Hmi Error Displays - ABB ProKiln GAC400 Operating Instruction

74 ProKiln GAC400 PROBE GAS SAMPLING SYSTEM | OI/GAC400-EN REV. A
... 10 Diagnosis / error messages

HMI error displays

The HMI on the front of the control cabinet displays error status.
All error messages do not appear directly on the HMI's Home
menu but are rather shown on the Alarm and Maintenance
Request menus. An Alarm Active list is also available. Errors are
stored in the Alarm history.
An indication at the top right corner as a push button is always
shown in all menus, so that the user can quickly access the
Maintenance Request (yellow) or Alarm menus (red).
The illustration above shows the Menu page with error indication
at the top right corner (in this example there are no active
alarms, therefore the system is in normal state.
Example 1: Alarm menu
This example shows the Alarm menu. In this example there is an
indication of a Red Alarm and a Yellow Maintenance Request at
the top right corner of the HMI. It can also be seen that the Alarm
originates from a F12 Flow "FALL" (Flow Alarm Low-Low) as
indicated with a red marker. See the complete alarm list below
for further examples.
In general, the following approach is used:
H: high limit alarm
HH: too high limit alarm (high-high)
L: low limit alarm
LL: too low limit alarm (low-low)