Description And Function; Description Of The Pump - Wilo Yonos PICO-STG Instrucciones De Instalación Y Funcionamiento

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5.4
Accessories
Accessories must be ordered separately. For a detailed list and
description, see the catalogue/price list.
The following accessories are available:
• PWM signal cable, length 2 m with connection plug
• Thermal insulation shell

6 Description and function

6.1

Description of the pump

The pump (Fig. 1) consists of a hydraulic system, a glandless
pump motor with a permanent magnet rotor, and an electronic
control module with an integrated frequency converter. The
control module contains both an operating knob for setting the
control mode and the setpoint and a speed control, which can
be carried out via an external PWM signal of a controller. The
pump is equipped with an LED ring to show the operating status
of the pump (see chapter 10).
6.2
Functions
All functions can be set, activated or deactivated using the
operating knob or via an external PWM signal.
Settings:
Variable differential pressure (Δp-v)
The differential-pressure setpoint H is increased linearly over
the permitted volume flow range between ½H and H (Fig. 3a).
The differential pressure generated by the pump is adjusted to
the corresponding differential-pressure setpoint.
Constant rotation speed
The pump runs constantly at a pre-set fixed speed (Fig. 3b).
Installation and operating instructions Wilo-Yonos PICO STG
English
27

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