ABB RELION REX640 User Manual

5.13 Committing settings
Editable values are stored either in RAM or a nonvolatile flash memory. The values
stored in the flash memory are in effect also after a reboot.
Some parameters have an edit-copy. If writing is cancelled, the values with an edit-
copy are immediately restored to the original value. The values without an edit-copy,
such as string values, are restored to the original value only after a reboot even
though the edited value is not stored in the flash memory.
1. After editing parameter values, click Write to Relay to put the values into the
protection relay's database for use. The values are not stored to the flash
memory.
Figure 66: Writing values to the protection relay
1MRS759118 D
Using Web HMI
REX640
Operation Manual
75

ABB RELION REX640 Specifications

General

Model	RELION REX640
Category	Protection Device
Communication Protocols	IEC 61850, Modbus, DNP3, IEC 60870-5-103
Display	LCD
Rated Voltage	100-240 V AC/DC
Rated Frequency	50/60 Hz
Protection Functions	Overcurrent, Earth Fault, Overvoltage, Undervoltage, Frequency
Mounting	Rack mounting
Inputs/Outputs	Analog inputs
Housing	Metal
Input Voltage	24-250 V DC / 100-240 V AC
Operating Temperature	-25°C to +70°C
Enclosure	IP20