Rockwell Automation 900-TC32 Digital Temperature Controllers, Series B - Manual (Page 115)

Publication 900-UM007D-EN-E - January 2011
Configuration & Basic Operation 3-45
1. Press the
O
key for at least 3 seconds to move from the Operation to
the Initial Setting function group.
Figure 3.87
2. Select the Alarm 1 Type parameter by pressing the
M key. Check that
the Alarm Type parameter is set to 2. Note: The default is Upper-Limit
alarm.
Figure 3.88
3. To return to the Operation function group press the
O
key for at least
1 second.
Figure 3.89
4. Select Alarm Value 1 by pressing
M.
Figure 3.90
5. Press the
U key to configure the parameter to 10. This value is loaded
into memory by waiting 2 seconds or pressing the
M key.
Figure 3.91
PV Change Rate Alarm The change width (rate of change) for PV input values can be found in any
time period. Differences with previous values in each set period are calculated,
then an alarm is output if the result exceeds the alarm value. The PV rate of
change calculation period can be configured in units of 250 ms.
If a positive value is configured for the alarm value, the PV will operate as a
change rate alarm in the rising direction. If a negative value is configured, the
PV will operate as a change rate alarm in the falling direction.
in-t
5
Input type
alt1
2
Alarm 1 type
C 25
100
PV/SP
C al-1
0
Alarm value 1
C al-1
10