Wilo Stratos MAXO-D Instrucciones De Instalación Y Funcionamiento página 16

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▪ Start-up current peaks of up to 10 A can occur every time the
power supply is switched on irrespective of the pump's rated cur-
rent consumption!
▪ Consider switching frequency:
- Switch-on/off via mains voltage ≤ 100/24 h
- Increased number of switch-ons/switch-offs ≤ 20/h (≤ 480/24 h)
permissible on use of:
– Digital input with EXT. OFF function
– Analog setpoint specification with switch-off function
– Switching signals via communication interfaces (e.g. CIF module,
Wilo Net or Bluetooth)
▪ We recommend that the pump is secured using a residual-current
device (Type B in accordance with EN 60335).
▪ Leakage current I
≤ 3.5 mA
eff
▪ Create the electrical connection via a fixed connection pipe with a
plug-in device or an all-pole switch with at least 3 mm contact
opening width (VDE 0700/Part 1).
▪ Use a connection pipe of sufficient outer diameter to protect
against leakage water and to provide strain relief at the threaded
cable gland ➜ Fig. 16. Bend the cable to form a drain loop in the
vicinity of the screwed connection to dissipate any drips.
▪ If fluid temperatures are above 194 °F (90 °C), use a heat-resistant
connection pipe.
▪ Lay the connection pipe in such a way that it does not touch the
pipes or pump.
Terminals are provided for rigid and flexible conductors with wire
end ferrules.
16
Connection
Cable cross-
section
Min.
3x16 AWG
Mains plug
2x24 AWG
SSM (FAULT)
2x24 AWG
SBM (RUN)
Digital input 1
2x24 AWG
(DI1)
Digital input 2
2x24 AWG
(DI2)
1x24 AWG
24 V output
Analog input 1
2x24 AWG
(AI1)
Analog input 2
2x24 AWG
(AI2)
3x24 AWG
Wilo Net
Table 5: Cable requirements
*
Cable length ≥ 6½ ft (2 m): Use shielded cables.
**
If using wire end ferrules, the maximum cross-section at commu-
nication interfaces reduces to 17 AWG. All combinations up to
14 AWG are permissible in the Wilo-Connector.
Cable cross-
Cable
section
Max.
3x14 AWG
*
2x16 AWG
**
(17 AWG
)
*
2x16 AWG
**
(17 AWG
)
*
2x16 AWG
**
(17 AWG
)
*
2x16 AWG
**
(17 AWG
)
*
1x16 AWG
**
(17 AWG
)
*
2x16 AWG
**
(17 AWG
)
*
2x16 AWG
**
(17 AWG
)
3x16 AWG
shielded
**
(17 AWG
)
WILO SE 2019-08

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