Javier, a fellow FZ94 owner in the USA, has decided he also wants to add the Fuji PXG4 PID to his roaster,
as described in a recent blog.
He is ordering the exact same type of PID from Fuji in the US (mine came from the European Fuji HQ in France) and he requested some pictures of the way mine is placed / connected.
I post these pictures below, so others may also benefit. Javier was, to my knowledge, the first to upgrade the communication of his FZ94 to completely work with Artisan the way Marko and I have posted on the Artisan blog and on this blog. So it has been proven to work: study these blogs, execute as specified, and get roasting.
Javier asked Tije to make a dual-probe
Bean Trier probe device for his FZ94 as posted before.
The USB of the PXG4 goes into one of the USB ports of my laptop, just as the USB of the MODBUS out of the FZ94 goes into the other USB port of my laptop.
Marko Luther managed to expand
Artisan to facilitate working with two MODBUS units at the same time, so on one end all bi-directional communication is done with the three PIDs and the two frequency drives of the roaster and on the other end, at the same time and incorporated in one and the same screen,
Artisan is communicating in two directions (receiving information and issuing commands) with the PXG4 unit.
The datasheet of the Crydom SSRs is available
on the Crydom site and also
on a temp folder of my own site.
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| The PXG4 in its own box sitting besides the FZ94 |
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| Left to right: BT probe connector, 230V socket, cables to SSRs |
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| Cables (red/black) to SSRs |
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| On the elements, the thick blue cables are left alone. The three red power cables coming from the 'lower deck' for are each first going into their own PID and from it to their appointed element, here in a white cable with red 'sock' on. |
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| Three SSRs on a cooling fin block. The red/black cable from the PXG4 goes into every single SSR of the set of 3. The red power cable of element 1 goes into its SSR and the white cable goes out from the other connector, to element 1, same for 2 and 3. |
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| Element 3. |
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| Red cables labeled to avoid any confusion. The existing mechanical relays are left untouched and they remain in use, so if the Drum Temp gets too high, this relay will absolutely switch off the elements regardless of the PXG4. |
Tije sketching for construction of the SSR cooling fin block and the custom made Trier Probe device:
For the probe in the Bean Trier device, the designated probe (in single pair wire) version has TCDirect order number
12-K-120-125-3,0-2I- 3P2L-2m A30KX with description (in Dutch from the
Dutch branch of TCDirect):
Thermokoppel K - L=120MM Dia: 3.0 - Geïsoleerd meetpunt - Overgangshuls: L=31MM Dia: 6.1 - 2Mtr PVC aansluitkabel.
For the Duplex version (one pair or wires out for the PXG4 PID and one pair for the FZ94 BT PID with a toggle switch option) this would be:
12-K-120-125-3,0-2ID- 3P4CL-2m A30KX plus descriptor
Thermokoppel K - Duplex - L=120MM Dia: 3.0 - Geïsoleerd meetpunt - Overgangshuls: L=29MM Dia: 12,0 - 2Mtr PVC aansluitkabel.
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