Alerts Management

The

Alert Management Table

describes and provides a means to change how the filter responds to certain status conditions and what events trigger them. All possible alert statuses that can be incurred during operation are listed in the table. Typically, a user will leave the table to its default settings but can turn off/on certain statuses, which can be helpful in some specific applications. However, suppose a status condition gets triggered during the regular operation of the filter. In that case, the “Summary” screen of the Add On Profile Status section will display the most recent fault along with a coloring coding scheme of the severity of that status. A blue status condition is considered an informational indicator; yellow status conditions are caution indicators. These active alerts should be managed as soon as possible.

Two main events can be configured for each Alert option in the list of checkboxes: "

Relay & LED

" and "

Contactor

." When the

“Relay & LED”

option is selected, the PQconnect board inside the filter will illuminate an LED and close the custom relay output, allowing the user to connect to an external device. On the other hand, choosing the

'Contactor'

option will automatically open the filter's internal contactor when the status condition is met, resulting in the removal of the tuned circuit from the filter's circuit.

Below is the list of alerts the Filter monitors and the parameters under which they are categorized (e.g., Status Line, Status Filter, Status Load). These parameters can be thought of as the generated statuses triggered by the environment in which the filter is placed.

The preferred order for listing the status detection options is defined as follows:

Priority	Alert	Alert Severity
0	Phase A Tune Phase Loss	Caution
1	Phase B Tune Phase Loss	Caution
2	Phase C Tune Phase Loss	Caution
3	Phase A Tune Current Unbal.	Caution
4	Phase B Tune Current Unbal.	Caution
5	Phase C Tune Current Unbal.	Caution
6	Phase A Tune Undercurrent	Caution
7	Phase B Tune Undercurrent	Caution
8	Phase C Tune Undercurrent	Caution
9	Phase A Tune Overcurrent	Caution
10	Phase B Tune Overcurrent	Caution
11	Phase C Tune Overcurrent	Caution
12	Under Temperature	Information
13	Over Temperature	Information
14	CPU Fault	Caution
15	Tune Reactor Thermal SW	Information
16	Reclose Limit	Information
17	NCP Fault A	Caution
18	NCP Fault B	Caution
19	Line Reactor Thermal SW	Information
32	Phase A Line Phase Loss	Information
33	Phase B Line Phase Loss	Information
34	Phase C Line Phase Loss	Information
35	Phase A Line Overvoltage	Information
36	Phase B Line Overvoltage	Information
37	Phase C Line Overvoltage	Information
38	Frequency Mismatch	Caution
39	High Voltage THD	Information
40	Phase Rotation	Information
48	Phase A Load Current Unbal.	Information
49	Phase B Load Current Unbal.	Information
50	Phase C Load Current Unbal.	Information
51	Phase A Load Overcurrent	Information
52	Phase B Load Overcurrent	Information
53	Phase C Load Overcurrent	Information

Two Input relays are available to the Filter to alert the user if the terminals J7/J8 are shorted. An external relay (not on the PQconnect) can provide a signal to the PQconnect’s “Relay Input 1” & “Relay Input 2”. The Contactor Control Mode must be set to ‘Relay” to use this feature.

External Input defines the relay as an input for the contractor if it is in relay-controlled mode. If both relays are configured as External Input, their input is treated as either or. The table below gives a general overview of Relay Input Settings options.

"

Tune Thermal SW

" and "

Line Thermal SW

" indicate that the relay is tied to a thermal sensor switch on either the tuning or mainline voltage lines. A signal from the relay in these modes will trigger the associated event in the system.

Relay Input Options	Terminals are shorted	Terminals are un-shorted
Tune Thermal SW	No Alert, Temperature is normal	Alert Triggered, Temperature is high
Line Thermal SW	No Alert, Temperature is normal	Alert Triggered, Temperature is high
Reset Command	No change	Reset Alerts & resume normal operation
External Input	Contactor instructed to Open	Contactor instructed to close

The Relay Input option "

Reset Command

" will reset the contractor back to its configured mode if it was triggered open by a fault or other means. This is the same action as pressing "

Reset Contractor

" on the Contractor Control Screen.

Saves any modified settings so that they will remain after a power cycle. Saving the settings will automatically open the contactor.

An easy and effective way to power cycle the Filter’s PQconnect board. Any unsaved settings will be lost.