Emerson 7003M - Manual (Page 42)

Operator Manual
748223-K
June 2002
3-16 Operation Rosemount Analytical Inc. A Division of Emerson Process Management
Model 7003M
3-6 ALARM MODE VS. ON/OFF-CONTROL
MODE
Refer to Figure 3-5 on page 3-17 and Table
3-17 below. From the ALARM or ON/OFF-
Control Mode, the operator can:
• Set alarm ON and OFF setpoints.
• Select alarm or ON/OFF-Control function
for relays
• Disable alarm(s)
KEY DISPLAY WHAT HAPPENS
DISPLAY Nothing Nothing
ACK "dIS" Disables alarms
ALARM 1 "C-1" / "A-1" Toggles between alarm and controller mode
ALARM 2 "C-2" / "A-2" Toggles between alarm and controller mode
UP ARROW 10.8 →10.9 Changes alarm setpoint
DOWN ARROW 10.9 →10.8 Changes alarm setpoint
CAL Nothing Nothing
ENTER "OFF" / "run" Moves to the "OFF" setpoint step or goes back to RUN mode
Table 3-17. ALARM Mode Key Functions
a. Relay Configured as Alarm
Relays are configured as alarms (ALARM
Mode) when immediate operator action is
required.
When alarms are selected, "A-1" and "A-
2" are displayed in the ALARM mode set-
up procedure.
When an alarm condition occurs, the
caret blinks, the relay activates, and the
display flashes. Press the ACK key to
acknowledge the alarm, de-energize the
relay coil and stop the alarm actions.
b. Relay Configured as ON/OFF-
Controller
Relays are configured as ON/OFF-
Controllers (ON/OFF-Controller mode)
when a non-critical, non-hazardous
automated action is desired, or when it is
important that the relay output not be
bypassed by the operator.
When ON/OFF-Controllers are selected,
"C-1" and/or "C-2" is displayed in the
ALARM mode set-up procedure.
When an ON/OFF-Controller alarm
condition occurs, Alarm 1 or 2 caret blinks
and the relay coil is energized. However,
the display does not flash, and the ACK
key is inactive. Alarm conditions are
automatically reset when the sensor
indicates that an alarm condition no
longer exists.