
statuses were closed, then a Follower Lockout is issued. This provides an indication
that a broken communication occurred.
•
Follower Comm. Loss Lockout - If any follower does not send a valid retransmitted
GOOSE message within a 65 second internal keepalive time, then a lockout is issued,
signaling a broken communication link.
•
Tap Difference Lockout - If the Tap Position Difference between the Follower and
the Master is greater than or equal to the Tap Difference setting, the Follower will
enter the lockout state.
RTN Fail to Operate
The RTN Fail alarm will actuate when the "Maximum RTN operations before Alarms"
setting has been exceeded.
Op Count Signal
The total number of operations has exceeded the Operations Counter Alarm Limit setting.
3.7
CBEMA events and counter status
When the Load Voltage is sagging or swelling greater than the pickup setting, then a
pickup status will be set after a minimum duration, in addition to incrementing a counter.
Up to 4 CBEMA events can be set and enabled allowing the control to trigger a Sequence
of Events record when each event occurs. Also, the control will report both the time and
duration of each event via DNP. These 4 settings allow the control to be set to record
violations of the ITIC curves (formerly known as CBEMA curves).
3.8
Demand and energy metering
3.8.1
Accessing the present demand screens from the HMI
1.
Press the Left Arrow (MNTR Hot Button) pushbutton to awaken the unit. The menu
will advance to "MONITOR".
2.
Press the Down Arrow pushbutton once. The unit will display the following:
Metering
3.
Press the Right or Left arrow pushbutton, as necessary, to navigate to the "Present
Demand" screen.
4.
Pressing the Down arrow pushbutton once will advance the menu to the first element
(Demand Interval) of the "Present Demand" screens.
Demand Interval
Section 3
1VAC388793-MB A
Operation
76
TCC300
User Manual
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