Rockwell-automation 193-EC4 EC4 Current Monitoring Relay User Manual Bedienungsanleitung Seite 119

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Seitenansicht 118
120 Rockwell Automation Publication 193-UM011A-EN-P - September 2010
Appendix A Specifications
Environmental
Specifications
Current ratings must be derated at altitudes greater than 2000 m
Off-State Current 0.5 mA
Transition Voltage 5...15V DC
Transition Current 0.5...2.0 mA
Table 5 - Thermistor/PTC Input Ratings
Terminals 1T1, 1T2
Type of Control Unit Mark A
Maximum Number of Sensors 6
Maximum Cold Resistance of PTC Sensor Chain 1500 Ω
Trip Resistance 3400 Ω ± 150 Ω
Reset Resistance 1600 Ω ± 100 Ω
Short-circuit Trip Resistance 25 Ω ± 10 Ω
Maximum Voltage @ PTC Terminals (R
PTC
= 4
kΩ)
7.5V DC
Maximum Voltage @ PTC Terminals (R
PTC
=open)
30V DC
Response Time 800 ms
Table 4 - Input Ratings
Table 6 - Environmental Specifications
Ambient Temperature
Storage
Operating
(Open)
(Enclosed)
–40°…+85°C (–40…+185°F)
–20°…+55°C (–4°…+131°F)
–20°…+40°C (–4°…+104°F)
Humidity
Operating
Damp Heat – Steady State (per IEC 68-2-3)
Damp Heat – Cyclic (per IEC 68-2-30)
5…95% Non-condensing
92% r.h., 40°C (104°F), 56 days
93% r.h., 25°C/40°C (77°F/104°F), 21 Cycles
Cooling Method Natural Convection
Vibration (per IEC 68-2-6) 3 G
Shock (per IEC 68-2-27) 30 G
Maximum Altitude 2000 m
Pollution Environment Pollution Degree 3
Terminal Marking EN 50012
Degree of Protection
193-ECxxx
592-ECxxx
IP20
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