GE Power Management 469 Motor Management Relay 1-5
1 INTRODUCTION 1.2 SPECIFICATIONS
1
1.2 SPECIFICATIONS 1.2.1 469 SPECIFICATIONS
POWER SUPPLY
Options: LO / HI (must be specified with order)
Range: LO: DC: 20 to 60 V DC
AC: 20 to 48 V AC at 48 to 62 Hz
HI: DC: 90 to 300 V DC
AC: 70 to 265 V AC at 48 to 62 Hz
Power: 45 VA (max), 25 VA typical
Proper operation time without supply voltage: 30 ms
PHASE CURRENT INPUTS
CT Primary: 1 to 5000 A
CT Secondary: 1 A or 5 A (must be specified with order)
Burden: Less than 0.2 VA at rated load
Conversion Range: 0.05 to 20 × CT
Accuracy: at < 2 x CT: ± 0.5% of 2 × CT
at ≥ 2 x CT: ± 1% of 20 × CT
CT Withstand: 1 second @ 80 × rated current
2 seconds @ 40 × rated current
continuous @ 3 × rated current
GROUND CURRENT INPUTS
CT Primary: 1 to 5000 A
CT Secondary: 1 A or 5 A (setpoint)
Burden: < 0.2 VA at rated load for 1 A or 5 A
< 0.25 VA for 50:0.025 @ 25 A
Conversion Range: 0.02 to 1 × CT primary Amps
Accuracy: ± 0.5% of 1 × CT for 5 A
± 0.5% of 5 × CT for 1 A
± 0.125 A for 50:0.025
CT Withstand: 1 second @ 80 × rated current
2 seconds @ 40 × rated current
continuous @ 3 × rated current
DIFFERENTIAL PHASE CURRENT INPUTS
CT Primary: 1 to 5000A
CT Secondary: 1 A or 5 A (setpoint)
Burden: Less than 0.2 VA at rated load
Conversion Range: 0.02 to 1 × CT
Accuracy: ±0.5% of 1 × CT for 5 A
±0.5% of 5 × CT for 1 A
CT Withstand: 1 second @ 80 × rated current
2 seconds @ 40 × rated current
continuous @ 3 × rated current
VOLTAGE INPUTS
VT Ratio: 1.00 to 150.00:1 in steps of 0.01
VT Secondary: 273 V AC (full scale)
Conversion Range: 0.05 to 1.00 × full scale
Accuracy: ±0.5% of full scale
Max. Continuous: 280 V AC
Burden: > 500 kΩ
DIGITAL INPUTS
Inputs: 9 opto-isolated inputs
External Switch: dry contact < 800 Ω, or
open collector NPN transistor from sen-
sor; 6 mA sinking from internal 4 KΩ pull-
up at 24 V DC with Vce < 4 V DC
469 Sensor Supply: +24 V DC at 20 mA max.
RTD INPUTS
RTDs: 3 wire type:100 Ω Platinum (DIN.43760)
100 Ω Nickel
120 Ω Nickel
10 Ω Copper
RTD Sensing Current: 5mA
Isolation: 36 Vpk
(isolated with analog inputs and outputs)
Range: –50 to +250°C
Accuracy: ±2°C
Lead Resistance: 25 Ω Max per lead for Pt and Ni type
3 Ω Max per lead for Cu type
No Sensor: >1000 Ω
Short/Low Alarm: < –50°C
TRIP COIL SUPERVISION
Applicable Voltage: 20 to 300 V DC / V AC
Trickle Current: 2 to 5 mA
ANALOG CURRENT INPUTS
Current Inputs: 0 to 1 mA, 0 to 20mA or 4 to 20 mA
(setpoint)
Input Impedance: 226 Ω ±10%
Conversion Range: 0 to 21 mA
Accuracy: ±1% of full scale
Type: passive
Analog Input Supply: +24 V DC at 100 mA max.
Response Time: ≤ 100 ms
COMMUNICATIONS PORTS
RS232 Port: 1, Front Panel, non-isolated
RS485 Ports: 2, Isolated together @ 36 V
pk
Baud Rates: RS485: 300, 1200, 2400, 4800, 9600,
19200
RS232: 9600
Parity: None, Odd, Even
Protocol: Modbus
®
RTU / half duplex