User Manual

Table Of Contents
Connecting Power and Motors to the Controller
24 Advanced Digital Motor Controller User Manual V2.0, July 8, 2019
Motor
Hall
Sensors
HA/HB/HC
GND/+5V
VMot/Red
PwrCtrl/Yellow
SW1 Main
On/Off Switch 1A
F2
1A
Diode
>20A
Resistor
1K, 0.5W
+-
SW2
Emergency
Contactor or
Cut-off Switch
F1
White/U
Green/V
Blue/W
Hall sensor
Connector
Earth Tab
I/O Connector
Ground/Black
Ground/Black
Main
Battery
Backup
Battery
Note 5
Note 6
Do not Connect!
Note 1
Note 3
Note 2
U
VW
Note 4
FIGURE 1-2. Brushless DC Controller power wiring diagram
Mandatory Connections
It is imperative that the controller is connected as shown in the wiring diagram provided in
the datasheet in order to ensure safe and trouble-free operation. All connections shown as
thick black lines are mandatory.
Connect the thick black wire(s) or the ground terminal to the minus (-) terminal of
the battery that will be used to power the motors. Connect the thick red wire(s) or
VMot terminal to the plus (+) terminal of the battery. The motor battery may be of
12V up to the maximum voltage specified in the controller model datasheet.
The controller must be powered On/Off using switch SW1on the Power Control
wire/terminal. Grounding this line powers Off the controller. Floating or pulling this
line to a voltage will power On the controller. (SW1 is a common SPDT 1 Amp or
more switch).
Use a suitable high-current fuse F1 as a safety measure to prevent damage to the
wiring in case of a major controller malfunction. (Littlefuse ATO or MAXI series).
The battery must be connected in permanence to the controllers Red wire(s) or
VMot terminal via a high-power emergency switch SW2 as an additional safety
measure. Partially discharged batteries may not blow the fuse, while still having
enough power left to cause a fire. Leave the switch SW2 closed at all times and
open only in case of an emergency. Use the main On/Off switch SW1 for normal
operation. This will prolong the life of SW2, which is subject to arcing when open-
ing under high current with the consequent danger of contact welding.
If installing in an electric vehicle equipped with a Key Switch where SW2 is a con-
tactor, and the key switch energizes the SW2 coil, then implement SW1 as a relay.
Connect the Key Switch to both coils of SW1 and SW2 so cutting off the power to
the vehicle by the key switch and SW2 will set the main switch SW1 in the OFF
position as well.