English
6.2.3 Control inputs on DigiCon-A
Control contact "off"
potential-free normally open
contact
Fig. 2, item 10
Control contact "max."
potential-free normally open
contact
Fig. 2, item 11
Control contact "min"
potential-free normally open
contact
Fig. 2, item 12
Control contact "on"
potential-free normally open
contact
Fig. 2, item 13
Analogue input "0-10V",
Fig. 2, item 18
Tab. 7
CAUTION!
No external voltage may be applied to the control inputs.
30
DigiCon-A
Contact open:
• Operation of pump is not affected.
Contact closed:
• Pump stationary.
Contact open:
• Operation of the pump is not affected.
Contact closed:
• Pump runs at max. speed.
Contact open:
• Operation of pump is not affected.
Contact closed:
• Pump running a reduced night mode speed.
Contact open:
• Operation of pump is not affected.
Contact closed:
• Pump runs in pre-selected control mode and at
pre-selected setpoint.
The signal at the analogue input "0-10V" specifies
the setpoint for the control mode set with the
"mode" rotary switch (Fig. 3):
• Δp-c: 0V = H
, 10V = H
min
• Δp-v: 0V = H
, 10V = H
min
• n-c: 0V = min. speed, 10V = max. speed
• The signal at the analogue input "0-10V" over-
rides the value set at the "setpoint" knob and the
setpoint transmitted via the RS 485 bus.
max
max
WILO SE 04/2009