Operation Manual 37107F
MFR 3 - Multi Function Relay
Page 122/165
© Woodward
Pt100 Input ([T4] to [T7])
The Pt100 temperature input is designed for temperatures up to 240 °C. A name may be assigned to each Pt100
input. Each input is displayed with its name, and can be monitored in two stages. The first stage initiates a class 1
alarm, and the second stage initiates a class 3 alarm.
Parameter
207
Temperature x
Pt100 ON
[x = 4 to 7]
Analog input, Pt100
ON/OFF
ON
................ The value of this analog input is displayed and monitoring is enabled.
The subsequent screens of this function are displayed.
OFF
.............. Monitoring is not performed. The analog input value and the subse-
quent screens of this function are not displayed.
Parameter
208
***Name****
-----------000°C
Analog input, Pt100: name
user defined
A user-defined name up to 11 characters may be assigned to the analog input. If an
alarm condition is detected, the name and temperature threshold value are dis-
played with an exclamation mark.
Parameter
209
Limit
warning 000°C
Analog input, Pt100: warning (limit 1)
0 to 255 °C
The limit value at which a warning occurs is configured here.
Tripping of class F1 alarm
Parameter
210
Limit
shutdown 000°C
Analog input, Pt100: shutdown (limit 2)
0 to 255 °C
The limit value at which a shutdown occurs is configured here.
Tripping of class F3 alarm
Parameter
211
Delay
limit 1/2 000s
Analog input, Pt100: delay (limit 1 + 2)
0 to 600 s
The analog input monitoring threshold limit must be exceeded, without interrup-
tion, for the time period configured here before an alarm is issued (this delay time
applies to both limit values).
Parameter
212
Monitoring for
----------------
Analog input, Pt100: monitoring for
high limit mon./low limit mon.
The analog input is monitored in different manners:
high limit mon.
.... The value must exceed the configured limit.
low limit mon.
...... The value must fall below the configured limit.
NOTE
If limit value monitoring is not required, a limit value which is higher than the expected level must be
configured in the corresponding screen (e. g. for the ambient temperature: 100 °C).
