The EMCP3 is a generator-set controller. It is used on generator sets from Caterpillar, including the 3406C TA, BRK1-Up, CAL1-Up and CMC1-Up.
| Display | AC SCREEN 7, AC SCREEN 8 (EMCP 3.3 ONLY), AC SCREEN 9 (EMCP 3.3 ONLY), AC SCREEN 10 (EMCP 3.3 ONLY) |
|---|---|
| Relay outputs | Relay Output #1: Starter Motor, Relay Output #2: Fuel Enable, 6/8 remaining for other applications (Type-A or Type-C) |
| Digital inputs | ["Digital Input #3", "Digital Input #4"] |
| Analog inputs | ["Engine Oil Pressure", "Engine Coolant Temperature", "Spare Analog Input"] |
| Communications | Modbus RTU |
| Protections | ["Generator Reverse Power Warning", "Generator Reverse Power Shutdown"] |
| Supply voltage | 9 VDC to 32 VDC (nominal: 12 VDC or 24 VDC) |
| Operating temperature | -40°C to 70°C |
| Code | Meaning | Cause | Remedy |
|---|---|---|---|
| 0 | Exhaust TEMP Fault and Analog Temperature SHUTDOWN Input Circuit Fault | ||
| 0 | Temperature EXHAUST TEMP Fault and Analog Shutdown SHUTDOWN Input Circuit Fault | ||
| 0 | Frequency FREQUENCY Shutdown SHUTDOWN | ||
| 0 | Voltage Shutdown VOLTAGE SHUTDOWN Voltage Warning | ||
| 0 | Current Shutdown CURRENT SHUTDOWN | ||
| 1 | Temperature EXHAUST TEMP Fault and Analog P SHUTDOWN Input Circuit Fault | ||
| 1 | Temperature EXHAUST TEMP Fault and Analog Shutdown SHUTDOWN Input Circuit Fault | ||
| 1 | Frequency FREQUENCY Shutdown SHUTDOWN | ||
| 1 | Voltage Shutdown VOLTAGE Voltage Warning SHUTDOWN Voltage Warning | ||
| 100 1 | PRESS SHUTDOWN Fault and Digital Input Circuit | ||
| 100 17 | PRESS WARNING Fault and Digital Input Circuit | ||
| 107 0 | DIFF PRES SHUTDOWN Fault and Analog | ||
| 107 1 | DIFF PRES SHUTDOWN Fault and Analog | ||
| 107 15 | HIGH AIR FILTER DIFF PRES Fault and Analog | ||
| 107 17 | LOW AIR FILTER DIFF PRES Fault and Analog | ||
| 110 0 | HIGH ENGINE COOLANT TEMP SHUTDOWN Fault and Digital Input Circuit | ||
| 110 15 | LOW ENGINE COOLANT TEMP WARNING Fault and Digital Input Circuit | ||
| 111 | High Engine Coolant | HIGH ENG COOL | Digital Input Circuit Level Warning LEVEL WARNING § | Fault and Analog Input Circuit Fault | |
| 111 0 | HIGH ENG COOL LEVEL SHUTDOWN Fault and Analog | ||
| 111 1 | LOW ENG COOL LEVEL WARNING Fault and Analog | ||
| 111 15 | HIGH ENG COOL LEVEL WARNING Fault and Analog | ||
| 111 17 | LOW ENG COOL LEVEL WARNING Fault and Analog | ||
| 1122 0 | HIGH GEN #1 BEARING TEMP | SHUTDOWN Fault and Analog Input Circuit Fault | |
| 1122 0 | BEARING #1 TEMP SHUTDOWN Fault and Analog | Shutdown Input Circuit Fault - Generator | |
| 1122 1 | LOW GEN REAR BEARING TEMP | SHUTDOWN Fault and Analog Input Circuit Fault | |
| 1122 1 | BEARING TEMP SHUTDOWN Fault and Analog | Shutdown Input Circuit Fault - Generator | |
| 1122 15 | HIGH GEN REAR BEARING TEMP WARNING | WARNING Fault and Analog Input Circuit Fault | |
| 1122 15 | BEARING TEMP WARNING Fault and Analog | Warning Input Circuit Fault - Generator | |
| 1122 17 | LOW GEN REAR BEARING TEMP WARNING | WARNING Fault and Analog Input Circuit Fault | |
| 1122 17 | BEARING TEMP WARNING Fault and Analog | Warning Input Circuit Fault - Generator | |
| 1122 3 | GEN REAR BEARING TEMP SENSOR SHORT HIGH | SENSOR SHORT Fault | |
| 1122 3 | SENSOR SHORT HIGH Fault | Generator Rear - BEARING TEMP Analog Input Circuit | |
| 1122 4 | GEN REAR BEARING TEMP SENSOR SHORT LOW | SENSOR SHORT Fault | |
| 1122 4 | SENSOR SHORT LOW Fault | Generator Rear - BEARING TEMP Analog Input Circuit | |
| 12 | Sensing System SYS FAILURE Sensing Circuit Fault | ||
| 1231 11 | ACCESSORY DATA LINK FAULT | DATA LINK FAULT | |
| 12339 3 | FUEL TANK LEAK Fault | Digital Input Circuit | |
| 1239 | Ruptured Fuel Basin-Primary Tank | ||
| 1239 | Unexpected Engine Shutdown | ||
| 1239 31 | FUEL TANK LEAK (FUEL Rupture Basin) | Fault | |
| 137 | High Fire Extinguisher | HIGH FIRE | Digital Input Circuit Pressure Shutdown EXTNG PRES Fault and Analog Input SHUTDOWN Circuit Fault | |
| 137 | Low Fire Extinguisher | LOW FIRE | Digital Input Circuit Pressure Shutdown EXTNG PRES Fault and Analog Input SHUTDOWN Circuit Fault | |
| 137 | Fire Extinguisher | FIRE EXTING | Analog Input Circuit Pressure Sensor Short | PRES SENSOR Fault HIGH SHORT HIGH | |
| 137 0 | HIGH FIRE EXTNG PRES SHUTDOWN Fault and Analog | ||
| 137 1 | LOW FIREEXTNG PRES SHUTDOWN Fault and Analog | ||
| 137 15 | HIGH FIRE EXTNG Pressure Warning - Digital Input Circuit | ||
| 137 17 | LOW FIREEXTNG Pressure Warning - Digital Input Circuit | ||
| 137 3 | FIRE EXTING SENSOR SHORT - Analog Input Circuit | ||
| 137 4 | FIRE EXTNG PRES Analog Input Circuit | ||
| 15 | Temperature EXHAUST TEMP Fault and Analog PS WARNING Input Circuit Fault | ||
| 15 | Frequency FREQUENCY Warning Frequency Warning | ||
| 15 | Voltage Warning VOLTAGE WARNING | ||
| 15 | Current Warning CURRENT WARNING | ||
| 1664 | Engine Failure to Start Shutdown | ||
| 1664 31 | ENGINE FAILURE TO START | SHUTDOWN Warning Engine Overcrank | |
| 1664 31 | ENGINE FAILURE TO START SHUTDOWN Warning | Start Shutdown | |
| 167 | Low Battery Charging System | LOW BATTERY Charging System | System Voltage Warming CHARGING SYS VOLT WARN | |
| 167 17 | VOLT WARN - Charging System | ||
| 168 | High Battery Voltage | HIGH BATTERY Charging System | Shutdown VOLTAGE SHUTDOWN | |
| 168 | Low Battery Voltage | LOW BATTERY Charging System | Warning VOLTAGE WARNING | |
| 168 0 | VOLTAGE SHUTDOWN - Charging System | ||
| 168 15 | VOLTAGE WARNING - Charging System | ||
| 168 17 | VOLTAGE WARNING - Charging System | ||
| 17 | Temperature EXHAUST TEMP Fault and Analog PY WARNING Input Circuit Fault | ||
| 17 | Frequency FREQUENCY Frequency Warning | ||
| 17 | Voltage Warning VOLTAGE WARNING | ||
| 17 | Generator Reverse POWbR WARNIN G Generator Reverse Power Warning Power Warning | ||
| 171 | High Ambient Air Temperature | HIGH AMBIENT Digital Input Circuit | AIR TEMP Fault and Analog Input SHUTDOWN Circuit Fault | |
| 171 | Low Ambient Air Temperature | LOW AMBIENT Digital Input Circuit | AIR TEMP Fault and Analog Input SHUTDOWN Circuit Fault | |
| 171 | Ambient Air Temperature Sensor Short | AMBIENT AIR Analog Input Circuit | TEMP SENSOR Fault SHORT HIGH | |
| 171 | High Ambient Air Temperature Warning | HIGH AMBIENT Digital Input Circuit | AIR TEMP Fault and Analog Input WARNING Circuit Fault | |
| 171 | Low Ambient Air Temperature Warning | LOW AMBIENT Digital Input Circuit | AIR TEMP Fault and Analog Input WARNING Circuit Fault | |
| 171 0 | HIGH AMBIENT AIR TEMP SHUTDOWN - Analog Input Circuit | ||
| 171 1 | LOW AMBIENT AIR TEMP SHUTDOWN - Analog Input Circuit | ||
| 171 3 | TEMP SENSOR Short High - Analog Input Circuit | ||
| 171 4 | TEMP SENSOR Short Low - Analog Input Circuit | ||
| 173 | High Exhaust Temperature | HIGH EXHAUST Digital Input Circuit | TEMP Fauit and Analog Input SHUTDOWN Circuit Fault | |
| 173 | Low Exhaust Temperature | LOW EXHAUST Digital Input Circuit | TEMP SHUTDOWN Fault and Analog Input Circuit Fault | |
| 173 | Exhaust Temperature Sensor Short | EXHAUST Analog Input Circuit | SENSOR SHORT HIGH TEMPERATURE Fauit | |
| 173 0 | HIGH EXHAUST TEMP SHUTDOWN - Analog Input Circuit | ||
| 173 1 | LOW EXHAUST TEMP SHUTDOWN - Analog Input Circuit | ||
| 173 3 | TEMP SENSOR Short High - Analog Input Circuit | ||
| 173 4 | TEMP SENSOR Short Low - Analog Input Circuit | ||
| 175 | High Engine Oil Temperature | HIGH ENGINE Digital Input Circuit | OIL TEMP Fault and Analog Input SHUTDOWN Circuit Fault | |
| 175 | Engine Oil Temperature Sensor Short | ENGINE OIL TEMP | Analog Input Circuit SENSOR SHORT HIGH Fault | |
| 175 | High Engine Oil Temperature Warning | HIGH ENGINE Digital Input Circuit | TEMP WARNING Fault and Analog Input Circuit Fault | |
| 175 | Low Engine Oil Temperature Warning | LOW ENGINE Digital Input Circuit | TEMP WARNING Fault and Analog Input Circuit Fauit | |
| 175 | HIGH ENGINE OIL TEMP | ||
| 175 | TEMP WARNING | ||
| 175 0 | HIGH ENGINE OIL TEMP SHUTDOWN - Digital Input Circuit | ||
| 175 1 | Temperature TEMP SHUTDOWN | Fault and Analog | Shutdown Input Circuit Fault - Engine Oil | |
| 175 15 | Temperature HIGH ENGINE OIL | eault and Analog | Shutdown Input Circuit Fault - Engine Oil | |
| 175 17 | Temperature TEMP Worthing a Fault and Analog | Warning Input Circuit Fault - Engine Oil | |
| 175 3 | Sensor Short High |! ricpy aul | Engine Oil - ENGINE OIL TEMP | |
| 175 4 | Sensor Short Low Fault | Engine Oil - ENGINE OIL TEMP | |
| 176 | Low Engine Oil Temperature | LOW ENGINE Digital Input Circuit | OIL TEMP Fault and Analog Input SHUTDOWN Circuit Fauit | |
| 18 | SHORT HIGH | ||
| 190 | Engine Over Speed | ENGINE OVER SPEED Shutdown OVER SPEED Warning SHUTDOWN | |
| 190 | Engine Under Speed | ENGINE UNDER SPEED Shutdown UNDER SPEED Warning SHUTDOWN | |
| 190 | Engine Speed Sensor Erratic or Not Present | SPEED ENGINE SPEED Engine Speed Circuit SENSOR Fault ERRATIC/LOST | |
| 190 | Engine Speed Sensor Open | SPEED ENGINE SPEED Engine Speed Circuit SENSOR OPEN Fault | |
| 190 | ENGINE SPEED SENSOR | ERRATIC/LOST | |
| 190 0 | SPEED SHUTDOWN | Shutdown Input Circuit Fault - Engine Speed | |
| 190 1 | SPEED SHUTDOWN | Engine Under Speed | |
| 190 2 | SENSOR ERRATIC/LOST au | Engine Speed - Engine Speed Circuit | |
| 190 5 | SENSOR OPEN Fault | Engine Speed - Engine Speed Circuit | |
| 190 7 | SPEED WARNING | Warning Input Circuit Fault - Engine Speed | |
| 2 | Frequency FREQ MISMATCH Generator Output Generator Output Mismatch Warning WARN Generator Output Generator Output | ||
| 2433 | High Right Digital Input Circuit | ||
| 2433 | Low Right Digital Input Circuit | ||
| 2433 0 | HIGH RIGHT EXHAUST TEMP | SHUTDOWN Fault and Analog Input Circuit Fault | |
| 2434 | High Left Exhaust HIGH LEFT Digital Input Circuit | ||
| 2434 | Low Left Exhaust LOW LEFT Digital Input Circuit | ||
| 2434 | Left Exhaust LEFT EXHAUST | ||
| 2436 | Generator Over GEN OVER Generator Over | ||
| 2436 | Generator Under GEN UNDER Generator Under | ||
| 2436 | Generator Frequency | ||
| 2437 | Ruptured Fuel Basin - Primary Tank | ||
| 2440 | Generator Over GEN OVER Generator Over | ||
| 2440 | Generator Under GEN UNDER Generator Under | ||
| 2440 | Generator Voltage | ||
| 2448 | Generator Over GEN OVER Generator Over | ||
| 2448 | Generator AC Current | ||
| 2452 | Generator Reverse GEN REVERSE Power Shutdown POWER Power Warning | ||
| 2452 | Generator Reverse Power (kW) | ||
| 2456 | Generator Reactive Power (VAR) | ||
| 2648 | Maintenance INTERVAL Service Hyormation Interval Warning WARNING Interval Warning | ||
| 2648 | Service Interval Warning | ||
| 3 | Temperature Hich TEMP SENSOR Analog Input Circuit | ||
| 31 | Air Damper AIR DAMPER Digital Input Circuit Closed CLOSED Fault | ||
| 31 | Pay in Emergency EMERGENCY petal Input Circuit Position POSITION an | ||
| 31 | Generator Circuit ener eRe. OSED Digital Input Circuit Breaker Closed Fault | ||
| 31 | Engine in ENGINE IN Engine Cooldown COOLDOWN Warning WARNING | ||
| 31 | Unexpected UNEXPECTED U ted Engine Engine Shutdown SHUTDOWN uidown | ||
| 38 0 | High Fuel Level | External Tank Digital Input Circuit Fault | |
| 38 1 | Low Fuel Level | External Tank Digital Input Circuit Fault | |
| 38 15 | High Fuel Level Warning | External Tank Analog Input Circuit Fault | |
| 38 17 | Low Fuel Level Warning | External Tank Analog Input Circuit Fault | |
| 38 3 | Level Sensor Short - High | External Tank Analog Input Circuit Fault | |
| 38 4 | Level Sensor Short - Low | External Tank Analog Input Circuit Fault | |
| 4 | Temperature OW TEMP SENSOR Analog Input Circuit | ||
| 4000 | ATS in Normal ATS IN NORMAL Digital Input Circuit Position POSITION Fault | ||
| 4000 | Air Shutoff Damper Close Shutdown | ||
| 4001 | ATS in Normal Position | ||
| 4002 | Gen Supplying Load | ||
| 4003 | Battery Charger CHARGER FAILURE Digital Input Circuit Failure Fault | ||
| 4003 | Battery Charger Failure | ||
| 4004 | Gen Breaker Closed | ||
| 4005 | Utility Circuit UTILITY BREAKER || Digital Input Circuit Breaker Closed CLOSED Fault | ||
| 4005 | Utility Breaker Closed |
Fault codes and symptom→remedy steps extracted from this controller’s service/owner documentation; verify against the official manual before servicing. Extracted directly from this controller's manual.
Also fitted to: Caterpillar C32 ACERT™ Diesel Oilfield Generator Set, Caterpillar PRIME, Caterpillar Standby.
| Code | Meaning | Cause | Remedy |
|---|---|---|---|
| 100 1 | Low Engine Oil Pressure | LOW ENGINE Data Link circuit Fault | |
| 107 0 | High Air Filter Differential | HIGH AIR FILTER | Digital Input Circuit | |
| 107 0 | High Air Filter Differential Pressure Shutdown | ||
| 107 1 | Low Air Filter Differential | LOW AIR FILTER | Digital Input Circuit | |
| 107 15 | High Air Filter Differential Pressure Warning | ||
| 107 17 | Low Air Filter Differential Pressure Warning | ||
| 107 3 | Air Filter Differential Pressure Sensor Short | PRES SENSOR Fault (High SHORT) | |
| 107 3 | Air Filter Differential Pressure Sensor Short High | ||
| 107 4 | Low Air Filter Differential Pressure Shutdown | ||
| 110 0 | High Engine Coolant Temperature | HIGH ENGINE Data Link Circuit Fault | |
| 110 0 | High Engine Coolant Temperature Shutdown | ||
| 110 15 | High Engine Coolant Temperature Warning | ||
| 110 17 | Low Engine Coolant Temperature | TEMP WARNING and Digital Input Circuit | |
| 110 17 | Low Engine Coolant Temperature Warning | ||
| 111 0 | High Engine Coolant Level | COOL LEVEL Fault and Analog Input | |
| 111 0 | High Engine Coolant Level Shutdown | ||
| 111 1 | Low Engine Coolant Level | COOL LEVEL Fault and Analog Input | |
| 111 1 | Low Engine Coolant Level Shutdown | ||
| 111 17 | Low Engine Coolant Level Warning | ||
| 111 3 | Engine Coolant Level Sensor Short (High) | SENSOR SHORT HIGH | |
| 111 3 | Engine Coolant Level Sensor Short High | ||
| 111 4 | Engine Coolant Level Sensor Short (Low) | SENSOR SHORT LOW | |
| 111 4 | Engine Coolant Level Sensor Short Low | ||
| 114 15 | High Engine Coolant Level Warning | ||
| 1450 | Cold Start Strategy Activation | ||
| 167 17 | Low Battery Charging System | ||
| 167 17 | Low Battery Charging System Voltage Warming | CHARGING SYS VOLT WARN | |
| 168 17 | Low Battery Voltage | ||
| 168 Q | High Battery Voltage | ||
| 171 0 | High Ambient Air Temperature | ||
| 171 3 | Ambient Air Temperature Sensor Short | TEMP SENSOR Fault | |
| 171 3 | Ambient Air Temperature Sensor Short (High) | TEMP SENSOR Fault (SHORT HIGH) | |
| 171 4 | Ambient Air Temperature Sensor Short (Low) | TEMP SENSOR Fault (SHORT LOW) | |
| 171 4 | Low Ambient Air Temperature | ||
| 173 0 | High Exhaust Temperature | ||
| 173 3 | Exhaust Temperature Sensor Short | TEMP SENSOR Fault | |
| 173 3 | Exhaust Temperature Sensor Short (High) | SENSOR SHORT HIGH | |
| 173 4 | Exhaust Temperature Sensor Short (Low) | SENSOR SHORT LOW | |
| 173 4 | Low Exhaust Temperature | ||
| 175 0 | High Engine Oil Temperature | ||
| 175 3 | Engine Oil Temperature Sensor Short | SENSOR SHORT | |
| 175 3 | Engine Oil Temperature Sensor Short (High) | SENSOR SHORT HIGH | |
| 176 4 | Low Engine Oil Temperature | ||
| 190 0 | Engine Over Speed | ||
| 190 1 | Engine Under Speed | ||
| 190 17 | Engine Under Speed Warning | ||
| 190 2 | Engine Speed Sensor Erratic or Not Present | SENSOR Fault | |
| 190 5 | Engine Speed Sensor Open | SENSOR OPEN Fault | |
| 1900 | Overspeed | ||
| 1907 | Overspeed | ||
| 1912 | Overspeed | ||
| 21 | Fault shutdown | ||
| 22 | Fault alarm | ||
| 2301A Control | When the engine oil pressure is increased beyond the low oil pressure setpoint, the GSC will inform the governor that the engine speed should be increased from IDLE to RATED rpm. | ||
| 38 0 | External Tank High Fuel Level Shutdown | Digital Input Circuit or Analog Input Circuit Fault | Fault and Analog Input Circuit Fault |
| 38 0 | External Tank High Fuel Level Shutdown FUEL LEVEL S/D_ | Digital Input Circuit Fault and Analog Input Circuit Fault | |
| 38 1 | External Tank Low Fuel Level Shutdown | Digital Input Circuit or Analog Input Circuit Fault | Fault and Analog Input Circuit Fault |
| 38 1 | External Tank Low Fuel Level Shutdown FUEL LEVEL S/D | Digital Input Circuit Fault and Analog Input Circuit Fault | |
| 38 15 | External Tank High Fuel Level Warning FUEL LVL Fault and Analog Input WARNING Circuit Fault | ||
| 38 17 | External Tank Low Fuel Level Warning | Digital Input Circuit or Analog Input Circuit Fault | Fault and Analog Input Circuit Fault |
Fault codes and symptom→remedy steps extracted from this controller’s service/owner documentation; verify against the official manual before servicing. Aggregated from the service documentation of generator sets built on this controller.