CAT EMCP 4 - 5.3 GENERATOR OTHER MONITORING; 5.4 BUS AC MONITORING; VOLTAGE DATA; FREQUENCY DATA

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Application and Installation Guide EMCP 4 SCADA Data Links

 Generator Phase C Power Factor Lagging (161) – indicates phase lead/lag status

5.3 GENERATOR OTHER MONITORING

Most of these monitoring parameters are only available if they are being received over either the Primary

or Accessory Data Link (typically from either the RTD module or the Thermocouple module). Excitation

data would be coming from a CDVR module.

 Generator Front Bearing Temperature from Data Link (149) – also called bearing #2 or right bearing

 Generator Rear Bearing Temperature from Data Link (150) – also called bearing #1 or left bearing

 Generator Phase A Winding Temperature from Data Link (151)

 Generator Phase B Winding Temperature from Data Link (152)

 Generator Phase C Winding Temperature from Data Link (153)

 Generator Rear Bearing Temperature from I/O Pin (162) – for legacy use only

 Battery Voltage (202) – measured at the input to the EMCP 4, which may be lower than the

voltage at the battery terminals; see Chapter 7 for reading example

 Generator Excitation Field Voltage from Data Link (338)

 Generator Excitation Field Current from Data Link (340)

5.4 BUS AC MONITORING

Bus AC Monitoring is only available on the EMCP 4.4.

VOLTAGE DATA

 Bus Average Line-Line AC RMS Voltage (164)

 Bus Phase A Line-Line AC RMS Voltage (166)

 Bus Phase B Line-Line AC RMS Voltage (167)

 Bus Phase C Line-Line AC RMS Voltage (168)

 Bus Phase A Line-Neutral AC RMS Voltage (169)

 Bus Phase B Line-Neutral AC RMS Voltage (170)

 Bus Phase C Line-Neutral AC RMS Voltage (171)

 Bus Average Line-Neutral AC RMS Voltage (172)

 Bus Average Line-Line AC RMS Voltage Percent (173) – percentage of generator rated voltage

FREQUENCY DATA

 Bus Average AC RMS Frequency (165)

5.5 GENERATOR SET STATE MONITORING AND CONTROL

START / STOP CONTROL

 Automatic Start/Stop State (206) – engine operation state

 Bypass Cooldown (300) – command

 Engine Control Switch Position (301)

 Engine Control Switch Command (302)

 Auto Start/Stop Fuel Control Enabled (307) – status

 Dedicated Digital Input #1 (E-Stop) Active Status (612)

 Dedicated Digital Input #2 (Initiate Command) Active Status (613)

 Cooldown Duration Remaining (1054) – cooldown timer; only valid while engine is in cooldown

 Remote Initiate Command (1055) – when ECS is in Auto position, sending True commands the

engine to start.