Yokogawa Data Acquisition with PID Control CX2000 User Manual
Page 305
10-6
IM 04L31A01-01E
Setup Procedure
• Setting the alarm
1. Use the
arrow keys
to move the cursor (blue) to the [First-CH] and [Last-CH]
boxes.
2. Press the
soft key
corresponding to the start and end channel numbers for
setting the alarm.
3. Use the
arrow keys
to move the cursor (blue) to the Math alarm [1] to [4] boxes.
4. Press the
[On] soft key
corresponding to the alarm you wish to select.
[Type], [Value], and [Relay On/Off] entry boxes appear.
5. Use the
arrow keys
to move the each of the entry boxes and select the alarm
type, alarm value, and relay output On/Off using the
soft keys
.
If [Relay On/Off] is set to [On], the [Number] box appears.
6. If [Relay On/Off] is set to [On], select the relay output number from [I01] to [I06],
[D0001] to [D0006], [D0101] to [D0106], [D0201] to [D0206], [R001] to [R012],
and [SW001] to [SW036] using the
soft keys
.
7. Press the
DISP/ENTER key
.
• Setting the alarm delay
1. Use the
arrow keys
to move the cursor (blue) to the [First-CH] and [Last-CH]
boxes.
2. Press the
soft key
corresponding to the start and end channel numbers for
setting the alarm.
3. Use the
arrow keys
to move the cursor (blue) to the [Time] box under Alarm
delay.
4. Press the
[Input] soft key
and set the alarm delay time on the pop-up window.
5. Press the
DISP/ENTER key
.
Setup Items
Math alarm
• Off/On
Four alarms (alarm numbers 1 to 4) can be specified for the selected alarm channel.
Set the desired alarm to [On].
• Type
Select the alarm type from the following four types.
H (High limit alarm):
An alarm occurs when the measured/computed value
exceeds the alarm value.
L (Lower limit alarm):
An alarm occurs when the measured/computed value falls
below the alarm value.
T (Delay high limit alarm): An alarm occurs when the computed value remains above
or equal to the alarm value for the specified delay.
t (Delay low limit alarm):
An alarm occurs when the computed value remains below
or equal to the alarm value for the specified delay.
• Value
Set the value according to the [Type] you selected above. The selectable range is the
range defined by [Span Upper/Lower] that was specified in “Assigning Computation
Channels” (see the previous section).
• Relay On/Off
Select whether to enable [On] or disable [Off] the relay output.
10.3 Setting Computation Channel Alarms