The upgrade approach using a QSI Quantum Programmer laid out in Scott’s post is the easiest way to go for most 2 railers – both DC and DCC. It will have the advantage of addressing improved motor and lighting control issues, while updating the sound to QSI’s Q3 Emulator Technology EMD 567 sound set.
However there is an alternative route not requiring reloading the firmware if you have a DCC system and are comfortable changing a number of indexed Configuration Variables (CV’s). The same motor control CV changes QSI Solutions’ Josh Shedaker is incorporating in a firmware update file can be made by a savvy DCC user. With Josh’s permission, here is his CV fix list.
Sunset Models O-Scale FP7 Fix List
QSI Solutions 2/24/14
CV Fix List: Program these CVs on the mainline to have our verbal programming read back assist you in ensuring you’ve programmed the right CVs in the right order. Indexed CVs will be displayed whole then broken down into the individual CV49/50 values.
1: Start Voltage CV2= 24
2: RTC Min BEMF CV56.5=6 to set this, program the following CVs in the following order;
CV49=5
CV56=6
PID Parameters.
3a: Very Low Speed Proportional Gain CV56.18.0=60 to set this, program the following CVs in the following order;
CV50=0
CV49=18
CV56=60
3b: Very Low Speed Integral Gain CV56.18.1=1 to set this, program the following CVs in the following order;
CV50=1
CV56=1
3c: Very Low Speed Differential Gain CV56.18.2=150 to set this, program the following CVs in the following order;
CV50=2
CV56=150
4a: Low Speed Proportional Gain CV56.19.0=10 to set this, program the following CVs in the following order;
CV50=0
CV49=19
CV56=10
4b: Low Speed Integral Gain CV56.19.1=1 to set this, program the following CVs in the following order;
CV50=1
CV56=1
4c: Low Speed Differential Gain CV56.19.2=35 to set this, program the following CVs in the following order;
CV50=2
CV56=35
5a: Medium Speed Proportional Gain CV56.20.0=7 to set this, program the following CVs in the following order;
CV50=0
CV49=20
CV56=7
5b: Medium Speed Integral Gain CV56.20.1=1 to set this, program the following CVs in the following order;
CV50=1
CV56=1
5c: Medium Speed Differential Gain CV56.20.2=25 to set this, program the following CVs in the following order;
CV50=2
CV56=25
6a: High Speed Proportional Gain CV56.21.0=7 to set this, program the following CVs in the following order;
CV50=0
CV49=21
CV56=7
6b: High Speed Integral Gain CV56.21.1=1 to set this, program the following CVs in the following order;
CV50=1
CV56=1
6c: High Speed Differential Gain CV56.21.2=15 to set this, program the following CVs in the following order;
CV50=2
CV56=15
Speed Calibration Settings (optional, but recommended)
7: SMPH/BEMF Ratio CV56.7.0-1= 850 to set this, program the following CVs in the following order;
CV50=0
CV49=7
CV56=82
Then:
CV50=1
CV56=3
8: BEMF Offset CV56.8=33 to set this, program the following CVs in the following order;
CV49=8
CV56=33
Quoting Josh “Successful programming of these CVs will dramatically improve the FP7’s operation and, if speed calibrated, will cause speed dependent effects like automatic brake squeal, transitions, and Doppler Effect to work correctly based on locomotive scale miles per hour”. I want to thank Josh and QSI Solutions for sharing the FP7 CV “fixes”. Folks should know his company was not responsible for the as delivered configuration/settings on the Sunset 3rd Rail FP7.
I’m a DCC user and could make the CV changes using my NCE system. But since I want the new Emulation Technology EMD 567 sounds I’m going to wait for Josh to put his FP7 Q3 file on the QSI Solutions web site and go the firmware upgrade route using a Quantum Programmer.
Ed Rappe