TM 9-6115-668-13 Table 1-5 J9 PARALLEL OPERATION Receptacle, Monitoring and Control Functions. Control   Cabinet   Assembly, Designation Source J9 PARALLEL OPERATION, Contact Affects 0 V (24 dcV system) - - - BATTLE   SHORT   (S21) Excitation  of  K11 - - - Excitation of K12 0 V Excitation of K25 +24 V Excitation of K17 Interlock   loop Excitation of K20 EPP III, 0 V (24 dcV system) ECS, BATTLE SHORT switch ECS,  EMERGENCY  switch Commercial Power Converter operation EPP  III  operation 2nd Gen Set 150 kW, J9-G, N-O  contact  K14 AC CIRCUIT INTERRUPTER ON N-O  contact  K14 G 2nd Gen Set 150 kW, J9-F, excitation of K20 0 V - - - H 2nd Gen Set 150 kW, J9-J, excitation of K18 PARALLEL OPERATION ON (S9) Excitation of K18 J 2nd Gen Set 150 kW, J9-H, 0 V (24 dcV system) BATTERY CHARGING CONTROL, OIL PRESSURE, OIL  TEMP-CYLINDER  HEAD N-O contact K2 K ECS, fault message AIR FILTER UNDER/OVER  FREQUENCY UNDER/OVER    VOLTAGE GENERATOR OVER TEMPERATURE N-O  contact  K4 NO contact K7 N-O contact K8 N-O  contact  K9 ECS, fault message ECS, fault message ECS, fault message ECS, fault message OVERLOAD REVERSE POWER +24  v N-O contact K21 N-O  contact  K27 N-O contact K1 ECS, fault message ECS, fault message ECS, ON message Gen Set 150  kW LOW FUEL N-O  contact  K23 M ECS, LOW FUEL message Gen Set 150 kW 1 - 2 5