Thermo Scientific DensityPRO NAI Series, User Manual

Page: 59 / 196

Operation
Mode/Fault Alarm Setup
Thermo Scientific DensityPRO User Manual 4-7
Mode/Fault
Alarm Setup
The purpose of the mode/fault alarms is to detect change in the alarm status and drive
the selected current or relay outputs based on the alarm action setup.
There are six Mode/Fault Alarm tabs.
Note: The Mode/Fault Alarm Setup screens are organized slightly differently
within the gauge. System and application alarm information are often together
on the same display screen. Reviewing the complete Mode/Fault Alarm Setup
map will aid in navigation of the keypad display.
– The System tab, shown in Figure 4-6 , allows the user to configure system-wide
alarms.
– The System Status tab, shown in Figure 4-7 , displays the alarms from the System
screen and shows whether or not the alarms are currently in an active state.
– The Application tabs (#1 - #4), shown in Figure 4-8 , allow the user to configure
application-specific alarms.
Alarms have three operational modes.
– Disable – The alarm is disabled, and no alarm action is executed.
– Enable – The alarm is enabled. The selected alarm action is executed based on the
alarm set condition.
– Inhibit – The alarm is temporary disabled. Another operation may change the
mode of this alarm from Inhibit to Enable.
After selecting an operational mode, the user may select an output source for the alarm
action. The actions available are:
– Do Nothing (Do not take any actions)
– Relay Output A
– Relay Output B
– Current Output A
– Current Output B
– Current Output C
Once an output source has been selected, an alarm action can be selected on either the
Current Output or Relay Outputs screens. For further information on these screens,
see these respective sections.