Grundfos Conex DIA-1 Instrucciones De Instalación Y Funcionamiento página 50

11.10.3 Manual operation with configured three-position step controller
"Man"
controller
stop
Fig. 40 Manual operation with configured three-position step controller
With configured three-position step controllers, the
final control element (for example the servo motor of
a dosing pump) can be manually opened or closed
and can be set to STOP.
manual operation
controller
stop
• Having switched to manual operation, the
message "controller stop" is displayed for five
seconds.
– All configured controllers are switched off.
– The actuating variable keeps its current
position, i.e. the final control element (motor) is
not closed. It is simply stopped at its last
position (motor stop).
manual operation
0.01
mg/l
5.20 pH
22 °C
– The controller control display is shown at the
right margin of the display, beneath the first
line (manual operation): the control fields 1 and
2 for relay 1 and 2 (plus, if applicable, ">" for
external setpoint").
50
manual
3-pos.ctrl.
operation
1 2
c
c
motor
– Since switching to manual operation will cause
all controllers to be switched off, none of the
control fields is filled (there are no areas
displayed inversely).
3-pos.ctrl.
motor stop
1. On pressing [OK], the message "motor stop" is
shown.
2. Depending on the operating needs, start the
motor by pressing the [Up] button or stop the
motor by pressing the [Down] button.
3. Depending on the choice, either relay 1 (motor
"open") or relay 2 (motor "closed") will be
activated as long as the respective [Up] and
[Down] buttons are pressed.
4. On releasing the [Up] and [Down] buttons, the
motor will stop at its last position ("motor stop"),
i.e. none of the two relays will be activated.
5. Press [OK] to return to the controller control
display.
– The control fields for the two relays remain
empty, since no relay is activated (motor stop).
open
close
stop