| Type |
Emergency overspeed protection board with triple modular redundancy |
| Speed Inputs |
3 independent speed sensor inputs (magnetic pickup or proximity probe) |
| Speed Range |
0–20,000 RPM configurable |
| Overspeed Trip Setpoints |
Primary (110% of rated), emergency (115% of rated), configurable via software |
| Response Time |
<10 ms from overspeed detection to trip output |
| Voting Logic |
2-out-of-3 voting for trip decision |
| Trip Outputs |
3 independent trip solenoid drivers (125 V DC, 10 A max) |
| Isolation |
Optical isolation 1500 V AC between field and logic side |
| Test Functions |
Online testing of speed channels and trip circuits |
| Power Supply |
+5 V DC and +24 V DC from system backplane |
| Power Consumption |
15 W maximum |
| Operating Temperature Range |
-30°C to +70°C |
| Mounting |
Rack mount in Mark V control panel (<R>, , or <T> core)
|
| Dimensions |
10.5" x 8.5" x 1.5" (267 mm x 216 mm x 38 mm) approximate |
| Weight |
2.5 lb (1.13 kg) |
| Connectors |
High-density ribbon cable to TCEA terminal board |
| Diagnostics |
LED status indicators, fault logging via IONet, self-diagnostics |
| Standards Compliance |
IEC 61508 SIL 3 capable, IEC 61131-2, CE, UL, CSA |
