Wilo Stratos MAXO Notice De Montage Et De Mise En Service page 45

both sides. For optimum transmission, the data cable pair (H and L) must be twisted at Wilo Net and have a
characteristic impedance of 120 ohms. Cable length maximum 656 ft.
NOTICE
For additional information, see section "Application and function of the Wilo Net interface
[" 121]".
7.9 Collective fault signal (SSM) – red terminal block
An integrated collective fault signal is available at the SSM (FAULT) terminal as a potential-free changeover
contact.
Contact load:
• Minimum permissible: SELV 12 V AC / DC, 10 mA
• Maximum permissible: 250 V AC, 1 A, AC1 / 30 V DC, 1 A
NOTICE
For additional information, see "Application and function of SSM relay [" 97]" section.
7.10 Collective run signal (SBM) – orange terminal block
An integrated collective run signal is available at the SBM (RUN) terminals as a potential-free normally open
contact.
Contact load:
• Minimum permissible: SELV 12 V AC / DC, 10 mA
• Maximum permissible: 250 V AC, 1 A, AC1 / 30 V DC, 1 A
NOTICE
For additional information, see "Application and function of SBM relay [" 98]" section.
7.11 CIF module
DANGER
Risk of fatal injury from electric shock!
Immediate danger of death if live components are touched!
• Check whether all connections are voltage-free!
CIF modules (accessories) are used for communication between pumps and building management systems.
CIF modules are attached in the electronic module.
• For twin-head pumps, only the main pump must be equipped with a CIF module.
• For pumps in Y-pipe applications in which the electronic modules are connected to each other through the
Wilo Net, only the main pump also requires a CIF module.
Installation and operating instructions • Wilo-Stratos MAXO/-D/-Z • Ed.02/2023-10
en-US
45