Data Sheet

4 KBL1xxx Motor Controller Datasheet Version 1.9 May 24, 2018
Figure 2, below, shows how to wire the controller and how to turn power On and Off.
Motor
Rotor
Sensors
VMot
PwrCtrl
SW1 Main
On/Off Switch 1A
F2
1A
Diode
>20A
Resistor
1K, 0.5W
+-
SW2
Emergency
Contactor or
Cut-off Switch
F1
U
V
W
Hall/SSI
SinCos
or Resolver
Connector
Sensors
I/O Connector
Ground
Ground
Main
Battery
Backup
Battery
Note 5
Do not Connect!
Note 1
2 etoN 3 etoN
U
VW
Note 4
FIGURE 2. Powering the Controller. Thick lines identify MANDATORY connections
Important Warning
Carefully follow the wiring instructions provided in the Power Connection section of the User
Manual. The information on this datasheet is only a summary.
Mandatory Connections
It is imperative that the controller is connected as shown in the above diagram in order to ensure a safe and
trouble-free operation. All connections shown as thick black lines line are mandatory. The controller must be
powered On/Off using switch SW1on the Power Control tab. Use a suitable high-current fuse F1 as a safety
measure to prevent damage to the wiring in case of major controller malfunction.
Emergency Switch or Contactor
The battery must be connected in permanence to the controller’s VMot terminal via a high-power emergency
switch or contactor SW2 as additional safety measure. The user must be able to deactivate the switch or con-
tactor at anytime, independently of the controller state.
Precautions and Optional Connections
Note 1: Backup battery to ensure motor operation with weak or discharged batteries, connect a second battery
to the Power Control wire/terminal via the SW1 switch.
Note 2: Use precharge 1K, 0.5W Resistor to prevent switch arcing.
Note 3: Insert a high-current diode to ensure a return path to the battery during regeneration in case the fuse
is blown.