The User Interface
154
Screen Contents
The screen contains the following options and parameters for setting up the VF Drive:
Frequency
The IQ
3
+ ST has seventy (70) different operating frequencies ranging from 31kHz up to
882kHz. Each of the available frequencies can be selected from the drop down list.
Note that the frequency selected in this screen is independent of the frequency for the
currently running product.
Tap on the arrow to the right of the field to display a list of frequencies and select the required
frequency from the list.
Drive on
The drive on time for the selected operating frequency of the transmitter is shown here. It can
be manually adjusted within this menu, though this is not recommended.
Next to the Drive on field, the Drive off time for the selected operating frequency of the
transmitter is shown. This value is read-only and cannot be changed.
Tap in the field to display a pop-up numeric keypad and enter the required value for the drive
on time.
Config current
This entry sets the target transmitter drive current that the auto configure process will use,
subject to a maximum figure of 350mA.
For conveyor detectors using the standard board, the default value is 230mA. For conveyor
detectors using the auto-balance board, the default value is 350mA. For pipeline detectors,
the default value is 100mA.
Tap in the field to display a pop-up numeric keypad and enter the required value for the
Config current.
Drive current
The drive current for the selected operating frequency is displayed as a read only value. This
value is controlled by the drive on time setting. When the detector has been configured
correctly, the value will generally be close to the Config current value set.
Larger aperture detectors operating at above 600kHz are likely to show a lower value. If in
doubt contact your local Loma service centre for assistance.
Auto configure
Select this option to start the full setup process for all operating frequencies. The process
commences by resetting the on time values for each frequency to zero.
The configuration progress is displayed and will close automatically upon completion.
Tap on the button to start the Auto configure process.
Restore drive
The transmitter can drop into safe mode operation 100kHz at a low drive current. For example
the Drive On time of a particular operating frequency may have been manually increased
causing the current limit value to be exceeded. Even when the on time may have been
Summary of Contents for IQ3+ST
Page 2: ......
Page 36: ...Safety First 26 THIS PAGE IS INTENTIONALLY LEFT BLANK ...
Page 43: ...Installation 33 ...
Page 60: ...Installation 50 THIS PAGE IS INTENTIONALLY LEFT BLANK ...
Page 70: ...About the Metal Detector Range 60 THIS PAGE IS INTENTIONALLY LEFT BLANK ...
Page 172: ......
Page 212: ...Operating Instructions 202 THIS IS PAGE INTENTIONALLY LEFT BLANK ...
Page 240: ...Maintenance 230 THIS PAGE IS INTENTIONALLY LEFT BLANK ...
Page 244: ...Glossary 234 THIS PAGE IS INTENTIONALLY LEFT BLANK ...