I’d agree - trying one or more manually forced auto-calibration of the load type is worth a try before resorting to Bypass 2 or rewiring from 2-wire to 3-wire BUT don’t expect too much.
To paraphrase the Fibaro instructions:
Force the calibration procedure via B-button menu (red LED indicator) or by setting Parameter 13 - Force auto-calibration to:
1 for force auto-calibration of the load without Fibaro Bypass
2 force auto-calibration of the load with Fibaro Bypass
In OpenHAB 2 (and probably 1), you can see all the parameters reported by a Z-Wave device by looking for the nodexx.xml files (my install uses /
As well as what the device reports, and the Fibaro manual, there’s also the pepper db, which has two entries for the FGD-212:
Unlike OpenHAB1 which needs you to define parameters, OpenHAB 2 uses a user-submitted database of the device XML files to auto-discover kit. Chris maintains the device list here:
OpenHAB 2 is in active development at the moment with several Z-Wave issues being worked out so I’ve not managed to experiment with the FGD-212 max/min parameters to perfect my own install yet.
Just to manage expectations, a forced auto-calibration has helped one of my Fibaro FGD-212 work better after a change of bulb type (confused the intelligent dimmer as it checked for problems) BUT repeated calibrations hasn’t changed the outcome where dimming was poor, or the load switched off immediately.
For me, a dimmer with the ‘perfect’ install of a 3-wire connection, auto-calibration, and several different brands of good dimmable LED bulbs, still gives poor remote control and dimming.
Increasing the load by mixing one incandescent bulb with LED bulbs in multi-light fittings sadly didn’t help me (old trick which worked with 2-wire X-10 devices).
Adding FGB-002 Bypass 2 units also made no difference what so ever with 3-wire power (L and N to the module) and multiple LED bulbs on the edge of the minimum 2-wire load.
Worse, switching the light on remotely via Z-Wave often results in the light starting to dim up from zero, stop, and turn off again. A second attempt to turn is usually successful but makes scripted control harder.
Local manual switching has been more reliable - the manual suggests there are different calibration parameters for local and remote control to compare and tweak although I’m currently diverted testing OpenHAB2 rather than tweaking the FGD-212.
My opinion is the additional complexity of auto-calibration, load sensing, and Z-Wave Plus (including secure commands not yet supported in OpenHAB) has gone too far with the FGD-212 when all you want is a light to turn off and on!