uGI1 Operation

Q: What is the difference between the uGI1-B (Basic) and uGI1-S (Advanced)?

uGI1-B (Basic)
This is the GPS synchronized portable interrupter that can be configured locally with a Bluetooth enabled mobile device.

uGI1-S (Advanced)
This is the remote GPS synchronized portable interrupter equipped with two-way Iridium satellite communication. The uGI1-S can either be configured locally or sent commands with interruption parameters remotely via CorView.

Q: How do I select the interruption profile I want on the uGI1?

Press the PROFILE “SEL” button next to the LCD on the underside of the uGI1.

uGI1 Operation – Input Power

Q: How do I power the uGI1?

Attach the SRL1 AC/DC Smart Relay, SRL2 DC Smart Relay or the External Relay Interface cable to the uGI1, and connect the two yellow wires to a suitable voltage source. The acceptable input voltage range is 8VDC to 52VDC or 6VAC to 36VAC.

Q: What is the acceptable input voltage range for powering the uGI1?

The acceptable input voltage range is: 8VDC to 52VDC or 6VAC to 36VAC.

Q: Can I power my uGI1 from the rectifier taps?

Yes. Use your multi-meter to find two taps where the voltage is between 6VAC and 36VAC. Be mindful that unloaded rectifier transformers may output a significantly higher voltage than when it is loaded (i.e. the voltage will go up during the interruption off cycle).

Q: Can I power my uGI1 from the DC output of the rectifier?

No. Avoid powering the uGI1 from the DC side of the rectifier as large transients may occur when the DC current flow is interrupted. Look for a suitable power source such as a battery, wall adapter, rectifier taps, or transformer.

Q: What battery do you suggest for powering the uGI1?

Our recommendation is a 12V 20Ahr sealed Lead Acid Battery. Depending on battery condition and charge, this should power the uGI1 with an SRL1 relay for 10-14 days.

uGI1 Operation – GPS

Q: How long does it take for the uGI1 to get GPS time lock?

It can take up to 12.5 minutes to aquire GPS time lock. Once the uGI1 gets time lock, a padlock symbol appears at the top left corner of the LCD. Ensure the uGI1 has clear view of the sky with the corTalk logo is facing up toward the sky.

Q: How often does the uGI1 sync with GPS time?

The uGI1 re-syncronizes the interrption cycle at the top of every minute and should reacquire GPS time lock every half hour. The interuption cycle time selected should be set to a number that divides evenly into 60 seconds. An example being 4 seconds on and 2 seconds off, making a cycle time of 6 seconds.

Q: Does the “OK” light turn on when the uGI1 gets time lock?

The “OK” light will be lit when the following conditions are met:

  • GPS time & position lock
  • Sufficient GPS signal level
  • Proper supply voltage to the uGI1
  • AC signal power present (if the AC Sync option is selected)

uGI1 Interruption Relays – SRL1, SRL2

Q: What is the maximum voltage and current that the SRL1 and SRL2 can interrupt?

SRL1
The acceptable switching voltage for the SRL1 is 0-90VDC or 0-70VAC.

The SRL1’s maximum switching current will vary depending on the size of the heatsink. It can interrupt:

    • Up to 25A without a heatsink
    • Up to 30A with micro heatsink
    • Up to 50A with a medium heatsink
    • Up to 60A with a large heatsink

 

SRL2
The acceptable switching voltage for the SRL2 is 0-100VDC with a maximum current of 100ADC

Q: What are the interruption relay options for the uGI1?

The SRL1 and the SRL2 smart relays are designed specifically for use with the uGI1. The uGI1 can also be connected to an external relay with the external relay interface cable.

SRL1 AC/DC Smart Relay (A1506031501)

  • Interruption switching voltage of 0-90VDC or 0-70VAC.
  • Current switching up to 60A with optional large heatsink.
  • 0.01Ω switching resistance.
  • Monitors load current & relay temperature.
  • Programmable low current alarm.

SRL2 DC Smart Relay (A1506033801)

  • Interruption switching voltage of 0-100VDC.
  • Current switching up to 100ADC.
  • 0.005Ω switching resistance.
  • Monitors load current & relay temperature.
  • Programmable low current alarm.

SRL2 Relay

Q: How much current can the uGI1 provide for an external relay?

With an external relay interface cable, the uGI can be configured to provide a relay drive voltage of 6VDC or 12VDC with a maximum relay drive current of 0.5ADC.

uGI1 Programming Configuration

Q: Can I use my mobile phone to configure the uGI1? I do not have the uGI1 USB Programming Cable for PC configuration.

Yes, you can use your mobile device to configure the uGI1 via Bluetooth.

Note: The Bluetooth connection is available only for mobile devices such as cell phones and tablets. It is not compatible with Bluetooth on a PC. For the PC based uGI1 Configuration Editor, a uGI1 USB Programming Cable must be used.

1. To connect the uGI1 to your mobile device using Bluetooth:

2. Download and install the uGI1 Configuration application to your mobile device.

3. Ensure Bluetooth is enabled on your mobile device.

4. Start the uGI1 Config application.

5. Power on the uGI1.

6. Press and hold the “SEL” button next to LCD on the uGI1 for 5 seconds to enable Bluetooth on the uGI1.

7. Ensure the Bluetooth icon is displayed on LCD of the uGI1.

uGI1 LCD with the Bluetooth indicator circled

8. Click on [CONNECT TO UGI1] in the uGI1 Config application.

9. Select the serial number of the target uGI1.

10. Enter the pairing code. The default code is “123456”.

Note: If the Bluetooth pairing code is changed and forgotten, the PC configuration application must be used to reset it.

Q: What is the difference between the “Daily Repeat With Start/Stop Schedule” and “Continuous With Start/Stop Schedule” interruption modes?

Daily Repeat With Start/Stop Schedule
This mode will start and stop interruption daily at the configured start and stop time for duration of the configured profile dates.

Continuous With Start/Stop Schedule
This mode will interrupt continuously from the start date and time to the stop date and time.

Q: What relay type should I program for the SRL?

You don’t have to program the relay type for the SRL as the uGI will automatically set the correct relay type when it detects that an SRL is attached.

Q: What is “Smart Relay Current Threshold” in the uGI1 Configuration Editor?

The SRL1 or SRL2 relays measure the current passing through them during the on phase of interruption. If the measured current during the on phase is below the programmed threshold, an entry is made in the event logger of the uGI1 and it will illuminate the orange “LO” LED. For uGI1-S (advaned) units, an alarm exception message will be transmitted to CorView to indicate the low current alarm.

Q: How do I turn on the satellite transceiver in my Advanced uGI1-S?

The satellite transceiver can be enabled or disabled by holding down the “SEL” button beside the LCD on the uGI1 for longer than 10s. It can also be enabled by checking the “Enable Transceiver” box in the PC based uGI1 Configuration Editor. The satellite signal strength indicator on the LCD can be used to confirm that satellite communications are enabled.

uGI1 LCD with the satellite indicator circled

uGI1 Troubleshooting

Q: My uGI1 is not interrupting the rectifier.

There are numerous possible causes for the uGI1 to not interrupt. Here are a few items to check:

uGI1

  • Ensure the uGI1 is powered with the acceptable input voltage: 8VDC to 52VDC or 6VAC to 36VAC.
  • Ensure the uGI1 is properly positioned to receive a GPS signal:
    • CorTalk logo on the uGI1 is facing up toward the sky.
    • The uGI1 has an unobstructed view of the sky.
  • Confirm that the uGI1 has GPS time lock and dispays the padlock icon on LCD.
  • Confirm the “OK” LED by the LCD is green.
  • Ensure the correct profile is selected.
  • Check the configuration of the selected profile:
    • The interruption mode is selected appropriately.
    • The year of the start/stop time is correct.
    • AM/PM of the start/ stop time is correct.
    • Active days are selected according to your schedule.
    • Time zone is set correctly.
    • The relay is configured properly if using an external relay.

SRL

  • Ensure the SRL is powered with the acceptable input voltage: 8VDC to 52VDC or 6VAC to 36VAC.
  • Confirm the status LED is lit green.
  • Confirm the black cables of the SRL1 are properly connected to the rectifier.
  • Confirm the yellow LED is flashing with the timing of the interruption cycle.
    Note: The current must be above the configured current threshold during the on phase for the yellow LED to be illuminated.

Q: I cannot connect to my uGI1 with my phone.

There are a few items you can check:

  • Ensure the uGI1 is powered with the acceptable input voltage: 8VDC to 52VDC or 6VAC to 36VAC.
  • Confirm the uGI1 has Bluetooth enabled by looking for the Bluetooth icon at the top right corner on the LCD.
  • Try turning the Bluetooth off and on again on your mobile device.
  • Try forgetting or unpairing the device in your mobile device’s Bluetooth setting and then reconnecting through the uGI1 app.
  • Make sure no other mobile devices are already connected to the same uGI1.
  • Try reinstalling the config app on your mobile device.

Q: Why is there a shift on the interruption waveform every minute?

The interuption cycle time should be set to a number that divides evenly into 60. An example being 4 seconds on and 2 seconds off, making a cycle time of 6 seconds. The uGI1 re-syncronizes the interruption timing at the top of every minute to maintain accuracy.

Q: The LED is flashing red on my SRL1. What does it mean?

The flashing red LED means the temperature of the relay exceeded the high limit and it will flash red until the relay temperature drops to an acceptable level. Ensure the heatsink is properly sized if the relay is over-heating.

SRL1 with fault light lit

Q: Why is my uGI1 not transmitting into CorView?

  • Confirm the uGI1 is the uGI1-S (Advanced), not uGI1-B (Basic).
  • Ensure the uGI1-S is activated on the network via the RMU list in CorView.
  • Ensure the satellite transceiver is enabled for the selected profile.
  • Ensure the uGI1-S has an unobstructed view of the sky and is positioned with CorTalk logo on the uGI1-S facing up toward the sky.

Q: I am still having issues; how can I get tech support?

Call or email our tech support team. They can be reached toll free at 1-844-689-3282 – ask for Service. They can be emailed at service1[at]mobiltex[dot]com.