gefran ADV200 WA, Functions Description And Parameters List

Page: 155 / 300

ADV200 WA • Functions description and parameters list
155
26.7 – PROCESS/FILL
The purpose of the filling function is to avoid water hammering when a system is filled too quickly.
Different methods must be used to fill the horizontal and vertical pipes: in horizontal pipes the pressure does not in-
crease during filling, whereas in vertical pipes it increases as the water level rises.
It is a good idea, when filling horizontal pipes, to maintain a constant rpm for a previously set time, whereas vertical
pipes should be filled according to a pressure ramp with previously defined slope to reach a set pressure. For mixed
pipes use a combination of the two methods.
Controlled filling is performed in two stages:
Stage 1 (horizontal pipes): The pump runs at
Fill speed
for
Fill speed time
. This stage cannot be performed if
Fill
speed time
= 0 (which is the default setting).
Stage 2 (vertical pipes): this stage is enabled after stage 1. The pressure reference is increased up to the value of Fill
setpoint in Fill speed time . When the reference applied reaches the setpoint, the system enters normal operating
mode with the PID controlling the main reference. This stage may be skipped by setting Fill setpoint = 0 (which is the
default setting) and moving directly to normal PID control.
The “Fill” function is performed each time the system is started.
Menu PAR Description UM Typo FB BIT Def Min Max Acc Mod
26.7.1 7470 Fill enable ENUM Disable 0 1 RW VS
Enabling of the fill function.
0 Disable
1 Enable
Set to 0 to disable the fill function.
Set to 1 to enable the fill function.
Menu PAR Description UM Typo FB BIT Def Min Max Acc Mod
26.7.2 7472 Fill speed rpm INT16 0 0 CALCI RW VS
Setting of the pump speed during horizontal pipe fill.