GE L30 User Manual

GE Multilin L30 Line Current Differential System 3-27
3 HARDWARE 3.2 WIRING
3
Figure 3–24: RTD CONNECTION
3.2.8 RS232 FACEPLATE PORT
A 9-pin RS232C serial port is located on the L30 faceplate for programming with a computer. All that is required to use this
interface is a computer running the EnerVista UR Setup software provided with the relay. Cabling for the RS232 port is
shown in the following figure for both 9-pin and 25-pin connectors.
The baud rate for this port is fixed at 19200 bps.
Figure 3–25: RS232 FACEPLATE PORT CONNECTION
Three-wire shielded cable
RTD terminals
Maximum total lead resistance:
25 ohms for Platinum RTDs
Route cable in separate conduit from
current carrying conductors
RTD
859736A1.CDR
RTD terminals
RTD
RTD
For RTD
RTD
SURGE
~1
~1 &
~2
~2
~8b
~1a
~1b
~2a
Hot
Hot
Return
Comp
Comp
~2c
~1c
NOTE

GE L30 Specifications

General

Brand	GE
Model	L30
Category	Relays
Language	English