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KSB Calio User Manual

KSB Calio
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5 Installation at Site
31 of 68
Calio
1157.821/04-EN
5.6.1.7 Connecting dual-pump configurations
Wire the two pumps to each other with a suitable network cable (wave impedance
120Ω), via the terminal pairs DUAL (a5).
Setting
Make sure the settings and wiring of both pumps are identical to ensure that the
changeover from duty pump to stand-by pump will not have any impact on the duty
point and operating mode. Connect the control modules of the two pumps with a
commercial, shielded data cable. The terminals of the RUN terminal pair must be
bridged at both pumps.
COMRUN
DUAL0-10 V
L
Vin
0 V
R
1
2
D-
D+
H
0 V
0 V
0 V
a1
a2
a3
a4
a5
Fig.16: Terminal wiring diagram for dual-pump configuration
a Data line connections
a1 External 0-10V
a2 External start/stop
a3 Terminating resistor for Modbus cable (DIP switches)
a4 Modbus
a5 Dual-pump configuration

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KSB Calio Specifications

General IconGeneral
Max Operating Pressure10 bar
Connection SizeDN 32
MaterialStainless steel
Applicationsheating, cooling, industrial processes
Connection TypeFlanged
Power Supply1~230 V, 50/60 Hz / 3~400 V, 50/60 Hz

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