The EMCP 4 is a generator-set controller. It is used on generator sets from Caterpillar, including the 3412C TA, 3512 TA, 3512B TA and 3512B-HD TA.
| Display | - RPM - DC volts - Operating hours - Oil pressure (psi, kPa or bar) - Coolant temperature - Volts (L-L & L-N), frequency (Hz) - Amps (per phase & average) - ekW, kVA, kVAR, kW-hr, %kW, PF (4.2 only) |
|---|---|
| Communications | Modbus RTU, CAN |
| Digital inputs | Four digital inputs (4.1), Six digital inputs (4.2 only) |
| Relay outputs | Four relay outputs (Form A), Two relay outputs (Form C) |
| Supply voltage | 24-volt DC operation |
| Dimensions | Length: 167.89 in, Width: 43.7 in, Height: 84.65 in |
| Protections | Generator phase sequence, Over/Under voltage (27/59), Over/Under Frequency (81 o/u), Reverse Power (kW) (32) (4.2 only), Reverse reactive power (kVAr) (32RV), Overcurrent (50/51) |
| Symptom | Cause | Remedy |
|---|---|---|
| Low oil pressure | ||
| High coolant temperature | ||
| Overspeed | ||
| Emergency stop | ||
| Failure to start (overcrank) | ||
| Low coolant temperature | ||
| Low coolant level | ||
| Alarm Group 1.1 | ||
| Alarm Group 1.2 | ||
| Alarm Group 1 Horn | ||
| Alarm Group 2.1 | ||
| Alarm Group 2.2 | ||
| Alarm Group 2 Horn | ||
| Alarm Group 3.1 | ||
| Alarm Group 3.2 | ||
| Alarm Group 3 Horn | ||
| Alarm Group 4.1 | ||
| Alarm Group 4.2 | ||
| Alarm Group 4 Horn | ||
| RS-485 SCADA Data Link Fault event | Any device on the network has a different baud rate than others. | Consult the EMCP 4 Application and Installation Guide for information on disabling or resetting events. |
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 Standby.