Grundfos CIU 501 Installation And Operating Instructions

English (GB)
20
15. Ethernet LED on CIM/CIU 500 (left)
LED status Location Description
Flashing red No connection to GRM.
Flashing green
Startup period of 120 seconds. The CIM
500 initiates communication with GRM.
Permanently green Connection to GRM established.
Flashing green
... ... ... ...
(3-second intervals)
Data transmitting to GRM server.

Grundfos CIU 501 Specifications

General

Type	CIU 501
Enclosure class	IP65
Power supply	24 V DC
Weight	0.5 kg
Communication	Modbus RTU
Storage temperature range	-40°C to +70°C
Relative humidity	5% to 95%
Housing material	Polycarbonate
Protection class	Class II