More actions
| PM281X: Switching between 110V and 220V | |
|---|---|
| Device | PM281X |
| Affects part(s) | |
| Needs equipment | Screwdriver |
| Difficulty | ◉◌◌◌ Easy |
| Type | Teardown |
This article is a stub. You can help Repair Wiki grow by expanding it
Problem description
If you have bought a Philips/Fluke PM2811, PM2812, or PM2813 power supply from a country who's electric grid runs at a different voltage, you may want to modify your power supply, to match your electrical grid (instead of using a transformer).
Solution
These power supplies are internally configured to one of the following ranges:
- 94V .. 130V (a.k.a. nominally 110V)
- 190V .. 255V (a.k.a. nominally 220V)
To switch the voltage of the power supply between 110V/220V configurations you have to take the following actions:
- Move the black jumper wire on the "Input Module" PCB, to the correct jumper. (this is marked via silkscreen on the PCB)
- (Note: the service manual forgets to mention this)
- The blue (bl) wire of the cable loom DB1 must be connected to
- X4106 for 110V operation
- X4102 for 220V operation
- You can see the location of these pins on page 63 of the service manual [1]
- The fuses must be replaced. The required fuse current is different for each voltage configuration, and also depends on the number of modules the power supply is configured with
- Note that number of modules is not the same as number of outputs. Some PM2812 have 2 power modules, while some have 3.
- Please write on the back of the unit the current supported voltage.
Fuses
| Fuses 2x: | 1 Module PM2811 |
2 Modules PM2812/[0,1,2] |
3 Modules PM2812/[3,4]; PM2813 |
|---|---|---|---|
| 110V | 2.5AT | 4AT | 6.3AT |
| 220V | 1.25AT | 2.5AT | 3AT |