Wilo Stratos MAXO Notice De Montage Et De Mise En Service page 42

en-US
The analog inputs can be used for the following functions:
• External setpoint specification
• Sensor connection:
–
Temperature sensor
–
Differential pressure sensor
–
PID sensor
Analog input for following signals:
• 0 – 10 V
• 2 – 10 V
• 0 – 20 mA
• 4 – 20 mA
• PT1000
Technical data:
• Load analog input (0)4 – 20 mA: ≤ 300 Ω
• Load resistance at 0 – 10 V, 2 – 10 V: ≥ 10 kΩ
• Dielectric strength: 30 V DC / 24 V AC
• Terminal for supplying active sensors with 24 V DC – maximum power load: 50 mA
NOTICE
For additional information, see section "Application and function of the analog inputs AI1
and AI2 [" 104]"
CAUTION
Overload or short-circuit
In case of overload or short-circuit of the 24 V connection, all input functions will fail (analog
inputs and digital inputs).
The input functions will be available again when the overload or short-circuit situation is re-
solved.
CAUTION
Overvoltages destroy the electronics
Analog and digital inputs are protected for overvoltages up to 30 V DC / 24 V AC. Higher
overvoltages destroy the electronics.
42 Installation and operating instructions • Wilo-Stratos MAXO/-D/-Z • Ed.02/2023-10