Adjusting Programmer Power Supplies

Adjusting Programmer Power Supplies

All BPM manual and automated programmers rely on the use of a single power supply, per site, to power the site up.

From time to time, it maybe necessary to adjust the PSU supply voltages, specifically if BPWin diagnostics fails or a voltage rail is out of specification.

The follow guides serves to explain how to adjust the power supplies voltage.

Due to the variations in power supplies in the field and identifation of the correct power supply for the site, the following section is split into manual and automated, with automated split into 3X and 4X series handlers.

Caution: Shock Hazard.
Please take due care when making voltage adjustments to the power supply as mains voltages in the region of 110V to 240V AC are present on this PCB.
The following should only be carried out my competent and trained staff.
We can take no liability or responsibility for and damage caused to equipment or personal.

Manual Programmers

Each single site manual programmer will have its own PSU installed.
In the case of 2, 4, 6 or 8 site programmers, then the corresponding number of PSUs will be installed.

Identify which programmer requires adjustment.

BPWin has a Power Supply test function under the Tools menu, which shows the PSU values read back from the currently selected master site.
In the case of multi site programmers, the master site number will need to be changed to the site that needs testing.

A suspect site can be on that fails voltage rails during diagnostics or shows very erratic voltage fluctuations. Look out for any voltage rail that has an Asterix (*) next to it.
Once the suspect site has been identified, power off the programmer and disconnect all cables to it.

Remove the 4 case screws, 2 front, 2 back and lift the top cover of the chassis, taking care to not strain the internal cables.

Identify the correct Power Supply to adjust.

On single site programmers this is easy as there is only one power supply installed.
On multisite programmers, simply follow the cables from the suspect site to its power supply.

At this stage, place the open programmer in such a way that it can be connected to the power cable and host PCs USB cable and so that you have safe access to the sites power supply, making sure that the top cover is stable and will not fall over.

Preparing to adjust the Power Supply.

At this stage, the programmer can now be turned on, taking care of the potential electric shock risk.

Once you have communications between BPWin and the programmer, run the Power Supply test again.

Refer to the Power Supply Adjustment

Once these are confirmed as set correctly, then power off, disconnect cable and reassemble.  Carry out one further power up, power supply and diagnostics test to verify.

 

If after this stage, you are still experiencing problems, then please submit a support request via our helpdesk, provide all the relevant information and BB files from your tests, so that we can check and advise on alternative solutions.

 

Automated Programmers

Each automated programmer will have its own PSU installed.
Even if you have an 11 site chassis with only 1, 2 or more sites installed, the E-Box will house a full set of power supplies.

Identify which programmer requires adjustment.

BPWin has a Power Supply test function under the Tools menu, which shows the PSU values read back from the currently selected master site.
In the case of multi site programmers, the master site number will need to be changed to the site that needs testing.

A suspect site can be on that fails voltage rails during diagnostics or shows very erratic voltage fluctuations. Look out for any voltage rail that has an Asterix (*) next to it. 
Once the suspect site has been identified, power off the programming sites via the switch on the front of the autohandler (4X) or completely power off in using a 3X autohandler

Identify the correct Power Supply to adjust.

There are two handler types, 3X and 4X and depending on the model, the location of the power supplies will vary.  Refer to the correct type below.

3X Handlers

You will need to remove the main, large front panel to the system to gain access to the E-Box.  The E-Box is the large silver coloured box on the bottom of the handler with all the Red and Black power cables coming out of it.

Remove all the bolts from the top cover to gain access to the power supplies.

Each power supply will be mounted and marked with the corresponding site number to aid identification.

Preparing to adjust the Power Supply.

At this stage, the system can now be turned on, taking care of the potential electric shock risk inside the E-Box.

Once you have communications between BPWin and the programmer, run the Power Supply test again.

Refer to the Power Supply Adjustment

Once these are confirmed as set correctly, then power off the system and reassemble. Carry out one further power up, power supply and diagnostics test to verify.

4X Handlers

You will need to remove the four fixing screws which hold the fascia of E-Box on the chassis, located on the left side, above the PC on the front of the system.  There will also be one smaller screw by the switches on the panel.

Each power supply will be mounted and marked with the corresponding site number to aid identification.

Preparing to adjust the Power Supply.

Carefully slide the correctly power supply out of the carrier to gain access to the blue potentiometers.

Take care as these power supplies as they are carrying mains voltage.

Refer to the Power Supply Adjustment

Once these are confirmed as set correctly, then slide the power supply back in and replace the cover.  Carry out one further power supply and diagnostics test to verify.

 

 

Power Supply Adjustment

For the old single pot Phiyong supply:
Ensure that the measurement reads 5.15VDC.
In the event that the measurement is out, adjust VR1 on the power supply to the correct value.

For the newer (large blue pots) dual pot supply:
Ensure that the measurement reads 5.15VDC and the 15v supply is at, or very close to, 16.50v.
If the supplies are not within specifications, then adjust R32 on the external power supply for the +5v. and adjust R31 to set the 15v supply.

For the newest (dual micro pots) dual pot supply:
Ensure that the measurement reads 5.15VDC and the 15v supply is at, or very close to 16.90 v.
If the supplies are not within specifications, then adjust the two micro pots on the external power supply for the +5v. and 15v supply.

Note: This supply requires a higher setting on the 15v output to prevent the +30v output from pulling too low (at least 16.80v). The recommended setting is between 16.90 and 17.00v .

 

If after this stage, you are still experiencing problems, then please submit a support request via our helpdesk, provide all the relevant information and BB files from your tests, so that we can check and advise on alternative solutions.

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