Convex CSMD2-U440 User manual

Manual no. CSMD2-440-CE-ENG-050124
CONVEX Microstep Driver FOR 2PH Step Motor
CSMD2 – U440 (UNIPOLAR DRIVE)
CSMD2 – B440 (BIPOLAR DRIVE)
USERS’ GUIDE
< CONTENTS >
1. Safety Cautions P.2
2. Unpacking and Inspection P.4
3. Driver Configuration P.4
4. Mounting P.6
5. Driver Current and Mode set P.8
6. Input Pulse Timing Chart P.11
7. Connection and Wiring P.13
8. Trouble Shooting P.17
9. Specifications P.19
Thank you for choosing the Convex Microstep Driver CSMD2 series.
Please read this manual carefully so that the equipment is used to its optimum.
A copy of this manual should be forwarded to the end user.

2
1. Safety Cautions
z You must read these cautions before using the product.
z In connection with the use of this product, in addition to carefully reading this manual, it is also
essential to pay attention to safety and handle the product correctly.
z These SAFETY CAUTIONS are classified into two grades: "DANGER" and "CAUTION".
DANGER
z DANGER safety caution given when incorrect handling could result in hazardous situations involving
the possibility of death or serious injury.
CAUTION
z CAUTION safety caution given when incorrect handling could result in hazardous situations involving
the possibility of moderate or light injury or damage to property.
z Note that, depending on the circumstances, failing to follow a CAUTION may also have very serious
consequences. Both of these classes of safety caution are very important and must be observed.
Store this manual carefully in a place where it is accessible for reference whenever necessary, and
forward a copy of the manual to the end user.
DANGER
<GENERAL>
z Use the drive in the environment specified in this manual. Using it in an environment, which does
not meet the general specifications, could cause electric shock, fire or malfunctions, and damage or
deterioration of the drive.
z Power off before installing or removing the drive. Electric shock and damage to drive may occur.
z If there is overloaded condition, the step motor may stop abruptly or stall. When the motor stalls,
the holding torque is very small. So that, when the motor is applied in vertical motion, before
operation, be careful to calculate the load effect.
<CONNECTIONS>
z Connect correctly according to the connection diagram in this manual. Electric shock and fire may
occur.
z The cable should not have excessive force applied to it and should not be bent beyond a 2.5cm
radius of curvature during normal operation. Electric shock, excessive noise, and fire may occur.
z Never connect/disconnect the motor from the drive when power is applied. If you do, the motor
connector may be damaged. Power should never be applied to the drive when all wires of motor are
not connected.
z Verify that there are no wire whiskers that can short out the motor connections.
z Never probe the drive. Never connect anything other than the motor to the motor terminals.
Probing or opening the drive in any other way will void the warranty. Hazardous voltages are present
within drive. The terminal interface will be broken if you open the drive. The terminal interface is
critical to reliability of the drive.
z The case of drive is electrically isolated with interior circuit by 0.1 uF capacitor for Earth. So you
can use the case for Earth. Be sure to connect the earth to enhance the drive noise immunity. When
you connect the Earth with wire, Use the thick wire and connect shortly.
<OPERATIONS>
z Never increase the current setting to more than 10% greater than the current specified for the
motor you are using. Excessive current may cause the motor to overheat and result in motor failure.
z Before operation, read carefully this manual. After power OFF, set Current and Mode selection.

3
z When the drive generate the heat excessively high(case temperature 70°C ), OFF the power
immediately and check
-if STOP CURRENT level is unnecessarily set high,
-if the mounting is effective for cooling.
z Do not contact any material to modify drive set switches in operation.
z When the main power of factory or laboratory is OFF by various reasons, be sure to turn OFF the
local power for step drive. The abrupt start of machine may occur when the main power OFF state is
released.
<OTHERS>
z During 30 sec after main power OFF, do not contact the connectors of drive. There will be
remained diminishing power. If power is left on, the drive will break down or malfunction.
CAUTIONS
<GENERAL>
z Be sure that drive current is not more than 10% of motor rated phase current.
z Take all possible measures to prevent chips or wire scraps from entering the drive. Entry of foreign
material will cause fire, failure or malfunctions.
<MOUNTING>
z Do not place the other controller or material on the drives.
z Install the drive correctly in the holes of base mounting panel, incorrect installation could result in
malfunctions, failure or detachment.
<OPERATION>
z Do not make abrupt stop the motor unnecessarily. The regenerated power of motor in sudden stop
may break down the drives.
z When the abnormal operations or emergency occur, check the general points listed in the last
chapter of this manual.
z To prevent the electric shock or drive fail, use the insulated material to modify dip-switches of
drive.
z The motor torque increases according to RUN CURRENT set value. However, do not set run
current larger than motor rated phase current, it will causes the vibration, mechanical noise, and
excessive heating in motor. Finally it shortens the life of motors.
z During operation, modifying set switch of the drive may cause electric shock or drive failure.
<OTHERS>
z During the power on, do not contact the conduct area of the connectors.
z When external force or torque is applied to motor shaft, motor regenerates the electric power. So
that, do not make the situation that , after motor wires are attached at drive, the shaft of motor is
rotation over 1000rpm.
For example, when the motor is applied to open the door of machine and power is OFF, to open the
door by hand will make the motor run over 1000rpm. Generally motor running at 1000rpm generates
the power of 40volt.
z Repair, disassemble, and hardware modifications can be made only in factory. Users are not
allowed to make such actions.
z Dispose of this product as industrial waste.

4
2. Unpacking and Inspection
z Carefully remove the contents of the carton in which the drive was shipped. Inspect the carton and
the drive and make note of any apparent physical damage. If severe defect is present then you should
consider rejecting the shipment and making contact with shipping company considering in-transit
damage claims. We have made every effort at the factory before shipment to fully inspect, test, and
properly package this product so that it reaches you defect free and without damage.
z All packaging materials should be saved and set aside in case a return shipment has to be made.
The contents may include manual and drive. Immediately report any discrepancies to the shipping
location.
3. Drive Configuration, Part name, and Its Function
Fig. 1 drive up side view for part name
3. 1 LED indicate
name LED color illumination condition
① POWER Power on Green When the power is supplied normally
② ALARM alarm state Red When abnormal state occur such as over
current, arm short, over heat, abnormal motor
connection.
1 2 345 6 78 9

5
3. 2 connectors
indication name function
③ DIR +/-
Dir + / - (1 pulse mode) CW + / - (2 pulse mode) Direction of Rotation +/ -(MODE dip sw 1 : off) Clockwise pulse +/- ( MODE dip sw 1 : on)
④ PLS +/-
Pls + / - (1 pulse mode) CCW + / - (2 pulse mode) Pulse input +/- (MODE dip sw 1 : off) Counterclockwise pulse +/- ( MODE dip sw 1 :
on)
⑤ Alarm +/-
Alarm out +/- When drive is abnormal state, with Alarm LED on, between +/- will be Low Impedance.
⑥ Reset +/-
Reset input +/- Motor Free input +/-
Input for drive alarm release and motor free
condition. Apply 8 – 20mA current through +/-. At
moment that current flow drive reset and in state
that current flow motor is in free state.
⑦ MOTOR Motor winding connector Drive out to motor windings
For B440(bipolar drive) donot connect
A_com,B_com
⑧ POWER Power input DC 12 Volt ~ 36Volt
Caution!! – Power polarity.
⑨ FG Frame Ground Case of drive is Frame Ground (FG).
3. 3 Dip switch name and function
Fig. 2 side view for dip switch selection
indication name Initial setting function see
⑩ STOP STOP current level selection 30% 100msec after motor stops, motor
current is down as 30%
⑪ RUN RUN current value selection 3.0A/ phase Drive supply set current to motion
in rotation
⑫ MODE
(SW. no. 1) Input pulse type selection 2 pulse mode (dir/pls mode) OFF : 1 pulse type ON : 2 pulse type
⑬ MODE
(SW no. 2-5) microstep resolution selection 6400 Pulse/Motor
1 Revolution
Selection for microste
p
resolution
of motor & drive
o n12341234
5 6 7
81 23 45
o no
n
STOP RUN MODE
10 11
12 13

6
4. Mounting
DANGER
z Do not use the drive in explosive, inflammable, caustic circumstance. Fire or drive fault may
occur.
z Switch the power off before installing or removing the drive. Electric shock and damage for drive
may occur.
z Only qualified service and installation personnel should mount this device. Electric shock may
occur.
CAUTION
z Do not place the other controller or material on the drives.
z Install the drive correctly in the holes of base mounting panel, incorrect installation could result in
malfunctions, failure, or detachment.
4. 1 environmental considerations
z Indoor use only
z Operating temperature : 0°c ~ 40°c
z In case when the surface temperature of the case of drive reaches 70°c, external cooling is crucially
needed.
z Do not use this drive in the place where drive can be easily contaminated by fluid such as water
and oil easily
z The place where easy cooling is possible.
z Do not use this drive under the circumstance of continuous vibration and mechanical shock. Mount
drive using shock-absorbing material.
z Do not use this drive under the presence of radiation, magnetic field or in vacuum.
z In case when there is unacceptable large noise, special cautions about shielding, grounding, and
wiring will be required.
4. 2 drive attachment
z The Convex drive is a self-contained package requiring minimal concern for mounting methods and
positions. A dimensional outline of CSMD2 series is given in Fig.3. The recommended mounting
position is vertical with the heatsink exposed to allow convection and heat removal from the drive. It is
recommended that you allow a minimum of 3 cm on all sides for airflow. The user should refrain from
mounting where the heatsink is unexposed or where easy access to the connectors or adjustments is
not practical.

7
z In general the drive should be positioned close to the motor although step motors are fairly tolerant
of long lead lengths. Should the drive need to be positioned more than 2 m from motor, consult the
factory for the availability of motors with longer lead lengths.
4. 3 dimensions
< Unit: mm>
Fig. 3 drive dimension for mounting
o
n1
2341234
5678123
45
o
no
n

8
5. Drive Current and Mode set
DANGER
z Switch the power off before current and mode set. Electric shock and damage for drive may occur.
z Before use or operation, be sure to carefully read this set method to prevent the drive and
mechanical equipment from being damaged
CAUTION
z To prevent the electric shock or drive fail, use the insulated material to set drive dip switches.
z The drive has three sets of dip-switch. The first set will be referred to as RUN CURRENT set, the
second set as STOP CURRENT set, and the third set as MODE SELECTION.
z Factory default settings are for 6400 pulses/(motor 1 revolution), Dir/pulse (2 pulse mode), 3.0A
RUN CURRENT, 30% STOP CURRENT.
5. 1 RUN CURRNT set switch
CAUTION
z Never increase the current setting to more than 10% greater than the current specified for the motor
you are using. Excessive current may cause the motor to overheat and result in motor failure.
z It is recommended that drive RUN current be set as same as rated motor phase current.
z The motor torque increases according to RUN CURRENT set value. However, do not set run current
larger than motor rated phase current, the motor will run roughly and may overheat.
z The first thing that you must do is set the RUN current on the drive to match the motor that you are
using. Use the directions below to set the dip-switch for your motor.
z If the closest current is within 10% of the rated current, it will probably suffice for most applications.
Current settings 10% greater than the rated value should not be used unless special cooling
precautions are taken or intermittent operation allows for.
z In general, If the run current of drive is set lower than motor phase current, less heating in motor,
low audible noise, and more smooth motion of motor can be achieved but the motor torque will be
smaller thanthe rated torque of the motor. So that, if you want the motor to move more smoothly, then
select higher torque motor and apply lower current.

9
5. 2 STOP CURRENT set
CAUTION
z Do not set STOP CURRENT level unnecessarily high. High STOP CURRENT causes heating of
motor and drive and finally it shortens the life of them.
z If STOP CURRENT level is set too low, at the moment of start and stop, motor can make a shock
impact on machines or in vertical motion, moving carriage may fall slowly.
z It is recommended that STOP CURRENT is set as low as possible through experiments.
z The drive can be configured for automatic low power. The current supplied to the motor windings
will be reduced to a certain value specified STOP CURRENT SET 100 msec after motion is complete.
This operation is excellent to help control heating and reduce power consumption when not in motion.
(For example) Current drive RUN CURRENT is set 3A and STOP CURRENT is set 40%. Then the motor
current in motion is 3A and 100 msec after motor stop the motor current will become ( 3A × 40% =)
1.2A.
z When the frequency of drive input pulse is less than 0.1pps(0.1Hz), as the run current is alternating
at every pulse input, motor torque is also alternating. In this application, set the resolution of drive
higher and apply input pulse of higher frequency.
Fig.4 Run Current Set value
Fig. 5 Stop current set value
ON
0.7A
(0.5A) 1.2A
(0.6A)
2.7A
(1.1A)
2.5A
(1.0A)
2.3A
(0.9A)
2.0A
(0.8A)
1.7A
(0.7A)
3.4A
(1.5A)
3.2A
(1.4A)
3.2A
(1.3A)
3.0A
(1.2A)
3.7A
(1.8A)
3.6A
(1.7A)
3.5A
(1.6A)
4.0A
(2.0A)
3.8A
(1.9A)
1
ON
1

10
5. 3 pulse type selection switch
CAUTION
z Frequent mistakes occur. Be sure to read this manual carefully and set correctly.
z If this switch is set incorrectly, motor rotates only one direction or CW, CCW rotation speed is
different at same input pulse speed.
5.4 microstep resolution set switch
z The resolution means the number of pulses per motor one turn.
z For example, if current drive resolution is 6400, then it means that drive requires 6400 pulses for
motor to rotate 1 turn and 6400pps input made motor turn at the speed of 1 rps (revolution per sec)
z The drive allows the user the versatility to select a microstep resolution that best matches his
application requirements. For a standard 1.8° step motor there are 8 selectable resolutions that range
from 200 to 51200 pulses (decimal type : 200 – 20000 pulses) per revolution. Refer to the following
Fig.6 and determine the resolution best meets your need and set switches as indicated.
Fig.6 Mode selection switch