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