Wilo Stratos MAXO Notice De Montage Et De Mise En Service page 40

en-US
Fig. 14: Communication interfaces
All communication interfaces in the terminal room (analog inputs, digital inputs, bus Wilo Net, SSM, and SBM)
comply with the SELV standard.
SSM and SBM can also be operated with/at non-SELV compliant connections/voltage ratings (up to
250 V AC) without this negatively influencing the SELV compliance of the remaining communication con-
nections in the terminal room.
Make sure to install cables correctly and ensure separation in the terminal room to maintain SELV conformity
for all other cables.
NOTICE
For cable requirements, see "Requirements [" 30]" section
Terminal assignment
Name
Analog IN (AI 1)
Analog IN (AI 2)
40
Assignment
+ 24 V (terminal: 11)
+ In 1 → (terminal: 13)
- GND I (terminal: 12)
+ In 2 → (terminal: 23)
- GND I (terminal: 22)
Installation and operating instructions • Wilo-Stratos MAXO/-D/-Z • Ed.02/2023-10
Note
Type of signal:
• 0 – 10 V
• 2 – 10 V
• 0 – 20 mA
• 4 – 20 mA
PT1000
Electric strength:
30 V DC / 24 V AC
Power supply:
24 V DC: at maximum 50 mA