Connection Options; Collective Fault Signal (Ssm); Connect - Wilo Yonos MAXO-Z Instrucciones De Instalación Y Funcionamiento

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▪ During external connection of the pump deactivate a pulse of the
voltage (for example phase angle control).
▪ Switching the pump via triacs/solid-state relays must be examined
on a case-by-case basis.
▪ During deactivation with on-site power relay: Rated current ≥ 10 A,
rated voltage 250 V AC
▪ Note switching frequency:
– Switch-on/off procedures via mains voltage ≤ 100/24 h
– ≤ 20/h for a switching frequency of 1 min. between switching on/
off via mains voltage
▪ Secure pump with a residual-current device (type A or B).
▪ Leakage current I ≤ 3.5 mA
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▪ The electrical connection must be made via a fixed connecting
cable equipped with a connector device or an all-pole switch with a
contact opening width of at least 3 mm (VDE 0700/Part 1).
▪ To protect against leakage and for strain relief of the threaded
cable connection use a connection pipe with sufficient outer dia-
meter ➜ Fig. 15.
▪ Lay the connection pipe in such a way that it touches neither the
pipes nor the pump.
6.3

Connection options

➜ Fig. 12
20
NOTICE
3~ 400 V without neutral conductor N: Upstream
power transformer.
6.4

Collective fault signal (SSM)

The contact of the collective fault signal (potential-free normally
closed contact) can be connected to a building automation system.
Internal contact is closed in the following cases:
▪ The pump has zero current.
▪ There is no fault.
▪ The control module has failed.
DANGER
Electric shock!
Danger to life through voltage transmission, if mains
and SSM pipe are led together through a 5-wire
cable.
▪ Do not connect SSM pipe to protective low voltage.
▪ Use 5 x 1.5 mm² cable.
During connection of the SSM pipe to the network potential:
▪ SSM phase = live wire L1
6.5

Connect

➜ Fig. 13 to 19
WILO SE 2017-03