Anaheim Stepper MBC10101AC Users Guide

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MBC10101 AC
Bipolar Microstep Driver
User’s Guide
910 East Orangefair Lane, Anaheim, CA 92801
e-mail: [email protected](714) 992-6990  fax: (714) 992-0471
website: www.anaheimautomation.com
ANAHEIM AUTOMATION, INC 
						

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MBC10101 AC Microstep Driver Features
•  Size (5.475L x 4.000W x 2.150H)
•  Output Current 10.0 Amps Peak
•  Built in short circuit and mis-wire shut down
•  Fixed Step Resolution of 2000 steps per revolution
•  No Minimum Inductance
•  Optical Isolation of Control Inputs
•  Motor ON/OFF input
Introduction
The MBC10101 AC Microstep Motor Driver has an output current capability of 1.5 Amps minimum to 10.0
Amps maximum (Peak Rating). The MBC10101 AC driver operates from a 20-60 AC Volts. The inputs are
optically isolated with a minimum sourcing of 1.0 mA per input (+3.5VDC minimum to +8.6VDC maxi-
mum). The clock input is set to receive either positive or negative edge clocks with a maximum frequency
of 100KHz. The MBC10101 AC driver offers direction control, motor current ON/OFF capabilities, and built
in short circuit and mis-wire shutdown. The Reduce Current Enabled automatically reduces motor current
to 50% of set value after the last step is made. The driver has built-in features to indicate power on (Green
LED) and Clocks being received (Yellow LED). The MBC10101 AC has a step resolution of 2000 steps per
revolution and the bipolar drive configuration handles 4, 6, and 8 lead motors.
Optically Isolated Input Pin Descriptions
The inputs on the MBC10101 AC are optically isolated with the anode (+) and cathode (-) both brought out
to the user.  With no current going through the opto-diode the input is considered high. To enable the input
a minimum of 1.0 mA needs to be sourced or sinked through the opto-diode. This is done simply by
placing a voltage of +3.5 to +8.6 VDC across the two inputs of the opto-diode. If sourcing current into the
inputs, then all three cathodes (-) should be tied together and grounded as shown in Figure 3. If sinking
current, then all three anodes (+) should be tied together to the +voltage as shown in Figure 4.
To enable an input, apply a DC voltage source of +5VDC to +8.6VDC across the inputs. The Anodes (+)
are on TB1 - pins 1, 3, and 5 and the Cathodes (-) are on TB1 - pins 2, 4, and 6.
Connecting the Step Motor
Phase 1 and 3 of the Step Motor is connected between TB1 - pins 7 and  8 on the terminal block connector.
Phase 2 and 4 of the Step Motor is connected between TB1 - pins 9 and 10 on the terminal block connec-
tor. Refer to Figures 3 & 4 for TYPICAL APPLICATION HOOK-UP.
NOTE: The physical direction of the motor with respect to the direction input will depend on the connection
of the motor windings.  To reverse the direction of the motor with respect to the direction input, swap the
wires on Phase 1 and  Phase 3.
WARNING: Do not connect or disconnect motor wires while power is applied! This driver does not
protect itself if the motor is disconnected while powered. 
						

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12 Pin Terminal Block Description
Table 2: Pin descriptions for terminal block TB1
# n i Pn o i t p i r c s e D
1:) + ( e d o n A t u p n I k c o l C p e t Se n o r o t o m e h t s e c n a v d a t u p n i d e t a l o s i s i h t n o e g d e g n i o g e v i t i s o p A
. 1 h c t i w S f o s t u p n I t c e l e S
p e t s o r c i M e h t n o t n e d n e p e d s i t n e m e r c n i e h t f o e z i s e h T . t n e m e r c n i
2)- ( e d o h t a C t u p n I k c o l C p e t S
3:) + ( e d o n A n o i t c e r i Dn o i t c e r i d l a c i s y h P . r o t o m e h t f o n o i t c e r i d e h t e g n a h c o t d e s u s i t u p n i d e t a l o s i s i h T
. s g n i d n i w r o t
o m e h t f o n o i t c e n n o c e h t n o s d n e p e d o s l a
4)- ( e d o h t a C n o i t c e r i D
5:) + ( e d o n A F F O / N O. r e v i r d e h t f o n o i t c e s t u p t u o e h t e l b a s i d d n a e l b a n e o t d e s u s i t u p n i d e t a l o s i s i h T
. k c o l c p e t s e h t t i b i
h n i t o n s e o d t u p n i s i h t , r e v e w o H . d e l b a n e e r a s t u p t u o e h t ) n e p o ( H G I H n e h W
6)- ( e d o h t a C F F O / N O
7:A e s a h Pr o t o M p e t S e h t f o 1 e s a h P
8:A e s a h Pr o t o M p e t S e h t f o 3 e s a h P
9:B e s a h Pr o t o M p e t S e h t f o 2 e s a h P
0 1:B e s a h Pr o t o M p e t S e h t f o 4 e s a h P
Power Supply Requirements
It is recommended that the MBC10101 AC be powered by the AA3621 corresponding transformer as
specified. The AA3621 transformer has an input line voltage ranging from 90-265VAC, two high-voltage
windings (yellow-yellow/black), and a logic winding (orange). The high voltage windings can be used to
power two drivers or put into parallel to power one. If powering one driver, connect the two yellow wires
together and connect the two yellow/black wires together and plug into the quick disconnects (QD1 and
QD2, shown on Figures 3 & 4) located on the front face of the driver. When connecting two drivers,
connect one yellow wire and one yellow/black wire (they come out together in pairs), and connect them to
the quick disconnects (QD1 & QD2) located on the front face of each driver. When using the AA3621
transformer, the nominal voltage of the MBC10101 AC will be 80VDC. In Figure 1, the transformer wiring is
shown for different line voltages ranging from 90-265VAC. A DC input of 30-85 volts can also be used to
power the drive. To connect the DC to the drive, place the ground wire on the QD2, and the plus wire on
QD1. It is recomended that fully insuated female quick connect connectors (Panduit # DNF14-250FIB) be
used to connect to QD1 and QD2.
Power Connector Requirements
It is necessary that fully insulated female quick connect connectors be used for QD1, QD2 and QD3.
Panduit # DNF18-250FIB - Nylon fully insulated, funnel entry with insulation support and internal
        wire stop. Wire range of #22-18 and a tab size of .250 x .032 in.
Panduit # DNF14-250FIB - Nylon fully insulated, funnel entry with insulation support and internal
        wire stop. Wire range of #16-14 and a tab size of .250 x .032 in.
Panduit # DNF10-250FIB - Nylon fully insulated, funnel entry with insulation support and internal
        wire stop. Wire range of #12-10 and a tab size of .250 x .032 in. 
						

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Transformer Drawings - Hook UpsTransformer Drawings - Dimensions
Figure 2: Wiring for various line voltages for the AA3621.Figure 1: Physical dimensions of the AA3621 transformer 
						

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Absolute Maximum Ratings
Input Voltage: 60 VAC
Output Current: 10.0 AMPS PEAK
Max Plate Temperature: 70° C
Storage Temperature: 0° to +50° C
Electrical Specifications
m e t In i Mp y Tx a Ms t i n U
) r e w o P ( e g a t l o V t u p n I0 20606CA V
e g a t l o V s u B r o t o M0 30808CD V
t n e r r u C t u p t u O e s a h P1 . 11. 7)S M R ( A
t n e r r u C t u p t u O e s a h P5 . 10. 0 1)K A E P ( A
) s t u p n I ( e g a t l o V t u p n I5 . 36. 8CD V
y c n e u q e r F k c o l C000 1zH k
y c n e u q e r F g n i p p o h C0 32343zH k
e r u t a r e p m e T n o i t a r e p O007C
Table 3: MBC10101-AC electrical specifications
Setting the Output Current
WARNING: Do not set the current setting above the step motors rated current. When using a
higher current setting into a motor, the motor will overheat and burnup. Should this occur, the
driver will also be damaged.
The output current on the MBC10101 AC is set by an onboard potentiometer. This potentiometer deter-
mines the per phase peak output current of the driver. The relationship between the output current and the
potentiometer value is as follows:
Table 4:  Potentiometer values with respect to the output current
Refer to Table 5 for specific motor current settings.
Reducing Output Current
Reducing the output current is accomplished automatically and occurs approximately 1 second after the
last positive going edge of the step clock input. The amount of current per phase in the reduction mode is
approximately 50% of the set current.
t n e r r u C k a e Pg n i t t e S r e t e m o i t n e t o Pt n e r r u C k a e Pg n i t t e S r e t e m o i t n e t o P
A 5 . 1%0A 0 . 7%0 6
A 3 . 2%0 1A 9 . 7%0 7
A 1 . 3%0 2A 7 . 8%0 8
A 0 . 4%0 3A 6 . 9%0 9
A 0 . 5%0 4A 0 1%0 0 1
A 0 . 6%0 5- --- 
						

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Hook Up Drawings
Figure 3: Hook up for current sourcing inputs
Figure 4: Hook up for current sinking inputs 
						

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Dimension Drawing
Figure 5: MBC10101 AC dimensions 
						

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Motor Selection
The MBC10101 AC is a Bipolar Microstep Driver that is compatible with both Bipolar and Unipolar motors
(i.e. 8 and 4 lead motors and 6 lead motors).
Step motors with low current ratings and high inductance will perform better at low speeds, providing
higher low-end torque. Motors with high current ratings and low inductance will perform better at higher
speeds, providing more high-end torque. Higher voltages will cause the current to flow faster through the
motor coils. This in turn means higher step rates can be achieved. Care should be taken not to exceed the
maximum voltage of the driver.
Since the MBC10101 AC is a constant current source, it is not necessary to use a motor that is rated at the
same voltage as the supply voltage. What is important is that the MBC10101 AC is set to the appropriate
current level based on the motor being used.  Refer to the following chart for setting the current potentiom-
eter based on the current code in the part number of the motor. Examples of motor part numbers are
shown below. Anaheim Automation offers a comprehensive line of step motors in 14, 17, 23, 34 and 42
frame sizes. Contact the factory to verify motor compatibility with the MBC10101 AC.
Step Motor Current Setting Guide
Anaheim Automation offers motor cable, making hook-ups quick and easy!
Contact the factory or visit our website for more motor and cable offerings.
t n e r r u C r o t o M
e d o C r e b m u Nr a l o p i n U
g n i t a Rk a e P s e i r e S
g n i t a Rk a e P l e l l a r a P
g n i t a Rs e i r e S
t n e r r u C
g n i t t e Sl e l l a r a P
t n e r r u C
g n i t t e S
2 0
A 0 . 1A0 . 1A0 . 2-- - -%5
3 0
A 5 . 1A5 . 1A0 . 3%0%0 2
4 0
A 0 . 2A0 . 2A0 . 4%5%0 3
5 0
A 5 . 2A5 . 2A0 . 5%0 1%0 4
6 0
A 0 . 3A0 . 3A0 . 6%0 2%0 5
7 0
A 5 . 3A5 . 3A0 . 7%5 2%0 6
8 0
A 0 . 4A0 . 4A0 . 8%0 3%0 7
9 0
A 5 . 4A5 . 4A0 . 9%5 3%5 8
0 1
A 0 . 5A0 . 5A0 . 0 1%0 4%0 0 1
1 1
A 5 . 5A5 . 5A0 . 1 1%5 4%0 0 1
2 1
A 0 . 6A0 . 6A0 . 2 1%0 5%0 0 1
3 1
A 5 . 6A5 . 6A0 . 3 1%5 5%0 0 1
4 1
A 0 . 7A0 . 7A0 . 4 1%0 6%0 0 1
5 1
A 5 . 7A5 . 7A0 . 5 1%5 6-- - -
6 1
A 0 . 8A0 . 8A0 . 6 1%0 7-- - -
9 1
A 5 . 9A5 . 9A0 . 9 1%0 9-- - -
2 2
A 0 . 1 1A0 . 1 1A0 . 2 2%0 0 1-- - -
5 2
A 5 . 2 1A5 . 2 1A0 . 5 2%0 0 1-- - -
Table 5: Table selection for Anaheim Automation motor current settings. 
						

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When configuring the motor in a series configuration (connected from end to end with the
center tap floating) use the specified per Phase (or unipolar) current rating to determine the
current setting potentiometer value.
Determining Output Current
The output current for the motor used when microstepping is determined differently from that of a full/half
step unipolar driver. In the MBC10101 AC, a sine/cosine output function is used in rotating the motor. The
output current for a given motor is determined by the motors current rating and the wiring configuration of
the motor. There is a current adjustment potentiometer used to set the output current of the MBC10101
AC. This sets the peak output current of the sine/cosine waves. The specified motor current (which is the
unipolar value) is multiplied by a factor of 1.0, 1.4, or 2.0 depending on the motor configuration (series,
half-coil, or parallel).
WARNING: Do not set the current setting above the step motors rated current. When using a
higher current setting into a motor, the motor will overheat and burnup. Should this occur, the
driver will also be damaged.
Step Motor Configurations
Step motors can be configured as 4, 6, or 8 leads. Each configuration requires different currents. Refer to
the lead configurations and the procedures to determine their output current.
WARNING! Step motors will run hot even when configured correctly. Damage may occur to the motor if
a higher than specified current is used. Most specified motor currents are maximum values. Care
should be taken to not exceed these ratings.
6 Lead Motors
When configuring a 6 lead motor in a half-coil configuration (connected from one end of the coil to the
center tap), multiply the specified per Phase (or unipolar) current rating by 1.4 to determine the current
setting potentiometer value. This configuration will provide more torque at higher speeds when compared
to the series configuration. 
						

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4 Lead Motors
Multiply the specified series motor current by 1.4 to determine the current adjustment potentiometer
value. Four Lead Motors are usually rated with their appropriate series current, as opposed to the Phase
Current, which is the rating for 6 and 8 lead motors.
8 Lead Motors
Series Connection: When configuring the motor windings in series, use the per Phase (or unipolar)
current rating to determine the current setting potentiometer value.
Parallel Connection: When configuring the motor windings in parallel, multiply the per Phase (or unipo-
lar) current rating by 2.0 to determine the current setting potentiometer value.
NOTE: After the current has been determined, according to the motor connections above, use Table 3 to
choose the proper setting for the current setting potentiometer.
ANAHEIM AUTOMATION, INC