5 Installation at Site
38 of 132
Amacan P
Position Sensor
Standard
Optional
1
Leakage inside the motor (connection and winding
space)
✘
-
2
Bearing temperature (upper bearing)
-
✘
3
Bearing temperature (lower bearings)
✘
-
4
Mechanical seal leakage
✘
-
5
Vibration sensor
-
✘
6
Motor temperature (PTC)
✘
-
7
Motor temperature (Pt100)
-
✘
5.4.1.5.1 Motor temperature
DANGER
Insufficient cooling conditions
Explosion hazard!
Winding damage!
▷
Never operate a pump set without operational temperature monitoring.
▷
For explosion-proof pump sets use a thermistor tripping unit with manual reset
and ATEX approval for monitoring the temperature of explosion-proof motors
in "flameproof enclosure" Ex d type of protection.
Three series-connected PTC thermistors at terminals 10 and 11 monitor the winding
temperature. Use a thermistor tripping unit with manual reset. For explosion-proof
pump sets use a thermistor tripping unit with manual reset which is ATEX-approved
for monitoring the temperature of explosion-proof motors in "flameproof
enclosure" Ex d type of protection.
Pt100 resistance thermometer
As an option, in addition to the above, the motor can be fitted with Pt100 resistance
thermometers in the winding. These can be used to display the motor temperature
(sensor circuit maximum 6 V/2 mA).
CAUTION
Temperature monitoring devices not properly connected
Winding damage!
▷
Never use the resistance thermometers as the only means of monitoring the
motor temperature.
