Autonics MD5 Series User manual

Q-3
(A)
Photoelectric
Sensors
(B)
Fiber
Optic
Sensors
(C)
Door/Area
Sensors
(D)
Proximity
Sensors
(E)
Pressure
Sensors
(F)
Rotary
Encoders
(G)
Connectors/
Connector Cables/
Sensor Distribution
Boxes/Sockets
(H)
Temperature
Controllers
(I)
SSRs/Power
Controllers
(J)
Counters
(K)
Timers
(L)
Panel
Meters
(M)
Tacho/
Speed/Pulse
Meters
(N)
Display
Units
(O)
Sensor
Controllers
(P)
Switching
Mode Power
Supplies
(Q)
Stepper Motors
& Drivers
& Controllers
(R)
Graphic/
Logic
Panels
(S)
Field
Network
Devices
(T)
Software
Small, Light, High Speed & Torque 5-Phase Stepper Motor Driver
● Bipolar constant pentagon drive method
● Includes auto current down and self-diagnosis function
● Low speed rotation and high accuracy controlling with
microstep-driving (MD5-HD14, MD5-HF14, MD5-HF14-AO,
MD5-HF28)
[Max. resolution - 250 division / In case of 5-phase stepper
motor of which basic step angle is 0.72°, it enables to
control up to 0.00288° per pulse and it requires 125,000
pulses per rotation.]
● Photocoupler input insulation method to minimize the
effects from external noise
Ordering Information
Specifications
Features
Item
Motor phase
Step type (resolution)
Power supply
RUN current
Output
MD 145 H F No mark Zero point excitation output※1
AO Alarm output
14 1.4A/Phase
28 2.8A/Phase
D 20-35VDC
F 100-220VAC
H Micro step (250-division)
NNormal Step
5 5-Phase
MD Motor Driver
※1: Except MD5-ND14
※KR-55MC can be replaced with MD5-HD14.
※KR-5MC can be replaced with MD5-ND14.
※
MD5-MF14 can be replaced with MD5-HF14.
※KR-505G can be replaced with MD5-HF28.
Please read “Safety Considerations” in operation
manual before using.
MD5-HD14
MD5-ND14
MD5-HF14-AO
MD5-HF14
MD5-HF28
Model
MD5-HD14
MD5-HF14
MD5-HF14-AO
MD5-HF28
MD5-ND14
Power supply
20-35VDC
ᜡ
※1
100-220VACᜠ 50/60Hz
20-35VDC
ᜡ
※1
Allowable voltage range
90 to 110% of the rated voltage
Max. current consumption
※
2
3A
5A
3A
RUN current※3
0.4-1.4A/Phase
1.0-2.8A/Phase
0.5-1.5A/Phase
STOP current
27 to 90% of RUN current (set by STOP current switch)
25 to 75% of RUN
current (set by STOP
current volume)
Drive method
Bipolar constant current pentagon drive
Basic step angle
0.72˚/step
Resolution
1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250-division (0.72 to 0.00288 /Step)
1, 2-division (0.72 , 0.36 /step)
Input pulse
characteristic
Pulse width
Min. 1
㎲ (CW, CCW), Min. 1ms (HOLD OFF)
Min. 10㎲ (CW, CCW),
Min. 1ms (HOLD OFF)
Duty rate
50% (CW, CCW)
Rising/Falling time
Below 130ns (CW, CCW)
Pulse input voltage
[H]: 4-8VDCᜡ, [L]: 0-0.5VDC
Pulse input current
7.5-14mA (CW, CCW), 10-16mA (HOLD OFF, DIVISION SELECTION, ZERO OUT)※4
Max. input pulse
frequency※5
Max. 500kHz (CW, CCW)
Max. 50kHz (CW, CCW)
Input resistance
270Ω (CW, CCW),
390Ω (HOLD OFF, DIVISION SELECTION),
10Ω (ZERO OUT)
270Ω (CW, CCW),
390Ω (HOLD OFF),
10Ω (ALARM)
270Ω (CW, CCW),
390Ω (HOLD OFF,
DIVISION SELECTION),
10Ω (ZERO OUT)
390Ω
(CW, CCW, HOLD OFF)
Insulation resistance
Over 100MΩ (at 500VDC megger, between all terminals and case)
Dielectric strength
1000VAC 50/60Hz for 1min (between all terminals and case)
Noise immunity
±500V the square wave
noise (pulse width: 1
μs
)
by the noise simulator
±2kV the square wave noise (pulse width: 1μs) by the noise simulator
±500V the square wave
noise (pulse width: 1μs
)
by the noise simulator
Vibration
Mechanical
1.5mm amplitude at frequency 5 to 60Hz (for 1 min) in each X, Y, Z direction for 2 hours
Malfunction
1.5mm amplitude at frequency 5 to 60Hz (for 1 min) in each X, Y, Z direction for 10 min
Environ-
ment
Ambient temp.
0 to 40℃,
storage: -10 to 60℃
0 to 50
℃, storage: -10 to 60℃
0 to 40℃,
storage: -10 to 60℃
Ambient humi.
35 to 85%RH, storage: 35 to 85%RH
Approval
ᜢ
ᜢ
὆
ᜢ
ᜢ ὆ ᜢ
Weight
※6
Approx. 327.5g
(approx. 220g)
Approx. 840g
(approx. 680g)
Approx. 820g
(approx. 660g)
Approx. 1.35kg
(approx. 1.2kg)
Approx. 183g
(approx. 130g)
※1: When using over 30VDC power supply, torque characteristics are improved but the driver temperature raise. The unit should be installed at the well ventilation
environment.
※2: Based on ambient temperature 25℃, ambient humidity 55%RH.
※3: RUN current varies depending on the input RUN frequency and max. RUN current at the moment varies also varies depending on the load.
※4: In case of MD5-HF14-AO, MD5-ND14, there are no DIVISION SELECTION, ZERO OUT function.
※5: Max. input pulse frequency is max. frequency to be input and is not same as max. pull-out frequency or max. slewing frequency.
※6: The weight includes packaging. The weight in parenthesis is for unit only. ※Environment resistance is rated at no freezing or condensation.
MD5 Series 5-Phase Stepper Motor Driver
(only for MD5-HF14,
MD5-HF28 model)

Q-4
MD5 Series
Function selection DIP switch
TEST
Self diagnosis function is for motor and driver test.
This function makes the motor rotate with 30rpm in full step. Rotation speed varies with resolution settings.
Rotation speed = 30rpm/resolution
In 1-pulse input method, it rotates to CCW, and in 2-pulse input method, it rotates to CW.
※ Be sure that the TEST switch is OFF before supplying the power.
If the TEST switch is ON, the motor operates immediately and it may be dangerous.
1/2 CLK
1/2 CLK switch is to select pulse input method.
1-pulse input method: CW → operating rotation signal input, CCW → rotation direction signal input ([H]: CW, [L]: CCW)
2-pulse input method: CW → CW rotation signal input, CCW → CCW rotation signal input.
C/D (auto current down)
This function is to reduce the current provided for motor automatically for preventing severe motor's heat when motor stops.
If motor RUN pulse is not applied, the current provided for motor reduces as the set STOP current.
※ Be sure that when motor RUN current is reduced, the stop torque of motor also reduced.
※ Set the STOP current by the STOP current switch.
Setting RUN current
5-Phase Micro Stepper Motor Driver [MD5-HD14]
Resolution switch RUN current switch
STOP current switch
Function
selection
DIP switch
Power indicator Input
terminal Zero
output
Power
terminal
Motor
connection
terminal
Switch No. 0 1 2 3 4 5 6 7 8 9A B C D E F
Current
(A/Phase) 0.4 0.5 0.57 0.63 0.71 0.77 0.84 0.9 0.96 1.02 1.09 1.15 1.22 1.27 1.33 1.4
Switch No. 0 1 2 3 4 5 6 7 8 9A B C D E F
% 27 31 36 40 45 50 54 58 62 66 70 74 78 82 86 90
Unit Description
No. Name Function Switch position
ON OFF (default)
1 TEST Self diagnosis function 30rpm rotation Not use
2 1/2 CLK Pulse input method 1-pulse input method 2-pulse input method
3C/D Auto current down Not use Use
Setting RUN current is for the current provided for motor when the motor runs.
※When RUN current is increased, RUN torque of the motor is also increased.
※When RUN current is set too high, the heat is severe.
※Set RUN current within the range of motor's rated current according to its load.
※Change RUN current only when the motor stops.
Setting STOP current is for the current provided for motor when the motor stops for preventing severe motor's heat.
This setting is applied when using C/D (current down) function.
Setting value of STOP current is percentage (%) ratio of the set RUN current.
E.g.) Set RUN current as 1.4A and STOP current as 40%.
STOP current is set as 1.4A×0.4=0.56A
※When STOP current is decreased, STOP torque of the motor is also decreased.
※When STOP current is set too low, the heat is lower.
※Change STOP current only when the motor stops.
Setting STOP current
Functions
※Refer to page Q-3 for
the specifications.

Q-5
(A)
Photoelectric
Sensors
(B)
Fiber
Optic
Sensors
(C)
Door/Area
Sensors
(D)
Proximity
Sensors
(E)
Pressure
Sensors
(F)
Rotary
Encoders
(G)
Connectors/
Connector Cables/
Sensor Distribution
Boxes/Sockets
(H)
Temperature
Controllers
(I)
SSRs/Power
Controllers
(J)
Counters
(K)
Timers
(L)
Panel
Meters
(M)
Tacho/
Speed/Pulse
Meters
(N)
Display
Units
(O)
Sensor
Controllers
(P)
Switching
Mode Power
Supplies
(Q)
Stepper Motors
& Drivers
& Controllers
(R)
Graphic/
Logic
Panels
(S)
Field
Network
Devices
(T)
Software
Zero point excitation output signal (ZERO OUT)
CW Pulse
CCW Pulse
ZERO OUT
ON
OFF
ON
OFF
ON
OFF 0 0 01 1 12 234 5 6 7 8 9
Switch No. 0 1 2 3 4 5 6 7 8 9A B C D E F
Resolution 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250
Step angle 0.72° 0.36° 0.18° 0.144° 0.09° 0.072° 0.045° 0.036° 0.0288° 0.018° 0.0144° 0.009° 0.0072° 0.00576° 0.0036° 0.00288°
This output indicates the initial step of excitation order of stepper motor and rotation position of motor axis.
This signal outputs every 7.2° of rotation of the motor axis regardless of resolution.
(50 outputs per 1 rotation of the motor.)
E.g.) Full step: outputs one time by 10 pulses input, 20-division: outputs one time by 200 pulses input.
This signal is for rotating motor's axis using external force or used for manual positioning.
When hold off signal maintains over 1ms as [H], motor excitation is released.
When hold off signal maintains over 1ms as [L], motor excitation is in a normal status.
※Must stop the motor for using this function.
※Refer to I/O Circuit and Connections.
HOLD OFF function
Setting Microstep (microstep: resolution)
Setting Resolution (same as MS1, MS2)
The MS1, MS2 switches is for resolution setting.
Select MS2 or MS2 by DIVISION SELECTION signal ([L]: MS1, [H]: MS2)
Select the step angle (motor rotation angle per 1 pulse).
The set step angle is dividing basic step angle (0.72°) of 5-phase stepper motor by setting value.
The calculation formula of divided step angle is as below.
When using geared type motor, the angle is step angle divided by gear ratio.
Step angle / gear ratio = Step angle applied gear
E.g) 0.72° / 10 (1:10) = 0.072°
※Must stop the motor before changing the resolution.
Set step angle = Basic step angle (0.72°)
Resolution
※CW
2-pulse input method (CW rotation signal input)
1-pulse input method (operating rotation signal input)
※CCW
2-pulse input method (CCW rotation signal input)
1-pulse input method (rotation direction signal input)
→ [H]: CW, [L]: CCW
※HOLD OFF
Control signal for motor excitation OFF
→ [H]: Motor excitation OFF
※DIVISION SELECTION
Division selection signal
→ [L]: Operated by MS1 setting resolution
[H]: Operated by MS2 setting resolution
※ZERO OUT
Zero point excitation output signal → Zero point status ON
※If the power for driving pulse from external is over
than +5VDC, please connect resistor at the outside.
(input power max. 24VDC, input current 10-20mA)
I/O Circuit and Connections
Motor
270Ω
270Ω CW
+5VDC
CCW
HOLD
OFF
DIVISION
SELECTION
390Ω
390Ω
[Signal]
[Motor]
[Power]
10Ω
GND
ZERO OUT
BLUE
RED
ORANGE
GREEN
5
4
3
2
1
1
2
3
4
5
6
7
8
9
10
1
2
BLACK
※This connection cable color is only for Autonics motors.
It may different cable color when using other motors.
Power
20-35VDC
+
-
Pentagon
connection
Standard
connection
Blue Gray+Red
Red Yellow+Black
Orange Orange+White
Green Brown+Green
Black Blue+Purple
5-Phase Stepper Motor Driver (1.4A/Phase, DC Power)

Q-6
MD5 Series
Connections
Dimensions
(unit: mm)
※
Please refer to Q-40 for
standard wiring.
Division selection
signal
Zero point
excitation
output signal
CW+
CW-
CCW+
CCW-
HOLD OFF+
HOLD OFF-
User
Controller
+
+
+
-
-
-Black
Green
Orange
Red
Blue
POWER
20-35VDC
Motor
4.5
20
39.5
100
86
76.5
74
38
4.5
94
100 105

Q-7
(A)
Photoelectric
Sensors
(B)
Fiber
Optic
Sensors
(C)
Door/Area
Sensors
(D)
Proximity
Sensors
(E)
Pressure
Sensors
(F)
Rotary
Encoders
(G)
Connectors/
Connector Cables/
Sensor Distribution
Boxes/Sockets
(H)
Temperature
Controllers
(I)
SSRs/Power
Controllers
(J)
Counters
(K)
Timers
(L)
Panel
Meters
(M)
Tacho/
Speed/Pulse
Meters
(N)
Display
Units
(O)
Sensor
Controllers
(P)
Switching
Mode Power
Supplies
(Q)
Stepper Motors
& Drivers
& Controllers
(R)
Graphic/
Logic
Panels
(S)
Field
Network
Devices
(T)
Software
5-Phase Micro Stepper Motor Driver [MD5-HF14]
Function selection DIP switch
※Refer to page Q-3 for the specifications.
Resolution
switch
RUN current switch
STOP current switch
Function selection DIP switch
Power indicator Input
terminal
Alarm indicator (red)
Power
terminal
Motor
connection
terminal
Unit Description
No. Name Function Switch position
ON OFF (default)
1 TEST Self diagnosis function 30rpm rotation Not use
2 2/1 CLK Pulse input method 1-pulse input method 2-pulse input method
3C/D Auto current down Not use Use
TEST
Self diagnosis function is for motor and driver test.
This function makes the motor rotate with 30rpm in full step. Rotation speed varies with resolution settings.
Rotation speed = 30rpm/resolution
In 1-pulse input method, it rotates to CCW, and in 2-pulse input method, it rotates to CW.
※ Be sure that the TEST switch is OFF before supplying the power.
If the TEST switch is ON, the motor operates immediately and it may be dangerous.
2/1 CLK
2/1 CLK switch is to select pulse input method.
1-pulse input method: CW → operating rotation signal input, CCW → rotation direction signal input ([H]: CW, [L]: CCW)
2-pulse input method: CW → CW rotation signal input, CCW → CCW rotation signal input.
C/D (auto current down)
This function is to reduce the current provided for motor automatically for preventing severe motor's heat when motor stops.
If motor RUN pulse is not applied, the current provided for motor reduces as the set STOP current.
※Be sure that when motor RUN current is reduced, the stop torque of motor also reduced.
※ Set the STOP current by the STOP current switch.
Setting RUN current
Switch No. 0 1 2 3 4 5 6 7 8 9A B C D E F
Current
(A/Phase) 0.4 0.5 0.57 0.63 0.71 0.77 0.84 0.9 0.96 1.02 1.09 1.15 1.22 1.27 1.33 1.4
Switch No. 0 1 2 3 4 5 6 7 8 9A B C D E F
% 27 31 36 40 45 50 54 58 62 66 70 74 78 82 86 90
Setting RUN current is for the current provided for motor when the motor runs.
※When RUN current is increased, RUN torque of the motor is also increased.
※When RUN current is set too high, the heat is severe.
※Set RUN current within the range of motor's rated current according to its load.
※Change RUN current only when the motor stops.
Setting STOP current is for the current provided for motor when the motor stops for preventing severe motor's heat.
This setting is applied when using C/D (current down) function.
Setting value of STOP current is percentage (%) ratio of the set RUN current.
E.g.) Set RUN current as 1.4A and STOP current as 40%.
STOP current is set as 1.4A×0.4=0.56A
※When STOP current is decreased, STOP torque of the motor is also decreased.
※When STOP current is set too low, the heat is lower.
※Change STOP current only when the motor stops.
Setting STOP current
5-Phase Stepper Motor Driver (1.4A/Phase, AC Power)
Functions

Q-8
MD5 Series
I/O Circuit and Connections
Zero point excitation output signal (ZERO OUT)
CW Pulse
CCW Pulse
ZERO OUT
ON
OFF
ON
OFF
ON
OFF 0 0 01 1 12 234 5 6 7 8 9
Switch No. 0 1 2 3 4 5 6 7 8 9A B C D E F
Resolution 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250
Step angle 0.72° 0.36° 0.18° 0.144° 0.09° 0.072° 0.045° 0.036° 0.0288° 0.018° 0.0144° 0.009° 0.0072° 0.00576° 0.0036° 0.00288°
This output indicates the initial step of excitation order of stepper motor and rotation position of motor axis .
This signal outputs every 7.2° of rotation of the motor axis regardless of resolution.
(50 outputs per 1 rotation of the motor.)
E.g.) Full step: outputs one time by 10 pulses input, 20-division: outputs one time by 200 pulses input.
This signal is for rotating motor's axis using external force or used for manual positioning.
When hold off signal maintains over 1ms as [H], motor excitation is released.
When hold off signal maintains over 1ms as [L], motor excitation is in a normal status.
※Must stop the motor for using this function.
※Refer to I/O Circuit and Connections.
HOLD OFF function
Setting Microstep (microstep: resolution)
Alarm output function
Setting Resolution (same as MS1, MS2)
The MS1, MS2 switches is for resolution setting.
Select MS2 or MS2 by DIVISION SELECTION signal ([L]: MS1, [H]: MS2)
Select the step angle (motor rotation angle per 1 pulse).
The set step angle is dividing basic step angle (0.72°) of 5-phase stepper motor by setting value.
The calculation formula of divided step angle is as follow.
When using geared type motor, the angle is step angle divided by gear ratio.
Step angle / gear ratio = Step angle applied gear
E.g) 0.72° / 10 (1:10) = 0.072°
※Must stop the motor before changing the resolution.
Set step angle = Basic step angle (0.72°)
Resolution
Overheat: When the temperature of driver base is over 80℃, alarm indicator (red) turns ON and motor stops with holding
the excision. Turn OFF the power and remove the causes. Turn ON the power and alarm output is OFF.
Overcurrent: When overcurrent is applied from motor damage by burn, driver damage, or error, alarm LED (red) is
flashed. When overcurrent occurs, the motor becomes HOLD OFF. Turn OFF the power and remove the causes to
normal operation.
※CW
2-pulse input method (CW rotation signal input)
1-pulse input method (operating rotation signal input)
※CCW
2-pulse input method (CCW rotation signal input)
1-pulse input method (rotation direction signal input)
→ [H]: CW, [L]: CCW
※HOLD OFF
Control signal for motor excitation OFF
→ [H]: Motor excitation OFF
※DIVISION SELECTION
Division selection signal
→ [L]: Operated by switch MS1
[H]: Operated by switch MS2
※ZERO OUT
Zero point excitation output signal → Zero point status ON
※If the power for driving pulse from external is over
than +5VDC, please connect resistor at the outside.
(input power max. 24VDC, input current 10-20mA)
[Signal]
[Motor]
[Power]
※This connection cable color is only for Autonics motors.
It may different cable color when using other motors.
Power
BLUE
RED
ORANGE
GREEN
BLACK
L
N
100-220VAC
50/60Hz
GND
G
AC
AC
5
4
3
2
1
1
2
3
4
5
6
7
8
9
10
270Ω
270Ω
390Ω
390Ω
10Ω
CW
CCW
HOLD
OFF
+5VDC
+5VDC
ZERO OUT
DIVISION SELECTION
2kΩ
Motor
Pentagon
connection
Standard
connection
Blue Gray+Red
Red Yellow+Black
Orange Orange+White
Green Brown+Green
Black Blue+Purple

Q-9
(A)
Photoelectric
Sensors
(B)
Fiber
Optic
Sensors
(C)
Door/Area
Sensors
(D)
Proximity
Sensors
(E)
Pressure
Sensors
(F)
Rotary
Encoders
(G)
Connectors/
Connector Cables/
Sensor Distribution
Boxes/Sockets
(H)
Temperature
Controllers
(I)
SSRs/Power
Controllers
(J)
Counters
(K)
Timers
(L)
Panel
Meters
(M)
Tacho/
Speed/Pulse
Meters
(N)
Display
Units
(O)
Sensor
Controllers
(P)
Switching
Mode Power
Supplies
(Q)
Stepper Motors
& Drivers
& Controllers
(R)
Graphic/
Logic
Panels
(S)
Field
Network
Devices
(T)
Software
Connections
Dimensions
(unit: mm)
※Please refer to Q-40 for
standard wiring.
Division selection
signal
F.G.
Zero point excitation
output signal +
-
+
-
Black
Green
Orange
Red
Blue
Motor 100-220VAC 50/60Hz
CW+
CW-
CCW+
CCW-
HOLD OFF+
HOLD OFF-
User
Controller
5
42
40
156
20 108
122
133.5
5.4
4-M4 Tap Depth: 8
7
120 170
5-Phase Stepper Motor Driver (1.4A/Phase, AC Power)

Q-10
MD5 Series
5-Phase Micro Stepper Motor Driver [MD5-HF14-AO]
Function selection DIP switch
Resolution switch
Function selection DIP switch
Power indicator
Alarm indicator (red)
Power
terminal
Motor
connection
terminal
RUN current switch
STOP current switch
Input/Output
terminal
※Refer to page Q-3 for the specifications.
Unit Description
TEST
Self diagnosis function is for motor and driver test.
This function makes the motor rotate with 30rpm in full step. Rotation speed varies with resolution settings.
Rotation speed = 30rpm/resolution
In 1-pulse input method, it rotates to CCW, and in 2-pulse input method, it rotates to CW.
※ Be sure that the TEST switch is OFF before supplying the power.
If the TEST switch is ON, the motor operates immediately and it may be dangerous.
2/1 CLK
2/1 CLK switch is to select pulse input method.
1-pulse input method: CW → operating rotation signal input, CCW → rotation direction signal input ([H]: CW, [L]: CCW)
2-pulse input method: CW → CW rotation signal input, CCW → CCW rotation signal input.
C/D (auto current down)
This function is to reduce the current provided for motor automatically for preventing severe motor's heat when motor stops.
If motor RUN pulse is not applied, the current provided for motor reduces as the set STOP current.
※ Be sure that when motor RUN current is reduced, the stop torque of motor also reduced.
※ Set the STOP current by the STOP current switch.
Setting RUN current
Switch No. 0 1 2 3 4 5 6 7 8 9A B C D E F
Current
(A/Phase) 0.4 0.5 0.57 0.63 0.71 0.77 0.84 0.9 0.96 1.02 1.09 1.15 1.22 1.27 1.33 1.4
Switch No. 0 1 2 3 4 5 6 7 8 9A B C D E F
% 27 31 36 40 45 50 54 58 62 66 70 74 78 82 86 90
Setting RUN current is for the current provided for motor when the motor runs.
※When RUN current is increased, RUN torque of the motor is also increased.
※When RUN current is set too high, the heat is severe.
※Set RUN current within the range of motor's rated current according to its load.
※Change RUN current only when the motor stops.
Setting STOP current is for the current provided for motor when the motor stops for preventing severe motor's heat.
This setting is applied when using C/D (current down) function.
Setting value of STOP current is percentage (%) ratio of the set RUN current.
E.g.) Set RUN current as 1.4A and STOP current as 40%.
STOP current is set as 1.4A×0.4=0.56A
※When STOP current is decreased, STOP torque of the motor is also decreased.
※When STOP current is set too low, the heat is lower.
※Change STOP current only when the motor stops.
Setting STOP current
No. Name Function Switch position
ON OFF (default)
1 TEST Self diagnosis function 30rpm rotation Not use
2 2/1 CLK Pulse input method 1-pulse input method 2-pulse input method
3C/D Auto current down Not use Use
Functions

Q-11
(A)
Photoelectric
Sensors
(B)
Fiber
Optic
Sensors
(C)
Door/Area
Sensors
(D)
Proximity
Sensors
(E)
Pressure
Sensors
(F)
Rotary
Encoders
(G)
Connectors/
Connector Cables/
Sensor Distribution
Boxes/Sockets
(H)
Temperature
Controllers
(I)
SSRs/Power
Controllers
(J)
Counters
(K)
Timers
(L)
Panel
Meters
(M)
Tacho/
Speed/Pulse
Meters
(N)
Display
Units
(O)
Sensor
Controllers
(P)
Switching
Mode Power
Supplies
(Q)
Stepper Motors
& Drivers
& Controllers
(R)
Graphic/
Logic
Panels
(S)
Field
Network
Devices
(T)
Software
I/O Circuit and Connections
This signal is for rotating motor's axis using external force or used for manual positioning.
When hold off signal maintains over 1ms as [H], motor excitation is released.
When hold off signal maintains over 1ms as [L], motor excitation is in a normal status.
※Must stop the motor for using this function.
※Refer to I/O Circuit and Connections.
HOLD OFF function
Alarm output function
Overheat: When the temperature of driver base is over 80℃, alarm indicator (red) turns ON and motor stops with holding
the excision. Turn OFF the power and remove the causes. Turn ON the power and alarm output is OFF.
Overcurrent: When overcurrent is applied from motor damage by burn, driver damage, or error, alarm LED (red) is
flashed. When overcurrent occurs, the motor becomes HOLD OFF. Turn OFF the power and remove the causes to
normal operation.
Switch No. 0 1 2 3 4 5 6 7 8 9A B C D E F
Resolution 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250
Step angle 0.72° 0.36° 0.18° 0.144° 0.09° 0.072° 0.045° 0.036° 0.0288° 0.018° 0.0144° 0.009° 0.0072° 0.00576° 0.0036° 0.00288°
Setting Microstep (microstep: resolution)
Setting Resolution (MS1)
The set step angle is dividing basic step angle (0.72°) of 5-phase stepper motor by setting value.
The calculation formula of divided step angle is as below.
When using geared type motor, the angle is step angle divided by gear ratio.
Step angle / gear ratio = Step angle applied gear
E.g) 0.72° / 10 (1:10) = 0.072°
※Must stop the motor before changing the resolution.
Set step angle = Basic step angle (0.72°)
Resolution
BLUE
RED
ORANGE
GREEN
BLACK
L
N
100-220VAC
50/60Hz
GND
Motor
G
AC
AC
5
4
3
2
1
1
2
3
4
5
6
7
9
10
270Ω
270Ω
390Ω
10Ω
2kΩ
CW
CCW
HOLD OFF
5-24VDC
+5VDC
Alarm OUT -
Alarm OUT +
8
Power
Pentagon
connection
Standard
connection
Blue Gray+Red
Red Yellow+Black
Orange Orange+White
Green Brown+Green
Black Blue+Purple
[Motor]
[Power]
[Signal]
※This connection cable color is only for Autonics motors.
It may different cable color when using other motors.
※CW
2-pulse input method (CW rotation signal input)
1-pulse input method (operating rotation signal input)
※CCW
2-pulse input method (CCW rotation signal input)
1-pulse input method (rotation direction signal input)
→ [H]: CW, [L]: CCW
※HOLD OFF
Control signal for motor excitation OFF
→ [H]: Motor excitation OFF
※When alarm occurs, the motor becomes HOLD OFF. Turn OFF
the power and remove the causes to normal operation.
Over heat:
Over current:
5-Phase Stepper Motor Driver (1.4A/Phase, AC Power, Alarm Output)
※1: If the power for driving pulse from external is over than +5VDC,
please connect resistor at the outside.
(input power max. 24VDC, input current 10-24mA)
※1

Q-12
MD5 Series
Dimensions
Connections
(unit: mm)
CW+
CW-
CCW+
CCW-
HOLD OFF+
HOLD OFF-
User
Controller
Alarm
output
+
-
Black
Green
Orange
Red
Blue
Motor
F.G.
100-220VAC 50/60Hz
3-5VDC
※Please refer to Q-40 for
standard wiring.
20
42
5
40
156
108
122
133.5
5.4
4-M4 Tap Depth: 8
7
120 170
5-Phase Stepper Motor Driver (2.8A/Phase, AC Power)

Q-13
(A)
Photoelectric
Sensors
(B)
Fiber
Optic
Sensors
(C)
Door/Area
Sensors
(D)
Proximity
Sensors
(E)
Pressure
Sensors
(F)
Rotary
Encoders
(G)
Connectors/
Connector Cables/
Sensor Distribution
Boxes/Sockets
(H)
Temperature
Controllers
(I)
SSRs/Power
Controllers
(J)
Counters
(K)
Timers
(L)
Panel
Meters
(M)
Tacho/
Speed/Pulse
Meters
(N)
Display
Units
(O)
Sensor
Controllers
(P)
Switching
Mode Power
Supplies
(Q)
Stepper Motors
& Drivers
& Controllers
(R)
Graphic/
Logic
Panels
(S)
Field
Network
Devices
(T)
Software
※KR-505G can be replaced with MD5-HF28.
※
Power supply 100-220VAC and socket type wire terminal blocks are
upgraded comparing to KR Series.
5-Phase Microstep Motor Driver [MD5-HF28]
Resolution switch
RUN current switch
STOP current switch
Function
selection
DIP switch
Power indicator
Alarm indicator (red)
※Refer to page Q-3 for the specifications.
Unit Description
Function selection DIP switch
No. Name Function Switch position
ON OFF (default)
1 TEST Self diagnosis function 30rpm rotation Not use
2 2/1 CLK Pulse input method 1-pulse input method 2-pulse input method
3C/D Auto Current Down Not use Use
TEST
Self diagnosis function is for motor and driver test.
This function makes the motor rotate with 30rpm in full step. Rotation speed varies with resolution settings.
Rotation speed = 30rpm/resolution
In 1-pulse input method, it rotates to CCW, and in 2-pulse input method, it rotates to CW.
※ Be sure that the TEST switch is OFF before supplying the power.
If the TEST switch is ON, the motor operates immediately and it may be dangerous.
2/1 CLK
2/1 CLK switch is to select pulse input method.
1-pulse input method: CW → operating rotation signal input, CCW → rotation direction signal input ([H]: CW, [L]: CCW)
2-pulse input method: CW → CW rotation signal input, CCW → CCW rotation signal input.
C/D (auto current down)
This function is to reduce the current provided for motor automatically for preventing severe motor's heat when motor
stops.
If motor RUN pulse is not applied, the current provided for motor reduces as the set STOP current.
※Be sure that when motor RUN current is reduced, the stop torque of motor also reduced.
※ Set the STOP current by the STOP current switch.
Setting RUN current
Switch No. 0 1 2 3 4 5 6 7 8 9A B C D E F
Current
(A/Phase) 1.14 1.25 1.36 1.50 1.63 1.74 1.86 1.97 2.10 2.20 2.30 2.40 2.50 2.60 2.78 2.88
Switch No. 0 1 2 3 4 5 6 7 8 9A B C D E F
% 27 31 36 40 45 50 54 58 62 66 70 74 78 82 86 90
Setting RUN current is for the current provided for motor when the motor runs.
※When RUN current is increased, RUN torque of the motor is also increased.
※When RUN current is set too high, the heat is severe.
※Set RUN current within the range of motor's rated current according to its load.
※Change RUN current only when the motor stops.
Setting STOP current is for the current provided for motor when the motor stops for preventing severe motor's heat.
This setting is applied when using C/D (current down) function.
Setting value of STOP current is percentage (%) ratio of the set RUN current.
E.g.) Set RUN current as 2.5A and STOP current as 40%.
STOP current is set as 2.5A×0.4=1A
※When STOP current is decreased, STOP torque of the motor is also decreased.
※When STOP current is set too low, the heat is lower.
※Change STOP current only when the motor stops.
Setting STOP current
5-Phase Stepper Motor Driver (2.8A/Phase, AC Power)
Functions

Q-14
MD5 Series
Zero point excitation output signal (ZERO OUT)
CW Pulse
CCW Pulse
ZERO OUT
ON
OFF
ON
OFF
ON
OFF 0 0 01 1 12 234 5 6 7 8 9
Switch No. 0 1 2 3 4 5 6 7 8 9A B C D E F
Resolution 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250
Step angle 0.72° 0.36° 0.18° 0.144° 0.09° 0.072° 0.045° 0.036° 0.0288° 0.018° 0.0144° 0.009° 0.0072° 0.00576° 0.0036° 0.00288°
This output indicates the initial step of excitation order of stepper motor and rotation position of motor axis.
This signal outputs every 7.2° of rotation of the motor axis regardless of resolution.
(50 outputs per 1 rotation of the motor.)
E.g.) Full step: outputs one time by 10 pulses input, 20-division: outputs one time by 200 pulses input.
This signal is for rotating motor's axis using external force or used for manual positioning.
When hold off signal maintains over 1ms as [H], motor excitation is released.
When hold off signal maintains over 1ms as [L], motor excitation is in a normal status.
※Must stop the motor for using this function.
※Refer to I/O Circuit and Connections.
HOLD OFF function
Setting Microstep (microstep: resolution)
Alarm output function
Setting Resolution (same as MS1, MS2)
The MS1, MS2 switches is for resolution setting.
Select MS2 or MS2 by DIVISION SELECTION signal ([L]: MS1, [H]: MS2)
Select the step angle (motor rotation angle per 1 pulse).
The set step angle is dividing basic step angle (0.72°) of 5-phase stepper motor by setting value.
The calculation formula of divided step angle is as follow.
When using geared type motor, the angle is step angle divided by gear ratio.
Step angle / gear ratio = Step angle applied gear E.g) 0.72° / 10 (1:10) = 0.072°
※Must stop the motor before changing the resolution.
Set step angle = Basic step angle (0.72°)
Resolution
Overheat: When the temperature of driver base is over 80℃, alarm LED (red) turns ON and motor stops with holding the
excision. Turn OFF the power and remove the causes. Turn ON the power and alarm output is OFF.
Overcurrent: When overcurrent is applied from motor damage by burn, driver damage, or error, alarm LED (red) is
flashed. When overcurrent occurs, the motor becomes HOLD OFF. Turn OFF the power and remove the
causes to normal operation.
I/O Circuit and Connections
※This connection cable color is only for Autonics motors.
It may different cable color when using other motors.
※CW
2-pulse input method (CW rotation signal input)
1-pulse input method (operating rotation signal input)
※CCW
2-pulse input method (CCW rotation signal input)
1-pulse input method (rotation direction signal input)
→ [H]: CW, [L]: CCW
※HOLD OFF
Control signal for motor excitation OFF
→ [H]: Motor excitation OFF
※DIVISION SELECTION
Division selection signal
→ [L]: Operated by switch MS1
[H]: Operated by switch MS2
※ZERO OUT
Zero point excitation output signal → Zero point status ON
※If the power for driving pulse from external is over
than +5VDC, please connect resistor at the outside.
[Signal]
[Motor]
[Power]
Power
BLUE
RED
ORANGE
GREEN
BLACK
L
N
100-220VAC
50/60Hz
GND
G
AC
AC
5
4
3
2
1
1
2
3
4
5
6
7
8
9
10
270Ω
270Ω
390Ω
390Ω
10Ω
CW
CCW
HOLD
OFF
+5VDC
+5VDC
ZERO OUT
DIVISION SELECTION
2kΩ
Motor
Pentagon
connection
Standard
connection
Blue Gray+Red
Red Yellow+Black
Orange Orange+White
Green Brown+Green
Black Blue+Purple
5-Phase Stepper Motor Driver (2.8A/Phase, AC Power)

Q-15
(A)
Photoelectric
Sensors
(B)
Fiber
Optic
Sensors
(C)
Door/Area
Sensors
(D)
Proximity
Sensors
(E)
Pressure
Sensors
(F)
Rotary
Encoders
(G)
Connectors/
Connector Cables/
Sensor Distribution
Boxes/Sockets
(H)
Temperature
Controllers
(I)
SSRs/Power
Controllers
(J)
Counters
(K)
Timers
(L)
Panel
Meters
(M)
Tacho/
Speed/Pulse
Meters
(N)
Display
Units
(O)
Sensor
Controllers
(P)
Switching
Mode Power
Supplies
(Q)
Stepper Motors
& Drivers
& Controllers
(R)
Graphic/
Logic
Panels
(S)
Field
Network
Devices
(T)
Software
CW+
CW-
CCW+
CCW-
HOLD OFF+
HOLD OFF-
User
Controller
+
-
+
-
Black
Green
Orange
Red
Blue
Motor
※Please refer to Q-40 for
standard wiring.
Division selection
signal
Zero point excitation
output signal
F.G.
100-220VAC 50/60Hz
Connections
Dimensions (unit: mm)
54.1
R5 146
145.3
127.5 10.5
5.5
163
200
211.5
4-Ø6
4-R0.5
Ø5
185
5
49
20
5-Phase Stepper Motor Driver (2.8A/Phase, AC Power)

Q-16
MD5 Series
Function selection DIP switch
5-Phase Stepper Motor Driver [MD5-ND14]
Input
terminal
STOP
current
volume
RUN current
volume
Function
selection
DIP switch
Power
terminal
Motor
connection
terminal
※Refer to page Q-3 for the specifications.
Unit Description
※Changing pulse input method or resolution is available only when stepper motor stops.
If changing the resolution during operation, the motor may be out of phase.
ON
1 2
No. Nameplate Function Switch position
ON OFF (default)
1 1/2 CLK Pulse input method 1-pulse input method 2-pulse input method
2 FULL↔HALF Select resolution 1-division (0.72°) 2-division (0.36°)
1/2 CLK
1/2 CLK switch is to select pulse input method.
1-pulse input method: CW → operating rotation signal input, CCW → rotation direction signal input ([H]: CW, [L]: CCW)
2-pulse input method: CW → CW rotation signal input, CCW → CCW rotation signal input.
FULL ↔ HALF
FULL ↔ HALF switch is to set basic step angle for 5 phase stepper motor.
※Change resolution only when the motor stops.
Setting RUN current
RUN CURRENT
0.5A 1.5A
1.0A Setting RUN current is for the current provided for motor when the motor runs.
※When RUN current is increased, RUN torque of the motor is also increased.
※When RUN current is set too high, the heat is severe.
※Set RUN current within the range of motor's rated current according to its load.
※Change RUN current only when the motor stops.
Setting STOP current
25% 75%
STOP CURRENT Setting STOP current is for the current provided for motor when the motor stops.
Setting value of STOP current is percentage (%) ratio of the set RUN current.
E.g.) Set RUN current as 1.4A and STOP current as 40%.
STOP current is set as 1.4A×0.4=0.56A.
※When STOP current is decreased, STOP torque of the motor is also decreased.
※When STOP current is set too low, the heat is lower.
※Change STOP current only when the motor stops.
This signal is for rotating motor's axis using external force or used for manual positioning.
When hold off signal maintains over 1ms as [H], motor excitation is released.
When hold off signal maintains over 1ms as [L], motor excitation is in a normal status.
※Must stop the motor for using this function.
※Refer to I/O Circuit and Connections.
HOLD OFF function
Functions

Q-17
(A)
Photoelectric
Sensors
(B)
Fiber
Optic
Sensors
(C)
Door/Area
Sensors
(D)
Proximity
Sensors
(E)
Pressure
Sensors
(F)
Rotary
Encoders
(G)
Connectors/
Connector Cables/
Sensor Distribution
Boxes/Sockets
(H)
Temperature
Controllers
(I)
SSRs/Power
Controllers
(J)
Counters
(K)
Timers
(L)
Panel
Meters
(M)
Tacho/
Speed/Pulse
Meters
(N)
Display
Units
(O)
Sensor
Controllers
(P)
Switching
Mode Power
Supplies
(Q)
Stepper Motors
& Drivers
& Controllers
(R)
Graphic/
Logic
Panels
(S)
Field
Network
Devices
(T)
Software
I/O Circuit and Connections
※CW
2-pulse input method (CW rotation signal input)
1-pulse input method (operating rotation signal input)
※CCW
2-pulse input method (CCW rotation signal input)
1-pulse input method (rotation direction signal input)
→ [H]: CW, [L]: CCW
※HOLD OFF
Control signal for motor excitation OFF
→ [H]: Motor excitation OFF
※If the power for driving pulse from external is over
than +5VDC, please connect resistor at the outside.
(input voltage max. 24VDC, input current 10-20mA)
※This connection cable color is only for Autonics motors.
It may different cable color when using other motors.
※In case of standard connection, refer to Q-40 page.
+5VDC
390Ω
390Ω
390Ω
CCW
CW
+5VDC Max. 30mA output
Power
20-35VDC
6
5
4
3
1
2
+
-
GND
HOLD
OFF
[Motor]
[Power]
[Signal]
1
2
3
BLUE
RED
ORANGE
GREEN
BLACK
Motor
Pentagon
connection
Standard
connection
Blue Gray+Red
Red Yellow+Black
Orange Orange+White
Green Brown+Green
Black Blue+Purple
5
4
3
1
2
5-Phase Stepper Motor Driver (1.5A/Phase, DC Power)

Q-18
MD5 Series
2-pulse input method
1-pulse input method
CW [H]
[L]
CCW [H]
[L]
Rotation
position CW CCW
CW CCW
[H]
[L]
[L]
[H]
CW
CCW
Rotation
position
CW
(unit: mm)
80
87
93 55.5
87
4.5
20
32
4.5
22.5
45
Time Chart
Dimensions
※
Do not input CW, CCW signals at the same time in 2-pulse input method.
It may not operate properly if another direction signal is inputted when one of CW or CCW is [H].

Q-19
(A)
Photoelectric
Sensors
(B)
Fiber
Optic
Sensors
(C)
Door/Area
Sensors
(D)
Proximity
Sensors
(E)
Pressure
Sensors
(F)
Rotary
Encoders
(G)
Connectors/
Connector Cables/
Sensor Distribution
Boxes/Sockets
(H)
Temperature
Controllers
(I)
SSRs/Power
Controllers
(J)
Counters
(K)
Timers
(L)
Panel
Meters
(M)
Tacho/
Speed/Pulse
Meters
(N)
Display
Units
(O)
Sensor
Controllers
(P)
Switching
Mode Power
Supplies
(Q)
Stepper Motors
& Drivers
& Controllers
(R)
Graphic/
Logic
Panels
(S)
Field
Network
Devices
(T)
Software
MD5-HD14-3X
MD5-HD14-2X
※
1: Built-in zero point excitation output
signal is optional.
Features
Low Noise, Low Vibration Multi Axis 5-Phase Stepper Motor Driver
● Simultaneous operation of 2, 3-axis by single power supply
20-35VDC
● Small, light weight and advanced quality by custom IC and
surface mounted circuit
● Realizing low noise, low vibration rotation with microstep-driving
● Low speed rotation and high accuracy controlling
with microstep-driving
● Max. resolution - 250 division: In case of 5-phase stepper motor
of which basic step angle is 0.72°, it enables to control up to
0.00288° per pulse
● Includes auto current down and self-diagnosis function
● Photocoupler input insulation method to minimize the effects
from external noise
Ordering Information
Specifications
Item
Motor phase
Step type (resolution)
Power supply
RUN current
Axis
MD 14 2X5 H D
2X 2-axis
3X 3-axis※
1
14 1.4A/Phase
D 20-35VDC
H Micro step (250-division)
5 5-Phase
MD Motor Driver
Please read “Safety Considerations” in operation
manual before using.
Model MD5-HD14-2X MD5-HD14-3X
Power supply※120-35VDCᜡ
Allowable voltage uctuation range 90 to 110% of the rated voltage
Max. current consumption※25A 7A
RUN current※30.4-1.4A/Phase
STOP current 27 to 90% of RUN current (set by STOP current switch)
Drive method Bipolar constant current pentagon drive
Basic step angle 0.72 /Step
Resolution 1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250-division (0.72 to 0.00288 /Step)
Input pulse
characteristic
Pulse width Min. 1μs (CW, CCW), Min. 1ms (HOLD OFF)
Duty rate 50% (CW, CCW)
Rising/Falling time Below 130ns (CW, CCW)
Pulse input voltage [H]: 4-8VDCᜡ, [L]: 0-0.5VDC
Pulse input current 7.5-14mA (CW, CCW), 10-16mA (HOLD OFF, ZERO OUT)
Max. input pulse frequency
※4
Max. 500kHz (CW, CCW)
Input resistance 270Ω (CW, CCW), 390Ω (HOLD OFF), 10Ω (ZERO OUT)
Insulation resistance Over 100MΩ (at 500VDC megger, between all terminals and base)
Dielectric strength 1,000VAC 50/60Hz for 1min (between all terminals and base)
Noise immunity ±500V the square wave noise (pulse width: 1μs) by the noise simulator
Vibration Mechanical 1.5mm amplitude at frequency 5 to 60Hz (for 1 min) in each X, Y, Z direction for 2 hours
Malfunction 1.5mm amplitude at frequency 5 to 60Hz (for 1 min) in each X, Y, Z direction for 10 min
Environ-
ment
Ambient temp. 0 to 40℃, storage: -10 to 60℃
Ambient humi. 35 to 85%RH, storage: 35 to 85%RH
Approval
Weight※5Approx. 446g (approx. 292g) Approx. 597g (approx. 411g)
※1: When using over 30VDC power supply, torque characteristics are improved but the driver temperature raise. The unit should be installed
at the well ventilation environment.
※2: Based on ambient temperature 25℃, ambient humidity 55%RH.
※3: RUN current varies depending on the input RUN frequency and max. RUN current at the moment varies also varies depending on the load.
※4: Max. input pulse frequency is max. frequency to be input and is not same as max. pull-out frequency or max. slewing frequency.
※5: The weight includes packaging. The weight in parenthesis is for unit only.
※Environment resistance is rated at no freezing or condensation.
5-Phase Stepper Motor Driver (1.4A/Phase, DC Power, Multi-Axis)

Q-20
MD5 Series
Functions
Function selection DIP switch
No. Name Function Switch position
ON OFF (default)
1 TEST Self diagnosis function 30rpm rotation Not use
2 1/2 CLK Pulse input method 1-pulse input method 2-pulse input method
3C/D Auto Current Down Not use Use
TEST
Self diagnosis function is for motor and driver test.
This function makes the motor rotate with 30rpm in full step. Rotation speed varies with resolution settings.
Rotation speed = 30rpm/resolution
In 1-pulse input method, it rotates to CCW, and in 2-pulse input method, it rotates to CW.
※ Be sure that the TEST switch is OFF before supplying the power.
If the TEST switch is ON, the motor operates immediately and it may be dangerous.
1/2 CLK
1/2 CLK switch is to select pulse input method.
1-pulse input method: CW → operating rotation signal input, CCW → rotation direction signal input ([H]: CW, [L]: CCW)
2-pulse input method: CW → CW rotation signal input, CCW → CCW rotation signal input.
C/D (auto current down)
This function is to reduce the current provided for motor automatically for preventing severe motor's heat when motor
stops.
If motor RUN pulse is not applied, the current provided for motor reduces as the set STOP current.
※ Be sure that when motor RUN current is reduced, the stop torque of motor also reduced.
※ Set the STOP current by the Setting STOP current switch.
Setting RUN current
Setting RUN current is for the current provided for motor when the motor runs.
※When RUN current is increased, RUN torque of the motor is also increased.
※When RUN current is set too high, the heat is severe.
※Set RUN current within the range of motor's rated current according to its load.
※Change RUN current only when the motor stops.
Setting STOP current is for the current provided for motor when the motor stops.
This setting is applied when using C/D (current down) function.
Setting value of STOP current is percentage (%) ratio of the set RUN current.
E.g.) Set RUN current as 1.4A and STOP current as 40%.
STOP current is set as 1.4A×0.4=0.56A
※When STOP current is decreased, STOP torque of the motor is also decreased.
※When STOP current is set too low, the heat is lower.
※Change STOP current only when the motor stops.
Setting STOP current
Zero point excitation output signal (ZERO OUT) [Option]
CW Pulse
CCW Pulse
ZERO OUT
ON
OFF
ON
OFF
ON
OFF 0 0 01 1 12 234 5 6 7 8 9
This output indicates the initial step of excitation order of stepper motor and rotation position of motor axis.
This signal outputs every 7.2° of rotation of the motor axis regardless of resolution.
(50 outputs per 1 rotation of the motor.)
E.g.) Full step: outputs one time by 10 pulses input,
20-division: outputs one time by 200 pulses input.
Switch No. 0 1 2 3 4 5 6 7 8 9A B C D E F
Current (A/Phase) 0.4 0.5 0.57 0.63 0.71 0.77 0.84 0.9 0.96 1.02 1.09 1.15 1.22 1.27 1.33 1.4
Switch No. 0 1 2 3 4 5 6 7 8 9A B C D E F
% 27 31 36 40 45 50 54 58 62 66 70 74 78 82 86 90
This signal is for rotating motor's axis using external force or used for manual positioning.
When hold off signal maintains over 1ms as [H], motor excitation is released.
When hold off signal maintains over 1ms as [L], motor excitation is in a normal status.
※Must stop the motor for using this function.
※Refer to I/O Circuit and Connections.
HOLD OFF function

Q-21
(A)
Photoelectric
Sensors
(B)
Fiber
Optic
Sensors
(C)
Door/Area
Sensors
(D)
Proximity
Sensors
(E)
Pressure
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(Q)
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& Controllers
(R)
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(S)
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(T)
Software
Setting Microstep (microstep: resolution)
Resolution (MS1)
The set step angle is dividing basic step angle (0.72°) of 5-phase stepper motor by setting value.
The calculation formula of divided step angle is as below.
When using geared type motor, the angle is step angle divided by gear ratio.
Step angle/gear ratio = Step angle applied gear
E.g) 0.72°/10 (1:10) = 0.072°
※Must stop the motor before changing the resolution.
Set step angle = Basic step angle (0.72°)
Resolution
I/O Circuit and Connections
※Power input of 2/3-axis are used as same and
I/O terminals are proportional to the number of axes.
※This connection cable color is only for Autonics motors.
It may different cable color when using other motors.
※CW
2-pulse input method (CW rotation signal input)
1-pulse input method (operating rotation signal input)
※CCW
2-pulse input method (CCW rotation signal input)
1-pulse input method (rotation direction signal input)
→ [H]: CW, [L]: CCW
※HOLD OFF
Control signal for motor excitation OFF
→ [H]: Motor excitation OFF
※ZERO OUT (option)
Zero point excitation output signal → Zero point status ON
※If the power for driving pulse from external is over
than +5VDC, please connect resistor at the outside.
(input voltage max. 24VDC, input current 10-20mA)
※In case of standard connection, refer to Q-40 page.
Switch No. 0123456789A B C D E F
Resolution 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250
Step angle 0.72° 0.36° 0.18° 0.144° 0.09° 0.072° 0.045° 0.036° 0.0288° 0.018° 0.0144° 0.009° 0.0072° 0.00576° 0.0036° 0.00288°
5-Phase Stepper Motor Driver (1.4A/Phase, DC Power, Multi-Axis)
[Signal]
[Motor]
[Power]
GND
BLUE
RED
ORANGE
GREEN
BLACK 5
4
3
2
1
1
2
3
4
5
6
7
8
270Ω
270Ω
390Ω
10Ω
CW
CCW
HOLD OFF
+5VDC
ZERO OUT
Pentagon
connection
Standard
connection
Blue Gray+Red
Red Yellow+Black
Orange Orange+White
Green Brown+Green
Black Blue+Purple
Power
20-35VDC
+
-
1
2
Motor
※Each axis structure is same.
MD5-HD14-3X
MD5-HD14-2X
RUN current
switch
Resolution
switch
STOP current
switch
3-axis 2-axis
2-axis
1-axis
1-axis
Function
selection
DIP switch
Motor
connector terminal
I/O terminal Power
terminal
Unit Description

Q-22
MD5 Series
Dimensions
MD5-HD14-2X
MD5-HD14-3X
(unit: mm)
5
20
180
40
80
40
80
5
245
Accessory Connector Qty.
Manufacturer Model No. MD5-HD14-2X MD5-HD14-3X
A Power 2-wire housing Yeonho electronics YH396-02V 1 1
B Motor 5-wire housing Yeonho electronics YH396-05V 2 3
C Signal 6-wire housing JST XAP-06V-1 2 3
- Power/Motor terminal pin Yeonho electronics YT396 12 17
- Signal terminal pin JST SXA-001T-P0.6 12 18
※Accessory connector specication
Time Chart
1-pulse input method 2-pulse input method
CW [H]
[L]
CCW [H]
[L]
Rotation
position CW CCW
CW CCW
[H]
[L]
[L]
[H]
CW
CCW
Rotation
position
※
Do not input CW, CCW signals at the same time in 2-pulse input method.
It may not operate properly if another direction signal is inputted when one of CW or CCW is [H].
CW
190
4-M3 Tap
5
66
80
180
2-axis 1-axis A
BC
260
5
66
249 4-M3 Tap
3-axis 2-axis 1-axis A
BC