GE Power Management 750/760 Feeder Management Relay 4-
1
4 750/760 PC PROGRAM 4.1 OVERVIEW
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4 750/760 PC PROGRAM 4.1 OVERVIEW 4.1.1 DESCRIPTION
The 750/760PC PROGRAM may be used for training or testing purposes from any computer running Microsoft
Windows 3.1/95/98. Setpoints may be edited and printed, actual values may be read, and relay operation may
be simulated. The 750/760 PC Program, provided with every 750/760 relay, allows easy access to all relay set-
points and actual values via a personal computer running Windows® 3.1/3.11, Windows® 95/98, Windows®
NT or higher and one of the PC’s RS232 ports – COM1 or COM2. The user can:
• Program/modify setpoints
• Load/save setpoint files from/to disk
• Read actual values
• Monitor status
• Plot/print/view trending graphs of selected actual values
• Perform waveform capture (oscillography)
• Download and “playback” waveforms (Simulation Mode)
• View the Event Recorder
• Get help on any topic
The 750/760 PC Program can be used “stand-alone”, without an 750/760 relay, to create or edit 750/760 set-
point files.
4.1.2 HARDWARE AND SOFTWARE REQUIREMENTS
The configuration listed is for both a minimum configured and an optimal configured system. Running on a min-
imum configuration causes the performance of the PC program to slow down.
• Processor: minimum 486, Pentium recommended
• Memory: minimum 4 Mb, 16 Mb recommended, minimum 540 K of conventional memory
• Hard Drive: 20 Mb free space required before installation of PC program.
• O/S: Windows 3.1, Windows 3.11 for Workgroups, Windows 95, Windows NT
ADDITIONAL WINDOWS 3.1/3.11 CONSIDERATIONS:
• Installation of SHARE.EXE required.
• Close other applications (spreadsheet or word processor) before running the PC program to eliminate any
problems because of low memory.
4.1.3 HARDWARE CONFIGURATION
The 750/760 PC Program communicate with the 750/760 via the front panel RS232 port or the rear terminal
RS485 ports. To communicate with the relay via the front RS232 port, a standard “straight through” serial cable
is used. The DB-9 male end is connected to the relay and the DB-9 or DB-25 female end is connected to the
computer for COM1 or COM2 respectively.
To communicate with the relay via the rear RS485 ports, the GE Power Management F485 RS232/RS485
Converter box is needed. The F485 converter box is connected to the converter using a “straight-through”
serial cable. A shielded twisted pair (20, 22 or 24 AWG) cable is used to connect the converter box to the 750/
760 rear terminals. The converter box (+, –, GND) terminals are connected to the (B1, B2, B3) relay terminals
for relay COM1 respectively. The line should also be terminated in an RC network (i.e. 120
Ω
, 1 nF) as
described in Section 3.2: TYPICAL WIRING on page 3–5.
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