The ProTech 203 Overspeed Protection System is a digital overspeed trip device
that senses prime mover speed through three magnetic pickups (MPUs). It
consists of three identical, independent, speed-sensing units which continuously
monitor prime mover speed and activate a trip relay when an overspeed
condition is detected. The trip relays of the three units are connected in a two
out-of-three voting configuration so that if any single unit fails, the ProTech
system will still provide the correct output. The units' functions include the ability
to display the actual speed from each speed probe, display the highest speed
signal, on-line testing, and modular design that allows a single failed unit to be
replaced while the device is running. Light emitting diodes (LEDs) and digital
displays on the unit front panel indicate the functional status.
Use only the wire sizes specified in Table 4-3. which meet local code requirements. Time delay fuses or circuit
breakers must be used to prevent nuisance trips.
In the event that on supply needs to be replaced, the recommended method for changing
Power Modules is with the power off (to the module being removed and the module being inserted).
The system will tolerate this “cold swap” method without failure.
Woodward THICK DROP, 7/8' MALE TO PIGTAIL, (3M) 5417-1119
Woodward THICK DROP, 7/8" MALE TO PIGTAIL, (6M) 5417-1281
Woodward MICRONET DROP, M12 FEMALE TO 7/8' MALE, (0.5M) 5417-1120
Woodward MICRONET DROP, 7/8' MALE TO M12 FEMALE, (1M) 5417-1127
Woodward MICRONET DROP, 7/8' MALE TO M12 FEMALE, (2M) 5417-1128
Woodward MICRONET DROP, 7/8" MALE TO M12 FEMALE, (3M) 5417-1245
Woodward MID DROP, 7/8' MALE TO PIGTAIL, (1M) 5417-1142
Woodward MID DROP, 7/8' MALE TO PIGTAIL, (2M) 5417-1143
Woodward MID TRUNK CABLE (0.5M) 5417-1145
Woodward MID TRUNK CABLE (6M) 5417-1150
Woodward MicroNet TMR Hardware Kit with 4565-1115, 120V AC/DC 8262-1145
Woodward MicroNet TMR Hardware Kit with 4565-1115, 220V AC 8262-1146
Woodward MicroNet TMR Hardware Kit with 4565-1115, 24 VDC 8262-1147
Woodward MicroNet TMR Hardware Kit with 4565-253, 120V AC/DC 8262-1148
Woodward MicroNet TMR Hardware Kit with 4565-253, 220V AC 8262-1149
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