Communications; Testing - GE Multilin 489 Instruction Manual

2.2.7

Communications

2.2.8

Testing

2–14
Courtesy of NationalSwitchgear.com
COMMUNICATIONS PORTS
RS232 port: 1, front panel, non-isolated
RS485 ports: 2, isolated together at 36 Vpk
RS485 baud rates: 300, 1200, 2400, 4800, 9600, 19200
RS232 baud rate: 9600
Parity: None, Odd, Even
Protocol: Modbus
PRODUCTION TESTS
Thermal cycling: Operational test at ambient, reducing to –40°C and then
increasing to 60°C
Dielectric strength: 1.9 kV AC for 1 second or 1.6 kV AC for one minute, per UL 508.
DO NOT CONNECT FILTER GROUND TO SAFETY GROUND DURING ANY PRODUCTION TESTS!
TYPE TESTING
The table below lists the 489 type tests:
Standard
EIA 485 RS485 Communications Test
GE Multilin Temperature Cycling
IEC 60068-2-38 Composite Temperature/Humidity
IEC 60255-5 Dielectric Strength
IEC 60255-5 Impulse Voltage
IEC 60255-5 Insulation Resistance
IEC 60255-21-1 Sinusoidal Vibration
IEC 60255-22-2 Electrostatic Discharge: Direct
IEC 60255-22-3 Radiated RF Immunity
IEC 60255-22-4 Electrical Fast Transient / Burst Immunity
IEC 60255-22-5 Surge Immunity
IEC 60255-22-6 Conducted RF Immunity, 150 kHz to 80 MHz
IEC 60255-25 Radiated RF Emission
IEC 60255-25 Conducted RF Emission
IEC 60529 Ingress of Solid Objects and Water (IP)
IEC 61000-4-8 Power frequency magnetic field immunity
IEC 61000-4-11 Voltage Dip; Voltage Interruption
IEEE C37.90 Make and carry
IEEE C37.90.1 Fast Transient SWC
IEEE C37.90.1 Oscillatory Transient SWC
CHAPTER 2: INTRODUCTION
®
RTU / half duplex, DNP 3.0
Test Name
489 GENERATOR MANAGEMENT RELAY – INSTRUCTION MANUAL
Level
32 units at 4000 ft.
–50°C / +80°C
65/–10°C at 93% RH
2300 V AC
5 kV
>100 MΩ / 500 V AC / 10 s
2 g
8 kV
10 V/m
4 kV
4 kV / 2 kV
10 V/m
Group 1 Class A
Group 1 Class A
IP40 (front), IP20 (back)
30 A/m
0%, 40%, 100%
30 A DC
±4 kV
±2.5 kV