
”
in the main menu
“
System Errors
”
can only be opened via the code level priority 1.
In the error memory, the first 50 faults that have occurred and have already been acknowledged in the menu
“Error Status” are listed for the service technician in a power failure safe way.
Attention:
This memory should always be read during maintenance, relevant faults should be tracked and entered
in the service logbook, and finally the memory should be emptied.
8.1.2 System Messages and System Errors
The warning device includes a diagnostic module for the continuous monitoring of the relevant functions and
parameters as well as a processor-independent watchdog. These features set the device into the safe mode
"Fault" in case of an internal or external error. The following table shows all possible errors, possible causes,
the related troubleshooting and the resulting device status.
Once the cause has been eliminated, the warning device restarts wi
th the diagnostic mode on its own. It isn’t
necessary to acknowledge the error message.
In the event of an error, the error is output as plain text in the
version with display instead of the measured value and in the Error status menu. In case of two or more errors,
the value is output with a cumulative, bit-coded error code.
Error Type
Cause
Remedy
Fault
Relay
Analog
Output
Centr.
Bus
Display
Error Code Text Mess.
Error messages from MGC2
DP1-
Sensor element defective
Replace
sensor
Error
< 2 mA
Error
code is
sent
0x8 001 h
Sensor
Temperature < -25 °C > +60 °C
Ambient temp.
Temp.!
Error
< 2 mA
Error
code is
sent
0x8 002 h
Overtemp.
Internal
Replace device
Measured value processing
0x8 002 h
ADC error
RAM / ROM / µC error
0x8 008 h
CPU error
EEPROM error
0x8 010 h
EE error
No response alarm relay
0x8 020 h
I/O error
Deviation of analog output signal
< 5 % >
Short-circuit or
Interruption at the
analog output
Check wiring /
load
Error
X mA
0x8 020 h
I/O error
Internal
Replace device
Communication error to sensor
Sensor head not
fitted correctly
Check
Error
< 2 mA
0x9 000 h
Comm. error
Internal
Replace
Sensor
Hardware Watch Dog triggered
Internal, < system
voltage, µC defect.
Replace device
Error
< 1 mA
Comm.
STOP
Reset
Reset
Operating voltage limits exceeded
too high / too low
External
Check voltage
Error
< 2 mA
Comm.
STOP
0x8 008 h
Tension
Internal
Replace device
Maintenance due
Maintenance date
reached
Perform
maintenance
No effect
0x8 080 h*
Maintenance