HGL Manual
5.0 PQconnect Connectivity
18
Table 8: Settings Menu
Designators
Name
Description
1.
Modbus
Allows the user to change Modbus settings of the App and device. When
changing Modbus settings of the device the user will select apply and
save settings. Afterwards the user will need to de-energize power to the
filter and re-energize the filter.
2.
Alert
Management
Enable and Disable status detections.
Depending on which status
conditions the user would like to view
The column labeled Relay & LED will show the LED pattern of the status
detection and send a warning.
The column labeled Contactor will open the contactor if the selected
status is checked and send the warning.
After selecting desired status conditions, the user will need to select apply
configuration and save settings to make the change final.
3.
Relay Input
Configuration
Relay Inputs are based on how the board is connected to digital inputs.
There is the option of having a thermal switch on the line reactor or tuning
reactor. There is also an external control input option.
•
J7 of the PCB is configured as Relay input 1
•
J8 of the PCB is configured as Relay input 2
•
Select and save desired relay action if applicable
If the user will be using the digital inputs, they must select relay under
contactor control.
4.
Contactor
Control
There are multiple ways to control the contactor.
Force Open will leave the contactor in an open state.
Force Closed will leave the contactor in a closed state.
Auto Load will close the contactor based on the load percentage selected
Relay will open/close the contactor depending on relay input
configuration. By default, these are disabled.
Auto kVAR: Based on the size of the filter the user can adjust their target
kVAR settings to open/close the contactor
When changing the contactor control state, save settings to make
the change final. Saving settings will open the contactor.
Example Application Using “Simply Modbus Master 8.1.0”
The Modbus RTU network interface port is configured for RS-485 signal levels. The following
example uses an RS-485 to USB converter to connect the PQconnect to a laptop PC running the
Modbus RTU master application. The picture below shows an example “B&B SmartWorx, Inc
Model: USPTL4” model RS-422/485 converter. As another alternative RS-485 converter there is
WINGONEER USB 2.0 to RS485 Serial Converter Adapter CP2104.