Marathon Electric DVR 2000E+ - Generator Reverse Power Flow Alarm; Loss of CAN Communication Alarm

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Marathon Electric (a division of RBC Manufacturing Corp.) reserves the right to change specications and this manual without notice.
Revised 06/2011
Generator Reverse Power Flow Alarm
The DVR
®
2000E+ has a fixed Generator Reverse Power Flow Alarm threshold. If the regulator senses reverse
power flow in excess of alarm threshold, the HMI will change from a PYN status to an alarm status with alarm code
A014 until the reverse power flow falls below the alarm threshold. The Windows® communication software also
displays this alarm condition.
Loss of CAN Communication Alarm
The DVR
®
2000E+hasanadjustableLossofCANCommunicationtimeoutthresholdof0.0to45.0seconds(default
of0.0sec).Iftheregulatordoesnotreceivea“VRHeartbeat”messagewithinthethresholdtime,theHMIwill
change from a PYN status to an alarm status with alarm code A006untiltheregulatorreceivesa“VRHeartbeat”
message. This feature is disabled if the timeout is set to 0.0 seconds. Refer to Section 8 – CAN Bus Interface for
details.
Figure 3-3 Examples of Under Frequency and Slope