GE 239

GE Multilin 239 Motor Protection Relay 6-1
6 239PC SOFTWARE 6 239PC SOFTWARE
6
239 INSTRUCTION MANUAL 6 239PC SOFTWARE 6.1 OVERVIEW
Although setpoints can be entered manually using the front panel keys, it is much easier to use a
computer to download values through the communications port. A free program called 239PC is
available from Multilin to make this as convenient as possible. With 239PC running on your personal
computer under Windows it is possible to:
• Program/modify setpoints
• Load/save setpoint files from/to disk
• Read actual values
• Monitor status
• Plot/print trends
• Read pre-trip data and trip record
• Get help on any topic
• Print the instruction manual from disk
The 239PC software allows immediate access to all the features of the 239 with easy to use pull
down menus in the familiar Windows environment.
The 239PC software can run without a 239 connected to a computer and save settings to a file. If a
239 is connected to a serial port on a computer and communications is enabled, the 239 can be pro-
grammed from the
Setpoint screens. In addition, measured values, status and trip messages can be
displayed with the
Actual screens.
6.2 HARDWARE CONFIGURATION
The 239 communications is setup as shown in the figure below.
Figure 6–1: TYPICAL COMMUNICATIONS SETUP
819807A4.CDR
239 RELAY SETUP PROGRAM
File
Setpoints
Actual
Diagnosis
Comms
Help
LAST
T
RIP
D
ATA
Phase A
Cause
Phase B
Phase C
Ground
Unbalance
100 A
Overload
30 A
50 A
10.5 A
30 %
TEMPERATURE
RTD
1T
ype
RTD
1T
emperature
RTD
2T
ype
RTD
2T
emperature
RTD
3Type
RTD
3T
emperature
Degrees
Stator
95 C
Bearing
75 C
Bearing
73 C
Celsius
TRIP RECORD
2nd Last Trip
3rdLastTrip
4th Last Trip
5th Last Trip
TRIP INFORMATION
Overload
None
None
None
CLEAR
OK
Cancel
CLEAR
MOTOR: RUNNING
STATUS: OK
MODE:
N
ORMAL
COMMUNICAL:
O
N
+
R
S
4
8
5
R
S
2
32
-
P
O
W
E
R
239 RELAY
MULTILIN
RS232/RS485
CONVERTOR
COMPUTER
POWER SUPPLY
MODULE TO
WALL PLUG
RS232 CONNECTOR TO
COMPUTER COM PORT
TYPICALLY COM1 OR COM2