TMCM-1181 V3.0 Hardware Manual (Rev. 0.90 / 2015-JUL-10)
8
3.3.1 Power Connector
A 2pin JST VH series 3.96mm pitch connector is used for power supply.
Pin
1
2
Label
GND
VCC
Direction
Power (GND)
Power (+24V)
Description
System and signal ground
Power supply input
2
1
Table 3.1 Connector for power supply
CAUTION
Always keep the power supply voltage below the upper limit of 28V!
Otherwise the driver electronics will be seriously damaged. Especially, when the selected operating
voltage is near the upper limit a regulated power supply is highly recommended.
3.3.1.1 Power Supply
When using supply voltages near the upper limit, a regulated power supply is mandatory. The board
includes around 2000µF / 35V of filtering capacitors. Nevertheless, especially at higher motor current
settings it might be necessary to add additional filtering capacitors externally. Power supply ripple due to
chopper operation of the driver should be kept at a maximum of a few 100mV.
It is important that the upper supply voltage limit is never exceeded during operation as this might
seriously damage the driver stage. In this context special care has to be taken with regard to motor
energy being fed back into supply voltage line when the motor works as generator. This might happen
during de-acceleration or brake conditions especially when the motor is moving a larger mass (high
inertia). Additional capacitors which are able to absorb energy might help here. Beyond that suppressor
diodes or even brake resistors might be a solution.
Guidelines for power supply:
keep power supply cables as short as possible
use large diameters for power supply cables
add additional filter capacitors near the motor driver unit especially if the distance to the power
supply is large (i.e. more than 2-3m)
Note: there is no protection against reverse polarity integrated on the board.
3.3.2 Motor Connector
A 4pin JST VH series 3.96mm pitch connector is used for motor connection.
Pin
1
2
3
4
Label
A1
A2
B1
B2
Direction
Output
Output
Output
Output
Description
Pin 1 of motor coil A
Pin 2 of motor coil A
Pin 1 of motor coil B
Pin 2 of motor coil B
4
1
Table 3.2: Motor connector
www.trinamic.com
TRINAMIC [ TRINAMIC MOTION CONTROL GMBH & CO. KG. ]
