Wilo Stratos Notice De Montage Et De Mise En Service page 27

7.2.1 Electrical pump connection (fig. 5)
• 230 V~,
Voltage across terminals "230V~" must be total 230 volt
either
• 230 volt "hot" lines and neutral line
or
• two 230 volt "hot" lines.
• FC: A built-in collective fault signal is available on the FC (fault contact)
terminals as a potential-free closed contact.
Permissible contact load:
• minimum: 12 V DC, 10 mA,
• maximum: 250 V AC, 1 A.
Max. tightening torque of the connecting terminal screws (230 V~,
2.2 lb inch
• Two single pumps as double pump: Both motors in the parallel pump
installation are to be provided with a separate mains cable and a separate mains
fuse protection.
NOTE:
built-in double-pump management is deactivated.
• Switching frequency:
• On-/Off switching by mains supply ≤ 20 times / 24 h
• On-/Off switching by Ext. Off or 0...10 V Signal ≤ 20 times/ h
• Assignment of supply terminals: The following table shows the possibilities for
which combinations of circuits the individual cable glands in a cable can be
assigned.
Cable gland ½"
Function Mains cable FC
Cable type 5x14 AWG
Function Mains cable
Cable type 3x14 AWG
3x14 AWG
Function Mains cable
Cable type 3x14 AWG
3x14 AWG
3x14 AWG
Installation and operating instructions Wilo-Stratos
: Mains voltage, single-phase current 1~230 V AC ±10%, 60 Hz
If a single motor in a parallel pump installation is switched off-load, the
Cable gland ¼"
FC
2-core cable
FC / Ext.Off / SBM
or
FC / 0...10 V / Ext.Min
multicore control
cable, number of cores
in acc. with number of
circuits, if nec. shielded
, FC):
Cable gland PG 7
DP-management
2-core cable (l ≤ 2.5 m)
English
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