This manual describes the ProTech® electronic two-out-of-three Overspeed
Protection System. The manual explains the operation and gives the
configuration procedures for the system. This manual does not contain
instructions for the operation of the complete turbine system. For turbine- or
plant-operating instructions, contact the plant-equipment manufacturer.
Before doing any installation, maintenance, adjustments, or configuration on the
ProTech 203 system, read manual 82715. Guide for Handling and Protection:
Electronic Controls, Printed Circuit Boards, Modules.
For redundant operation, the control can use any combination of power supplies.
The power supplies can only be installed into slots PS1 (power supply #1) and PS2 (power supply #2). If
redundant power supplies are not needed, blanking plates must be installed in the slots not being used.
Branch circuit fuses, circuit breakers, and wiring must meet appropriate codes and authorities having
jurisdiction for the specific country (CE, UL, etc.). See Table 4-3 for maximum recommended fuse or
breaker ratings. Do not connect more than one main power supply to any one fuse or circuit breaker. 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 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
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
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