Wilo Stratos PARA-C Notice De Montage Et De Mise En Service page 55

• The current type and voltage of the mains connection must correspond to the specifications on the rating
plate!
• Control via triacs/semiconductor relay is not permitted!
• When conducting insulation tests with a high voltage generator, the pump must be disconnected from the
mains at all poles in the system's switch cabinet.
7.2.1 Mains supply
• Only operate the pump with sinusoidal AC voltage, 1~230 V 50/60 Hz, DIN IEC 60038.
• A motor protection switch supplied by the customer is not required.
• If a residual-current device (RCD) is used, it is recommended to use an RCD type A (pulse current sensit-
ive). Check that the rules for the coordination of electrical operating fluid in the electrical installation are
observed and, if necessary, adjust the RCD accordingly.
• When dimensioning the residual-current device, consider the number of pumps connected and their rated
motor currents.
• Observe leakage current I
• If a shutdown is carried out with an on-site power relay, the following minimum requirements must be
met:
–
Rated current ≥ 8 A
–
Rated voltage: 250 V AC
• Observe the switching frequency:
–
Switching on/off via mains voltage ≤ 100/24 h
–
≤ 20/h for a switching frequency of 1 min. between switching on/off via mains voltage
7.2.2 Mains cable
• The mains cable is intended for the power supply of the pump.
• The bare cable end is to be inserted in the system's switchbox. Observe cable assignment!
• Ensure that the connecting cable does not contact either the pipes or the pump.
Cable assignment
Cable
7.2.3 Signal properties
CAUTION
Risk of material damage!
The connection of mains voltage (230 V AC) to the communication pins (PWM) will destroy
the product.
• Exclusively connect the power supply to 230 V (phase to neutral conductor)!
PWM
• Signal frequency: 90 Hz – 5000 Hz (1000 Hz nominal value)
• Signal amplitude: Min. 4 V to 24.5 V (input resistance > 10 kOhm)
• Signal polarity: yes
Installation and operating instructions • Wilo-Stratos PARA-C/-CZ • Ed.01/2023-04
≤ 3.5 mA for each pump.
eff
Pin Cable colour
1 Brown
2 Yellow/green
3 Blue
Assignment
Live wire (L)
Protective earth conductor PE
Neutral conductor (N)
en
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