Parameter Dictionary

This reference documents the configurable parameters for ASI BAC motor controllers running firmware 6.026. The controller has over 2,300 addressable parameters organized by function.

Advanced Configuration

Modifying parameters incorrectly can damage the controller, motor, or battery. Only trained technicians should adjust these values using BACDoor3 software.

System Configuration (Addresses 0-68)

Hardware Ratings

Address	Parameter	Description	Unit
0	Output_Current_Rating	Drive maximum phase current rating	Amps
1	Input_Voltage_Rating	Drive maximum input voltage rating	Volts
2	Switching_Frequency	3-phase bridge switching frequency	Hertz
3	Dead_Time	MOSFET shootthrough prevention interval	ns

Communication Settings

Address	Parameter	Description	Unit
4	Baud_Rate	Port 1 communications symbol transfer rate	Baud
5	Slave_ID	Multi-drop slave identification	Node #
56	CAN_Baud_Rate	CAN communication baud rate	kbps
57	CAN_ID	CAN device identifier	—
58	Communications_Configuration_Vector	Communications config bit field (16-bit)	—
64	Port2_Baud_Rate	Port 2 communications baud rate	Baud
65	Port2_Slave_ID	Port 2 multi-drop slave ID	Node #

Regulator Gains

Address	Parameter	Description	Unit
7	Current_Regulator_Kp	Current regulator proportional gain	—
8	Current_Regulator_Ki	Current regulator integral gain	—
9	Speed_Regulator_Kp	Speed regulator proportional gain	—
10	Speed_Regulator_Ki	Speed regulator integral gain	—
51	Current_Regulator_Bandwidth	Current regulation control loop bandwidth	radians
52	PLL_Bandwidth	Phase-lock loop bandwidth	radians
53	PLL_Damping	Phase-lock loop damping factor	—
54	Pll_Kp	PLL proportional gain (calculated)	—
55	Pll_Ki	PLL integral gain (calculated)	—

Speed Regulator Mode

Address	Parameter	Description	Values
11	Speed_Regulator_Mode	Control mode selection	0=Speed, 1=Torque, 2=Torque with speed limiting

Feedback Gains

Address	Parameter	Description	Unit
14	Phase_A_Current_Gain	Phase A ADC feedback gain	Amps/Volt
15	Voltage_Gain	Voltage feedback gain (Vdc, Vphase)	Volts/Volt
16	Phase_C_Current_Gain	Phase C ADC feedback gain	Amps/Volt
17	ain_0to5_gain	0-5V analog input feedback gain	Volts/Volt
18	ain_rail_gain	Internal rail voltage measurement gain	Volts/Volt
19	BMS_Gain	0-10V input feedback gain (BMS)	Volts/Volt

Filter Settings

Address	Parameter	Description	Unit
20	DC_Voltage_Filter_Shift	DC voltage filter shift value	bits
21	Temperature_Filter_Shift	Temperature measurement filter shift	bits
22	DQ_Axis_Filter_Shift	DQ axis low-pass filter shift	bits
23	Flux_Filter_Shift	Flux filter shift value	bits
24	Flux_Hpf_Shift	Flux high-pass filter shift	bits
25	Flux_Frequency_Filter_Shift	Flux frequency filter shift	bits
26	Voltage_Feedback_Filter_Cutoff_Frequency	Voltage feedback filter frequency	Hertz

Overcurrent Protection

Address	Parameter	Description	Unit
27	Averaged_Over_Current_Trip_Threshold	Averaged phase current trip threshold	Amps
28	Averaged_Over_Current_Trip_Sample_Length	Phase current sample count	samples
29	Instantaneous_Over_Current_Trip_Threshold	Instantaneous current trip threshold	Amps
30	Phase_Current_RMS_Filter_Shift	Phase current RMS filter shift	counts

Timeout Configuration

Address	Parameter	Description	Unit
32	Command_Timeout_Threshold	Communication dropout detection timeout	ms
49	Average_Command_Timeout_Threshold	Average communication timeout interval	ms
50	Remote_Comm_Loss_Braking_Current_Limit	Remote mode deceleration current limit	pu
255	CAN_Sync_Loss_Timeout	CAN sync loss timeout	ms

Controller Temperature

Address	Parameter	Description	Unit
34	Heatsink_Over_Temperature_Trip_Threshold	Controller thermal fault threshold	°C
35	Controller_Foldback_Starting_Temperature	Controller foldback temperature start	°C
36	Controller_Foldback_Ending_Temperature	Controller foldback ending temperature	°C
37-42	Controller_Temperature_Feedback_[0-125]_C	Temperature calibration points (6 values)	Volts

Display Configuration

Address	Parameter	Description	Values
66	Display_Protocol	Display protocol selection	0-12, 19-20
76	Display_Protocol_2	Secondary display protocol	0-20
112	Display_Language	Display language	0=Dutch-km, 1=German-km, 2-4=English variants
113	POD_LED_Brightness	LED brightness level	1-20

Security

Address	Parameter	Description	Unit
45	Antitheft_Enable_Time	Anti-theft feature activation delay	ms
62	Flash_Parameter_Read_Access_Code_1	Flash parameter read access code	—

POST Test Limits

Address	Parameter	Description	Unit
47	POST_Static_Voltage_Test_Limits	Open circuit test voltage bounds	V
48	POST_Dynamic_Voltage_Test_Limits	High/low side test voltage window	V

Motor Parameters (Addresses 69-138)

Motor Ratings

Address	Parameter	Description	Unit
70	Rated_System_Voltage	Nominal battery voltage rating	Volts
71	Rated_Motor_Current	Nameplate motor peak phase current	Amps
72	Rated_Motor_Speed	Nameplate no-load motor RPM	RPM
73	Rated_Motor_Power_Race_Mode_Throttle	Race mode throttle power limit	Watts
121	Rated_Motor_Power_Street_Mode_PAS	Street mode PAS power limit	Watts
122	Rated_Motor_Power_Race_Mode_PAS	Race mode PAS power limit	Watts
131	Rated_Motor_Power_Street_Mode_Throttle	Street mode throttle power limit	Watts

Motor Electrical Characteristics

Address	Parameter	Description	Unit
69	Lm	Motor magnetizing inductance (optional)	µHenries
74	Ls	Motor stator phase-to-neutral inductance	µHenries
75	Rs	Motor stator phase-to-neutral resistance	mΩ
78	Pole_Pairs	Motor electrical pole pair count	—

Position Sensor Configuration

Address	Parameter	Description	Values
77	Motor_Position_Sensor_Type	Sensor type	0=Hall, 1=Hall start+sensorless, 2=Sensorless, 3=Sine-Cos
79	Hall_Offset	Hall sensor offset angle	degrees
80-87	Hall_Sector_[0-7]	Hall sequence to sector mapping	-1 to 7
88	Hall_Interpolation_Start_Frequency	Hall interpolation hysteresis start	Hertz
89	Hall_Interpolation_Stop_Frequency	Hall interpolation hysteresis stop	Hertz
128	Hall_Interpolation_Transitions	Hall transitions before interpolation	—
63	Hall_Stall_Fault_Time	Hall stall detection timeout	ms

Motor Temperature

Address	Parameter	Description	Unit
90	Motor_Over_Temperature_Trip_Threshold	Motor thermal fault temperature	°C
91	Motor_Foldback_Starting_Temperature	Motor foldback temperature start	°C
92	Motor_Foldback_Ending_Temperature	Motor foldback temperature end	°C
93-98	Temperature_Feedback_[0-125]_C	Motor temp calibration points (6 values)	Volts
137	Motor_Temperature_Source	Temperature sensor input	0=Brake2, 1=Brake1, 2=ABMS, 3=Throttle

I²T Overload Protection

Address	Parameter	Description	Unit
99	Overload_Continuous_Current	Continuous current rating (% nameplate)	%
100	Overload_Heating_Current	Heating current rate (% nameplate)	%
101	Overload_Heating_Time	Time to accumulate 100% heat	s
102	Overload_Cooling_Current	Cooling current rate (% nameplate)	%
103	Overload_Cooling_Time	Time to dissipate 100% heat	s
104	Overload_Foldback_Start	I²T foldback starting percentage	%
105	Overload_Foldback_End	I²T foldback ending percentage	%

Sensorless Configuration

Address	Parameter	Description	Unit
106	Sensorless_Open_Loop_Starting_Current	Sensorless AC injection current limit	pu A
107	Sensorless_Open_Loop_Injection_Current_Ramp_Time	Injection current ramp duration	ms
108	Sensorless_Closed_Loop_Enable_Frequency	Open-to-closed-loop transition frequency	Hertz
109	Sensorless_Open_Loop_Freq_Ramp_Time	DC-to-target frequency ramp duration	ms
110	Sensorless_Open_Loop_DC_Current_Hold_Time	DC current hold duration at startup	ms
132-134	Pedalec_Sensorless_*	Pedalec-specific sensorless parameters	—

Field Weakening

Address	Parameter	Description	Unit
129	Maximum_Field_Weakening_Current	Field weakening automatic limit	%

Motor Features Bit Field

Address	Parameter	Description
127	Motor_Features	Motor feature configuration bit field (16-bit)

Motor_Features Bit Definitions:

Bit	Function
0	Reserved
1	Reserved
2	Reserved
3	Disable motor I²T / Enable battery I²T
4	Reserved
5	Motor temp sensor enable
6-15	Reserved

Battery Configuration (Addresses 141-156)

Voltage Foldbacks

Address	Parameter	Description	Unit
141	Low_Battery_Voltage_Foldback_Start_Voltage	Low voltage foldback start	%
142	Low_Battery_Voltage_Foldback_End_Voltage	Low voltage foldback end	%
194	High_Battery_Foldback_Starting_Voltage	High voltage foldback start (regen)	%
195	High_Battery_Foldback_End_Voltage	High voltage foldback end (regen)	%

Voltage Protection Thresholds

Address	Parameter	Description	Unit
147	Instantaneous_Over_Voltage_Threshold	Fast over-voltage fault threshold	%
148	Instantaneous_Under_Voltage_Threshold	Fast under-voltage fault threshold	%
149	Average_Over_Voltage_Threshold	Filtered over-voltage fault threshold	%
150	Average_Under_Voltage_Threshold	Filtered under-voltage fault threshold	%
33	DC_Voltage_Trip_Clear_Hysteresis	Over-voltage fault clear hysteresis	%

SOC Foldbacks

Address	Parameter	Description	Unit
145	Low_Battery_SOC_Foldback_Start	Low SOC foldback start	% SOC
146	Low_Battery_SOC_Foldback_End	Low SOC foldback end	% SOC
135	Battery_Regen_High_SOC_Foldback_Start	High SOC regen foldback start	% SOC
136	Battery_Regen_High_SOC_Foldback_End	High SOC regen foldback end	% SOC
196	Low_Battery_SOC_Alarm_Threshold	Low SOC alarm threshold	%

Temperature Foldbacks

Address	Parameter	Description	Unit
143	Cold_Battery_Foldback_Start_Temperature	Cold battery foldback start	°C
144	Cold_Battery_Foldback_End_Temperature	Cold battery foldback end	°C

Current Limits

Address	Parameter	Description	Unit
155	Battery_Current_Limit	Motoring battery current limit	%
156	Regen_Battery_Current_Limit	Regen battery current limit	%

BMS Integration

Address	Parameter	Description	Values
59	Battery_Resistance	Battery internal resistance	mΩ
197	Voltage_Model_SOC_Gain	SOC change per battery voltage change	%
198	Voltage_Model_SOC_Offset	SOC offset value	%
209	Battery_Management_Interface_Type	BMS interface type	0=none, 1=Voltage model, 2=ABMS, 5=Remote, 7-8=Vanguard, 9=CTS, 10=Ryvid

Battery Range Display

Address	Parameter	Description	Unit
111	Battery_Upper_Range	Max battery range (minimum assist)	km
120	Battery_Assist_Lower_Range	Min battery range (maximum assist)	km

Throttle & Brake Configuration (Addresses 151-254)

Throttle Calibration

Address	Parameter	Description	Unit
213	Throttle_Full_Voltage	Throttle full-open calibration voltage	Volts
214	Throttle_Off_Voltage	Throttle full-closed calibration voltage	Volts
151	Throttle_Deadband_Threshold	Throttle off/full deadband voltage	Volts
152	Throttle_Fault_Range	Throttle fault detection voltage range	Volts
247	Throttle_Sensor_Source	Throttle input source	0=Throttle, 1=Brake1, 2=Brake2, 3=CAN, 5=Remote, 6=ABMS
244	Digital_Throttle_Sensor_Source	Redundant throttle digital input	0-5
117	Throttle_Sensitivity_Motor_Speed	Motor speed aggressiveness change point	pu

Brake Configuration

Address	Parameter	Description	Unit
215	Analog_Brake_Full_Voltage	Analog brake maximum calibration voltage	Volts
216	Analog_Brake_Off_Voltage	Analog brake minimum calibration voltage	Volts
248	Cutoff_Brake_Sensor_Source	Cutoff brake input source	0=Brake1, 1=Brake2, 2=PFS, 3=Cruise, 4=Remote
249	Regen_Brake_Source	Regen brake input source	0=Brake2, 1=Brake1, 2=Remote, 3=ASI, 4=Bi-throttle, 5=Throttle, 6=ABMS

Braking Parameters

Address	Parameter	Description	Unit
154	Maximum_Braking_Torque	Maximum braking torque limit	%
177	Engine_Braking_Torque	Engine braking torque (% of max)	%
206	Regen_Brake_Speed	Minimum regen braking speed	km/hr

Torque Ramps

Address	Parameter	Description	Unit
220	Positive_Motoring_Torque_Ramp	Motoring acceleration time	ms
221	Negative_Motoring_Torque_Ramp	Motoring deceleration time	ms
222	Pedalec_Positive_Motoring_Torque_Ramp	Pedalec acceleration time	ms
223	Pedalec_Negative_Motoring_Torque_Ramp	Pedalec deceleration time	ms
224	Positive_Braking_Torque_Ramp	Braking ramp-up time	ms
225	Negative_Braking_Torque_Ramp	Braking ramp-down time	ms
116	Speed_Mode_Positive_Acceleration_Ramp	Acceleration ramp rate	rpm/s pu
118	Speed_Mode_Regen_Ramp	Regen braking ramp rate	rpm/s pu

Pedal Sensor Configuration (Addresses 175-235)

Pedal Sensor Type

Address	Parameter	Description	Values
211	Pedal_Sensor_Type	Sensor type	0=Single Hall, 1=Dual Hall, 2=FAG, 3=Quadrature torque, 4=Quadrature speed, 5=Axle torque, 6-9=Various

Pedal Timing

Address	Parameter	Description	Unit
232	Pedalec_Minimum_Timeout	Minimum pedal inactivity timeout	ms
233	Pedalec_Maximum_Timeout	Maximum pedal inactivity timeout	ms
234	Pedal_Speed_Sensor_Pulses_Per_Revolution	Pedal sensor pulses per revolution	ppr
235	Pedal_Sense_Delay	Pedal activity pulse threshold	counts

Torque Sensor

Address	Parameter	Description	Unit
182	Torque_Sensor_Offset	Pedal torque sensor offset voltage	Volts
183	Torque_Sensor_Gain	Sensor voltage to torque conversion	Nm/Volt
242	Torque_Sensor_Voltage_Source	Torque sensor input	0=Throttle, 1=Brake1, 2=Brake2, 3=CAN, 5=Network, 6=10V BMS
199-201	Axle_Torque_Sensor_[1-3]	Torque sensor gain multipliers	pu

Pedalec Configuration

Address	Parameter	Description	Unit
175	Pedal_Speed_Map_Offset	Zero pedal RPM speed setpoint	pu
176	Pedal_Speed_Map_End	Full pedal RPM speed endpoint	RPM
178	Pedalec_Torque_Symmetry	Torque symmetry mode	0=1-cycle, 1=half-cycle, 2=quarter, 3=instantaneous
179	Pedalec_Power_Gain	Pedal torque to throttle scaling factor	G
180	Pedalec_Initial_Torque	Initial torque compensation value	Nm
181	Pedalec_Deadband_Torque	Pedal form correction negative saturation	Nm

Assist Levels (Addresses 217-251)

Assist Level Voltage

Address	Parameter	Description	Unit
217	Assist_High_Voltage_Reading	High assist level voltage reading	Volts
218	Assist_Low_Voltage_Reading	Low assist level voltage reading	Volts

Assist Level Configuration

Address	Parameter	Description	Unit
219	Assist_Gain_1	Lowest assist level power fraction	pu
241	Assist_Speed_1	Lowest assist level speed fraction	pu
245	Assist_Gain_2	Intermediate assist level power	pu
246	Assist_Speed_2	Intermediate assist level speed	pu
250	Assist_Gain_3	Single-switch assist level 3 power	pu
251	Assist_Speed_3	Single-switch assist level 3 speed	pu
253	Assist_Gain_Walk	Walk mode power fraction	pu

Assist Mode Source

Address	Parameter	Description	Values
210	Assist_Mode_Source	Assist mode input source	0-11
228	Assist_Cut_Out_Distance	Post-pedal assist distance limit	m

Speed Limits & Vehicle Parameters (Addresses 226-236)

Vehicle Configuration

Address	Parameter	Description	Unit
226	Gear_Ratio	Motor-to-wheel revolution ratio	N:1
227	Wheel_Diameter	Wheel size measurement	mm
231	Wheel_Speed_Sensor_Pulses_Per_Revolution	Wheel sensor pulses per revolution	ppr
193	Wheel_Speed_Sensor_Source	Wheel speed sensor input	0=Cruise, 1=Brake2, 2=Hall A, 3=Dual, 4=Brake1

Speed Limits

Address	Parameter	Description	Unit
229	Vehicle_Maximum_Speed_Race_Mode_Throttle	Race throttle speed limit	km/hr
236	Vehicle_Maximum_Speed_Street_Mode_Throttle	Street throttle speed limit	km/hr
123	Vehicle_Maximum_Speed_Street_Mode_PAS	Street mode PAS speed limit	km/hr
124	Vehicle_Maximum_Speed_Race_Mode_PAS	Race mode PAS speed limit	km/hr
230	Vehicle_Jog_Speed	Walk mode and reverse speed limit	km/hr
252	Vehicle_Jog_Speed_2	Boost mode speed limit	km/hr

Rolling Start

Address	Parameter	Description	Unit
202-204	Rolling_Start_Speed_[1-3]	Rolling start speed thresholds	km/hr
205	Rolling_Start_Speed	Rolling start speed threshold	km/hr

Power Map (Addresses 157-172)

Power Setpoints

Address	Parameter	Description	Unit
157-164	Power_Map_Watt_Setpoint_[1-8]	Power map wattage setpoints (8 values)	%
165-172	Power_Map_Speed_Setpoint_[1-8]	Power map speed setpoints (8 values)	%

Features Bit Fields (Addresses 174, 212)

Features Bit Field (Address 212)

Bit	Function
0	Cutout brake enable
1	Reverse enable
2	Cruise control enable
3	Walk mode enable
4	Regen braking enable
5	Motor temp sensor enable
6	Throttle enable
7	Speed limit enable
8	Alternate power enable
9	Pedal sensor enable
10	E-bike display enable
11	Speed sensor enable
12	Analog brake enable
13	Engine braking enable
14	Anti-theft enable
15	Reserved

Features_2 Bit Field (Address 174)

Bit	Function
0	Reserved
1	Reserved
2	Reserved
3	Plug braking enable
4-15	Reserved

Control Command Source (Address 208)

Address	Parameter	Description	Values
208	Control_Command_Source	Command source selection	0=Remote, 1=Throttle, 2=Pedal, 3=BB torque, 4=Throttle OR pedal, 5=TMM4

Datalog Configuration (Addresses 184-192)

Address	Parameter	Description	Unit
184-187	Datalog_Channel_[1-4]_Select	Datalog channel parameter selection	—
188	Datalog_Trigger_Level	Oscilloscope trigger level	—
189	Datalog_Trigger_Mask	Datalog trigger bit mask	—
190	Datalog_Hold_Off	Pre-trigger sample count	—
191	Datalog_Timebase	ISRs per sample	—
192	Datalog_Trigger_Mode	Trigger mode	0=rising, 1=falling, 2=equal, 3=not equal

Read-Only Status Parameters (Addresses 256-434)

Controller Status

Address	Parameter	Description	Values/Unit
256	Software_Version	Firmware revision level	—
257	Controller_Status	Operating state	0=Pre-Op, 1=Idle, 2=Post-Op, 3=Run, 4=Fault
258	Faults	Active fault bit field (16-bit)	—
277	Warnings	Active warning bit field	—

Temperature Readings

Address	Parameter	Description	Unit
259	Powerboard_Temperature	Heatsink/baseplate temperature	°C
261	Motor_Temperature	Current motor temperature	°C

Electrical Measurements

Address	Parameter	Description	Unit
262	Motor_Current	Motor peak phase current	Amps
263	Motor_RPM	Current motor speed	RPM
264	Percent_Of_Rated_RPM	Motor speed as % of nameplate	%
265	Battery_Voltage	Measured battery voltage	Volts
266	Battery_Current	Estimated battery current	Amps
267	Battery_State_Of_Charge	Remaining battery capacity	%
268	Battery_Power	Calculated battery power output	Watts

Vehicle Status

Address	Parameter	Description	Unit
260	Vehicle_Speed	Calculated vehicle speed	km/hr

POST Test Results

Address	Parameter	Description	Unit
285-287	Phase_[A/B/C]_Voltage	Phase voltage measurements	V
300-305	POST_[High/Low]Voltage[U/V/W]	POST voltage measurements	V
306-308	Phase_[U/V/W]_POST_Reading	POST phase readings	V

Fault Bit Definitions (Address 258)

Bit	Fault	Flash Code	Description
0	Slow Over Voltage	1-1	Filtered battery voltage exceeded threshold >1s
1	Phase Overcurrent	1-2	Motor phase current exceeded threshold
2	Reserved	—	—
3	Reserved	—	—
4	Controller Overtemp	1-5	Controller temperature exceeded limits
5	Hall Sequence Error	1-6	Invalid Hall sensor sequence
6	Slow Under Voltage	1-7	Battery voltage below threshold >1s
7	Reserved	—	—
8	Network Timeout	2-1	Network communication timeout
9	Reserved	—	—
10	Reserved	—	—
11	Reserved	—	—
12	Fast Over Voltage	—	Instantaneous voltage spike
13	Reserved	—	—
14	Reserved	—	—
15	Fast Under Voltage	—	Instantaneous voltage dip

Warning Bit Definitions (Address 277)

Bit	Warning	Description
2	Hall Stall	Motor stall detected
7	Low Battery Voltage	Voltage foldback active
8	High Battery Voltage	Regen foldback active

CANopen Configuration (Addresses 1792-2299)

The controller supports extensive CANopen PDO mapping. Key address ranges:

Range	Function
1792-1823	RPDO mapping indices
1824-1855	RPDO COBIDs
1856-1887	RPDO transmission types
1888-1919	TPDO mapping indices
1920-1951	TPDO COBIDs
1952-1983	TPDO transmission types

Manufacturing Data (Addresses 2026-2047)

Address	Parameter	Description
2026-2031	Customer_Parameter_[1-6]	Customer-specific parameters
2032-2037	Test_Station_[1-6]	Manufacturing test records
2038-2043	Serial_Number_[1-6]	Device serial number
2044-2047	Part_Number_[1-4]	Device part number

Notes

Full Dictionary

This reference covers the most commonly used parameters. The full dictionary contains over 2,300 parameters. Contact ASI support for the complete parameter dictionary document.

Firmware Version

Parameter availability and behavior may vary by firmware version. This dictionary is based on firmware 6.026.

Next Steps

Use Software Tools to read and modify parameters
Review Protection Systems for fault handling
See Technical Q&A for configuration guidance

Parameter Dictionary

Advanced Configuration

Full Dictionary

Firmware Version

Related Articles

Battery Configuration

Braking Systems

Motor Setup