Grundfos Hydro Multi-E Series User Manual

English (GB)
37
18. Signal relays
The motor has two outputs for potential-free signals via two
internal relays.
The signal outputs can be set to "Operation", "Running", "Ready",
"Alarm" and "Warning".
The functions of the two signal relays appear from the table
below:
Description Grundfos Eye
Contact position for signal relays when activated
Operating
mode
Operation Running Ready Alarm Warning
Power off.
Off
-
Pump running in "Normal"
mode.
Green, rotating
Normal, Min.
or Max.
Pump running in "Manual"
mode.
Green, rotating
Manual
Pump in operating mode
"Stop".
Green, steady
Stop
Warning, but the pump is
running.
Yellow, rotating
Normal, Min.
or Max.
Warning, but the pump is
running in "Manual" mode.
Yellow, rotating
Manual
Warning, but the pump
was stopped via the "Stop"
command.
Yellow, steady
Stop
Alarm, but the pump is
running.
Red, rotating
Normal, Min.
or Max.
Alarm, but the pump is
running in "Manual" mode.
Red, rotating
Manual
Pump stopped due to an
alarm.
Red, flashing
"Stop"
NCNO
C
NCNO
C
NCNO
C
NCNO
C
NCNO
C
C
NO NC
C
NO NC
C
NO NC
NCNO
C
NCNO
C
C
NO NC
C
NO NC
NCNO
C
NCNO
C
NCNO
C
NCNO
C
NCNO
C
C
NO NC
NCNO
C
NCNO
C
C
NO NC
C
NO NC
C
NO NC
NCNO
C
C
NO NC
C
NO NC
C
NO NC
NCNO
C
NCNO
C
C
NO NC
NCNO
C
NCNO
C
C
NO NC
NCNO
C
C
NO NC
C
NO NC
C
NO NC
NCNO
C
C
NO NC
NCNO
C
C
NO NC
C
NO NC
NCNO
C
C
NO NC
NCNO
C
NCNO
C
NCNO
C
NCNO
C
C
NO NC
NCNO
C

Grundfos Hydro Multi-E Series Specifications

General

Control Type	Variable Speed
Motor Efficiency	IE3
Controller	CU 352
Enclosure Class	IP54
Series	Hydro Multi-E
Frequency	50/60 Hz
Protection Class	IP54
Weight	Varies by model
Communication	Modbus
Application	Water Supply, Pressure Boosting
Liquid Temperature	0°C to +60°C
Material	Stainless Steel