The EMCP 3 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 | ||
| 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 |
| 38 17 | External Tank Low Fuel Level Warning FUEL LVL Fault and Analog Input WARNING Circuit Fault | ||
| 38 3 | External Tank Fuel Level Sensor Short High | Analog Input Circuit Fault | |
| 38 4 | External Tank Fuel Level Sensor Short Low | 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.