Functions; Remote On/Off (Digital Input); External Analog 0 - 10 V Dc Signal - KSB CalioTherm Pro 25 Installation & Operating Manual

Table 23: Pump start and stop
Contact
Contact closed / terminals bridged
Contact open / terminals not bridged
7 Operation

7.3 Functions

7.3.1 Remote ON/OFF (digital input)

CAUTION
External voltage applied to the RUN terminal
Damage to the printed circuit board!
▷ Always use a volt-free contact for the RUN terminal.
CAUTION
Using digital inputs for safety-relevant shutdown
Pump does not stop!
Damage to the electronics!
▷ For safety-related shutdown always separate the unit from the power supply
network (e.g. by installing an Emergency OFF system).
The digital input is factory-set to start up and stop the pump set.
The digital input can also be configured. For the configuration use the
KSB ServiceTool as described in the KSB ServiceTool supplementary operating manual
(reference number 1157.801).
7.3.2 External analog 0 - 10 V DC signal
CAUTION
External voltage applied to the RUN terminal
Damage to the printed circuit board!
▷ Always use a volt-free contact for the RUN terminal.
Function
An external analog 0 - 10 V DC signal serves as setpoint input. If the Constant-
pressure Control, Proportional-pressure Control or Eco Mode operating modes are
active, the pump set processes the current external analog signal as a setpoint. If the
Open-loop Control operating mode is active, the pump set processes the external
analog signal as a speed setpoint. If the signal level < 1.5 V DC, the pump will stop
and the last LED segment will extinguish.
Table 24: Setpoint settings at the pump set for signal level 0 - 10 V
Signal level Setpoint input at the pump set
10 V DC 100 % of the setpoint
2 V DC 0 % of the setpoint
< 1.5 V DC Pump stops.
≥ 2 V DC Pump starts up.
CalioTherm Pro
Response
Pump set starts up.
Pump set stops.
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