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Bantam Trapezoidal Torque Amplifier Module BTM
Analog Inputs
• ±10 Vdc current reference
• Peak, continuous current & peak-time set
Analog Outputs
• Current monitor
• Current reference
Digital Inputs
• Amp Enable
• Fwd/Rev Enable (limit switches)
• Hi/Lo load inductance
Digital Outputs
• Amp OK
• Regen control
• Brake control
Feedback
• Digital Halls from brushless motors
Dimensions
• 53.3 x 45.7 x 15.2 mm
• 2.1 x 1.8 x 0.6 in
Model |
VDC |
IC |
IP |
BTM-055-20 |
12-55 |
10 |
20 |
BTM-090-10 |
20-90 |
5 |
10 |
DESCRIPTION
Bantam is a compact, DC powered analog current amplifier for
torque control of DC brush or brushless motors. It operates as
a stand-alone driver taking a ±10V input from an external controller.
Mounting to a PC board with solderless connectors facilitates lowcost,
multi-axis designs. The Amp Enable input interfaces to active LO signals
up to 24 Vdc. Another digital input switches the current-loop gain from
a high to low for load inductance compensation. Forward and Reverse
Enable inputs are provided for limit switches.
A digital output for Amp-OK indicates the amplifier’s status.
There are two other digital outputs one of which can activate an external
regenerative energy dissipator circuit and another for motor brake control.
Digital Hall feedback enables trapezoidal drive of DC brushless motors.
For driving DC brush motors, these inputs are left unconnected and the
motor connected between the U & V outputs. Protections include I2T current
limiting for peak and continuous current as well as peak time.
Short circuits between outputs or to ground and amplifier over-temperature
produce latching faults. A Development Kit is available that provides mounting
and easy connectivity for the Bantam.
Bantam R30
Analog Inputs
• ±10 Vdc current reference
• Peak, continuous current & peak-time set
Analog Outputs
• Current monitor
• Current reference
Digital Inputs
• Amp Enable
• Fwd/Rev Enable (limit switches)
• Hi/Lo load inductance
Digital Outputs
• Amp OK
• Regen control
• Brake control
Feedback
• Digital Halls from brushless motors
Dimensions
• 53.3 x 45.7 x 15.2 mm
• 2.1 x 1.8 x 0.6 in
Model |
VDC |
IC |
IP |
R30-055-20 |
12-55 |
10 |
20 |
R30-090-10 |
20-90 |
5 |
10 |
DESCRIPTION
R30 is a compact, DC powered analog current amplifier for
torque control of DC brush or brushless motors.
It operates as a standalone driver taking a ±10V input from
an external controller. Mounting to a PC board with solderless
connectors facilitates lowcost, multi-axis designs.
The Amp Enable input interfaces to active LO signals up to 24 Vdc.
Another digital input switches the current-loop gain from a high to
low for load inductance compensation.
Forward and Reverse Enable inputs are provided for limit switches.
A digital output for Amp-OK indicates the amplifier’s status.
There are two other digital outputs one of which can activate an external
regenerative energy dissipator circuit and another for motor brake control.
Digital Hall feedback enables trapezoidal drive of DC brushless motors.
For driving DC brush motors, these inputs are left unconnected and the
motor connected between the U & V outputs.
Protections include I2T current limiting for peak and continuous current as
well as peak time. Short circuits between outputs or to ground and amplifier
over-temperature produce latching faults.
RUGGEDIZED STANDARDS CONFORMANCE
Ambient Temperature Non-Operating -50ºC to 85ºC
Operating -40ºC to 70ºC
Thermal Shock Operating -40ºC to 70ºC in 1 minute
Relative Humidity Non-Operating 95% non-condensing at 60ºC
Operating 95% non-condensing at 60ºC
Vibration Operating 5 Hz to 500 Hz, up to 3.85 grms
Altitude Non-Operating -400 m to 12,200 m
Operating -400 m to 5,000 m
Shock Crash Safety 75 g peak acceleration
Operating 40 g peak acceleration
MIL-STD specifications MIL-STD- 461, 704, 810, 1275, 1399
IEC specifications IEC- 60068, 60079
DEVELOPMENT KIT
A Development Kit is available that provides
mounting and easy connectivity for the R30.