General Operating Notes - gefran 1200 Instructions For Use Manual

Switching on and using the Controller
Self-diagnostics
Normal Working - Level 1
399
PV
400
Errors while working
To solve the problem, refer to the paragraph: Troubleshooting Guide in Section 6 Maintenance
81801G_MHW_1200-1300_07-2011_ENG

General Operating Notes

• Immediately after switching on the controller carries out a self-diagnostic test.
During the test, all the display segments and the 7 indicator lights will flash.
• If the self-diagnostics procedure does not detect any errors the controller enters
the normal working status (Level 1)
• Any errors found by the self-diagnostics are memorized in a record and can be
displayed with the
ERR function in the INF menu
PV Displays the value of the Process Variable.
SV Displays the Setpoint value or the Control Output value if in the Manual
working mode.
• By pressing briefly it is possible to see in sequence on the PV display
(and if necessary edit) the significant values that condition the way the
controller works in Level 1 (Setpoint, Alarm threshold, Control Output, etc.)
SV
• Keeping pressed down for 3 seconds we enter the
Programming/Configuration menu - see Navigation in the Controller Menus for
further details.
• By pressing it is possible to increase/decrease the Setpoint value,
until the required value is reached.
In the event of errors during normal working:
PV Displays the error identification.
SV Continues to display the Setpoint or Control Output value.
process variable< min. scale limit (param. LOS in the INP menu)
LO
process variable> max. scale limit (param. K ' S in the INP menu)
HI
broken probe or input values higher than maximum limits
SBR
third wire broken for PT100,PTC or input values lower than minimum
ERR
limits (e.g. for TC with wrong connection)
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