Wilo Stratos MAXO Serie Instrucciones De Instalación Y Funcionamiento página 143

Installation and operating instructions Wilo-Stratos MAXO/-D/-Z
Electrical connection
Fig. 32: Communication interfaces
All communication interfaces in the terminal room (analogue inputs, digital inputs, 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 connections in the terminal room.
Make sure to install cable ducts correctly and ensure separation in the terminal room to
maintain SELV conformity for all other cables.
Cable requirements
Terminals are intended for rigid and flexible conductors with or without ferrules.
Connection Terminal cross-sec-
tion
in mm
Min.
3x1.5
Mains plug
2x0.2
SSM
2x0.2
SBM
2x0.2
Digital input 1 (DI1)
2x0.2
Digital input 2 (DI2)
1x0.2
+24 V output
2x0.2
Analogue input 1 (AI1)
2x0.2
Analogue input 2 (AI2)
3x0.2
Wilo Net
Table 12: Cable requirements
*
Cable length ≥ 2 m: Use shielded cables.
**
When using ferrules, the maximum cross-section for communication interfaces is re-
duced to 1 mm². All combinations up to 2.5 mm² are permissible in the Wilo-Connector.
Terminal assignment
Name Assignment
+ 24 V (terminal: 11)
Analogue IN (AI 1) + In 1 → (terminal: 13)
- GND I (terminal: 12)
+ In 2 → (terminal: 23)
- GND I (terminal: 22)
Analogue IN (AI 2)
Terminal cross-sec-
tion
2 2
in mm
Max.
3x2.5
2x1.5 (1.0**)
2x1.5 (1.0**)
2x1.5 (1.0**)
2x1.5 (1.0**)
1x1.5 (1.0**)
2x1.5 (1.0**)
2x1.5 (1.0**)
3x1.5 (1.0**)
Notice
Type of signal:
• 0 – 10 V
• 2 – 10 V
• 0 – 20 mA
• 4 – 20 mA
PT1000
Electric strength:
30 V DC / 24 V AC
en
Cable
*
*
*
*
*
*
*
Shielded
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