Plug Connection - Wilo Yonos MAXO-D Installation And Operating Instructions Manual

English
• In order to ensure drip protection, including strain relief, cables with a sufficient outer
diameter (see Table 7.2) must be used and the threaded cable connection must be
screwed sufficiently tightly. In addition, the cables near the screwed connection are to be
bent to form a drainage loop, to drain any accumulated drips.
• Earth the pump/unit according to regulations.
• L, N,
the mains connection between the 2 phases of a three-phase network grounded at the
star point is possible with a delta voltage of 3~230 V
• SSM: An integrated collective fault signal is applied at the SSM terminals as potential-free
normally closed contact. Contact load:
• Minimum permissible: 12 V DC, 10 mA
• Maximum permissible: 250 V AC, 1 A
DANGER! Risk of fatal accident!
Improper connection of the collective fault signal (SSM) contact poses a risk of fatal
injury due to electric shock.
When connecting the collective fault signal (SSM) to the mains potential, the phase to
be connected and phase L1 on the mains connection cable of the pump must be identical.
• Switching frequency:
• On/off switching operations via mains voltage  100/24 h
•  20/h for a switching frequency of 1 min. between switching on/off via mains voltage.

7.2.1 Plug connection

CAUTION! Risk of damage to property!
Improperly connecting the plug can lead to contact problems and electrical damage.
• The plug must be screwed into its end position via the fastening screw so that the
module and plug surface are flush.
• To avoid damage due to water ingress in the electronics, the sealing elements must
not be pressed out of the unused threaded cable connections.
For the electrical connection, the plug must be disconnected from the control module (fig. 4a).
• Loosen the fastening screw of the plug using a Torx or slotted screwdriver (fig. 4a,
item 1). The plug moves itself out of its holding position. Carefully pull out the plug.
• Screw off both threaded cable connections (fig. 4b) and carefully remove the top part
of the plug.
• Press the sealing elements of the threaded cable connection out using a screwdriver
(fig. 4c, item 1).
NOTE: A sealing element which has been removed by mistake must be pressed back into
the threaded cable connection!
• Prepare a cable (provided on-site) for the mains and SSM connection in acc. with fig. 4c.
• Establish the mains and, if applicable, SSM connection according to the terminal desig-
nations and place the cable in the bottom section of the plug (fig. 4d).
• Engage the top section of the plug, hinge bars first, into the hinge openings of the bot-
tom section and fold shut (fig. 4e). Screw on threaded cable connections.
• Place the plug at the plug-in position of the control module and screw on using a Torx
or slotted screwdriver (fig. 4f, item 2). The plug is joined in its end position as it is
screwed into place.
NOTE: The module and plug surfaces must be flush.
The maximum contact load is achieved when the plug is in its end position.
12
: mains connection voltage: 1~230 V , 50/60 Hz, DIN IEC 60038, alternatively,
AC
, 50/60 Hz.
AC
WILO SE 03/2015