Signal Relays - Grundfos CMBE Instrucciones De Instalación Y Operación

Terminal
NC
C1
NO
NC
C2
NO
10
4
With standard product delivery,
analog inputs 1 and 2 are used
by the sensor.
2
5
6
A
Y
B
3
15
8
26
23
25
24
7
With standard product delivery,
analog inputs 1 and 2 are used
by the sensor.

6.3.2 Signal relays

The motor has two outputs for potential-free signals via two internal
relays. You can set the signal outputs to Operation, Pump
running, Ready, Alarm and Warning.
Grundfos Eye is off
The power is off.
Operation Pump running
C NO NC C NO NC
Grundfos Eye is rotating green
The pump or motor runs in Normal mode in open or closed loop.
10
Type Function
Normally closed contact
Common Signal relay 1. LIVE or PELV.
Normally open contact
Normally closed contact
Common Signal relay 2. PELV only.
Normally open contact
Digital input/output, configurable.
DI3/OC1
Open collector: Maximum 24 V resistive or inductive.
Analog input:
AI1 0-20 mA or 4-20 mA
0.5-3.5 V, 0-5 V or 0-10 V.
Digital input, configurable.
DI1
+5 V Power supply to a potentiometer or sensor.
GND Ground.
GENIbus, A GENIbus, A (+).
GENIbus, Y GENIbus, Y (GND).
GENIbus, B GENIbus, B (-).
GND Ground.
+24 V Power supply.
+24 V Power supply.
+5 V Power supply to potentiometer and sensor.
GND Ground.
GDS TX Grundfos Digital Sensor output.
GDS RX Grundfos Digital Sensor input.
Analog input:
AI2 0-20 mA or 4-20 mA.
0.5 - 3.5 V, 0-5 V or 0-10 V.
Ready
C NO NC
Digital input 1 is factory-set to be start or stop input where an open circuit
results in stop. A jumper has been factory-fitted between terminals 2 and
6. Remove the jumper if digital input 1 is to be used as external start or
stop or any other external function.
The functions of the two signal relays appear from the table below:
Alarm Warning
C NO NC C NO
Operating mode
-
NC