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8.1.2
Configure analogue input 0-10 V
The analogue input of the module can be adapted for various applications.
Settings are made via the pump operating element. Select menu:
NOTICE
Transfer curves for the 0-10 V signal are described in Section 6.1.
When control via the 0-10 V signal is activated, no setpoint adjustments of the control
mode can be made via the pump's operating button.
0-10V with off
The analogue input controls the pump's setpoint, depending on the set control mode (e.g. Δp-c or Δp-v).
The pump switches off at a voltage of < 1 V.
0-10V no off
The 0-10 V signal is evaluated across the entire voltage range to adjust the setpoint of the set control mode.
2-10V CB detec.
The 0-10 V signal is evaluated as a 2-10 V signal. The analogue input controls the pump's setpoint, depend-
ing on the set control mode (e.g. Δp-c or Δp-v).
Cable break detection is active thanks to this characteristic curve. If the voltage is too low (< 1 V), this is re-
cognised as a cable break. You can set special behaviour for a detected cable break.
10-0V solar
The 0-10 V signal is evaluated as with a pump for solar thermal technology systems. The analogue input
controls the pump's setpoint.
8.1.2.1 Configure cable break reaction
If the analogue input is configured for a 2-10V CB detec., the following settings can be used to select the
reaction to a detected cable break. Select menu:
Installation and operating instructions • Wilo-Connect module BMS • Ed.02/2023-10
WCM BMS
Analogue input
Not used (factory setting)
No 0-10 V signal is evaluated.
The analogue input is not active and does not influence the
pump's function.
The setpoint can still be adjusted via the pump's operating but-
ton.
WCM BMS
2-10V CB detec.
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