7
7. EXTERNAL CONTROL
（
Not included in standard model
）
External control can be enabled via following contacts. Pressing on/off can stop the pump even
if working via an external controller.
a.
Digital Input
：
To enable external speed control, connect one of the digits from Di1/2/3/4
to COM. See schematic as below:
b.
Relay Output:
Connect terminal L & N to enable external control. An additional on-off is
necessary while bearing power is less than 500W (2.5A). See schematic as below:
Control system digital input
Summary of Contents for GFVS19N
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