Analogue Input (Ai1) Or (Ai2) - Purple Terminal - Wilo Stratos MAXO Notice De Montage

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6.5 Analogue input (AI1) or (AI2) –
purple terminal
144
Electrical connection
Name Assignment
DI 1 → (terminal: 33)
Digital IN (DI 1)
+ 24 V (terminal: 31)
DI 2 → (terminal: 43)
+ 24 V (terminal: 41)
Digital IN (DI 2)
↔ H (terminal: 51)
Net ↔ L (terminal: 53)
GND H/L (terminal: 52)
COM (terminal: 75)
← FAULT (terminal: 78)
← OK (terminal: 76)
SSM
COM (terminal: 85)
← RUN (terminal: 88)
SBM
Table 13: Terminal assignment
Fig. 33: Analogue In
Analogue signal sources connected to terminals 12 and 13 for use with AI1 and con-
nected to terminals 22 and 23 for use with AI2
Note correct polarity for signals 0 – 10 V, 2 – 10 V, 0 – 20 mA and 4 – 20 mA.
Use the pump to supply 24 V DC to an active sensor. For this purpose, pick off the
voltage at +24 V (11) and GND I (12) terminals.
The analogue inputs can be used for the following functions:
▪ External setpoint specification
▪ Sensor connection:
– Temperature sensor
– Differential pressure sensor
– PID sensor
Analogue input for following signals:
▪ 0 – 10 V
▪ 2 – 10 V
▪ 0 – 20 mA
▪ 4 – 20 mA
▪ PT1000
Technical data:
▪ Analogue input load (0) 4 – 20 mA: ≤ 300 Ω
Notice
Power supply:
24 V DC: at maximum 50 mA
Digital inputs for potential-free
contacts:
• Maximum voltage:
< 30 V DC / 24 V AC
• Maximum loop current: < 5 mA
• Operating voltage: 24 V DC
• Operating loop current: 2 mA
per input
Potential-free changeover con-
tact
Contact load:
• Permitted minimum: SELV
12 V AC / DC, 10 mA
• Permitted maximum: 250 V AC,
1 A, AC 1 / 30 V DC, 1 A
Potential-free normally open
contact
Contact load:
• Permitted minimum: SELV
12 V AC / DC, 10 mA
• Permitted maximum: 250 V AC,
1 A, AC 1 / 30 V DC, 1 A
WILO SE 2018-11