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9.4.6 Restarting
Set whether restarting after tripping is to be
• Automatic (factory setting)
• Manual.
For setting of time, see section 9.4.7.
9.4.7 Automatic restarting
Set the time after which the MP 204 is to attempt
automatic restarting of motor after cut-out.
The time runs from the moment when the value
which triggered the fault has returned to normal.
Factory setting:
•300 s.
9.4.8 Tempcon sensor
Set whether a Tempcon sensor is incorporated in the
motor.
• Enable
• Disable (factory setting).
If the Tempcon sensor is set to active and no Temp-
con signal is received from the pump, the MP 204
display shows "----" instead of Tempcon temperature.
Note: The overvoltage and undervoltage trip limits
will be deactivated automatically if the temperature
monitoring with Tempcon has been set to active.
9.4.9 Pt sensor
Set whether a Pt sensor is connected.
• Enable
• Disable (factory setting).
If the Pt sensor is set to active and no signal is
received from the sensor, the MP 204 display shows
"----" instead of Pt temperature.
Note: The overvoltage and undervoltage trip limits
will be deactivated automatically if the temperature
monitoring with Pt100/Pt1000 has been set to active.
Note: The learning function registers automatically
whether a Pt100/Pt1000 sensor is connected.
9.4.10 Insulation resistance measurement
Set whether insulation resistance measurement is to
be made.
• Enable
• Disable (factory setting).
If three-phase, earthed mains is selected
(see section 9.4.1), this setting is automatically
changed to "Enable".
If single-phase mains is selected (see section 9.4.1),
this setting is automatically changed to "Disable".
Note:
• The insulation resistance can only be measured if
terminal "FE" is earthed and the supply mains is
set to "3 phases w. FE".
• The leakage is measured when the MP 204 is
powered and the motor stopped.
• The MP 204 must be connected in front of the
contactor, and terminal "5" after the contactor.
See figs. 8 and 9.
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