– Set [1-90] Motor Thermal Protection to Thermistor Trip [2]
– Set [1-93] Thermistor Source to Analog Input 54 [2]. Do not use Analog Input 54
as any other feedback or reference source. Be sure to configure the analog
input configuration switches properly.
Figure 5: ON/OFF with an analog input and 10 V as a power supply
NOTE: Check that the chosen supply voltage follows the specifications of the thermistor
element.
Summary
Input
Digital/analog
Supply Voltage V
Cut-out Values
Threshold
Cut-out Values
Digital 24 < 6.6kΩ — > 10.8kΩ
Digital 10 < 800kΩ — > 2.7kΩ
Analog 10 < 3.0kΩ — > 3.0kΩ
With the Torque limit feature, the motor is protected from being overloaded independent
of the speed. With the ETR, the motor is protected from being overheated and there is no
need for any further motor protection. That means when the motor is heated up the ETR
timer controls how long the motor can be operated at the high temperature before it is
stopped to prevent overheating. If the motor is overloaded without reaching the
3 Product Description
Aquavar
®
Intelligent Pump Controller - 150 HP to 600 HP INSTRUCTION MANUAL 15
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