Grundfos CRE Series - Page 23

Terminal Type Function
5V +5 V Power supply to a potentiometer or sensor
GND GND Signal ground
TX GDS TX Grundfos Digital Sensor output
RX GDS RX Grundfos Digital Sensor input
GND GND Signal ground
DI4 DI4/OC2
Digital input/output, configurable
Open collector: Maximum 24 V resistive or inductive
PT2 Pt100/1000 input 2 Pt100/1000 sensor input 2
PT1 Pt100/1000 input 1 Pt100/1000 sensor input 1
LT1 LiqTec sensor input 1
LiqTec sensor input 1
White conductor
GND GND
Signal ground
Brown and black conductors
LT2 LiqTec sensor input 2
LiqTec sensor input 2
Blue conductor
5V +5 V Power supply to a potentiometer or sensor
A GENIbus, A GENIbus, A (+) / Modbus, D1 (+)
Y GENIbus, Y GENIbus, GND / Modbus, GND
B GENIbus, B GENIbus, B (-) / Modbus, D0 (-)
AI1 AI1
Analog input:
• 0-20 mA or 4-20 mA
• 0.5 - 3.5 V, 0-5 V or 0-10 V.
DI1 DI1
Digital input, configurable
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 DI1 and GND. Remove
the jumper if digital input 1 is to be used as
external start or stop or any other external
function.
24V +24 V Power supply
GND GND Signal ground
AO1 AO
Analog output:
• 0-20 mA or 4-20 mA
• 0-10 V.
GND GND Signal ground
AI3 AI3
Analog input:
• 0-20 mA or 4-20 mA
• 0.5 - 3.5 V, 0-5 V or 0-10 V.
DI2 DI2 Digital input, configurable
23
English (GB)