Oriental motor DRS Series User manual

HL-14006-3
Compact Linear Actuators
DRS Series
DC Power Supply Input Driver
OPERATING MANUAL
Thank you for purchasing an Oriental Motor product.
This operating manual describes product handling procedures and safety precautions.
• Please read it thoroughly to ensure safe operation.
• Always keep the manual where it is readily available.

−2−
Table of contents
1Introduction .................................. 3
2Safety precautions ....................... 6
3Precautions for use......................9
4Preparation..................................11
4.1 Checking the product................11
4.2 How to identify the product
model........................................12
4.3 Combinations of actuators and
drivers.......................................13
4.4 Names and functions of parts...14
5Installation.................................. 15
5.1 Location for installation.............15
5.2 Installing the driver....................15
5.3 Installing and wiring in compliance
with EMC Directive....................17
6Connection................................. 20
6.1 Connection example.................20
6.2 Connecting the power supply....23
6.3 Connecting the actuator............24
6.4 Connecting the electromagnetic
brake type.................................24
6.5 Connecting the power supply for
the electromagnetic brake.........25
6.6 Connecting the control
input/output...............................26
6.7 About controll input/output........28
6.8 Timing chart ..............................37
7Setting.........................................38
7.1 Resolution ................................ 38
7.2 Pulse input modes.................... 39
7.3 Operating current ..................... 40
7.4 Speed-filter............................... 41
7.5 Operation data.......................... 42
8Protective functions.....................47
8.1 Descriptions of protective
functions and numbers of LED
blinks........................................ 47
8.2 How to clear a protective
function..................................... 48
9Inspection....................................49
10 Troubleshooting and remedial
actions ........................................50
11 Options (sold separately)............53

1 Introduction
−3−
1 Introduction
 Composition and contents of this operating manual
This manual describes the DC power supply input driver used with the DRS series.
Read the following operating manuals regarding the DRS series and follow the
instructions.
• DRS Series Actuators OPERATING MANUAL
Explains the installation of the actuator and a load.
• DRS Series DC Power Supply Input Driver OPERATING MANUAL
(this manual)
Explains the checking the product, combinations of actuators and drivers,
installation, connection, I/O, setting and troubleshooting of the driver.
 Before use
Only qualified personnel should work with the product. Use the product correctly
after thoroughly reading 2 “Safety precautions” on p.6.
The product described in this manual has been designed and manufactured for use in
general industrial machinery, and must not be used for any other purpose. Oriental
Motor Co., Ltd. is not responsible for any damage caused through failure to observe
this warning.
 Overview of the product
The compact linear actuator DRS series is a unit product consisting of a newly
designed linear-drive actuator combining a stepping motor ( ) with built-in
rotor position sensor and a ball screw, and a high-performance microstep driver.
The DRS series models incorporating are not subject to missteps, even
when the load changes suddenly. The speed and amount of traveling are constantly
monitored during operation, so that when an overload is about to cause the motor to
misstep, any delay in response is corrected and operation continues at maximum
thrust force.
 Standards and CE Marking
This product is recognized by UL and certified by CSA, and bears the CE Marking
(EMC Directive) in compliance with the EN Standards.
Applicable Standards Certification
Body Standards File No. CE Marking
Actuator
Driver UL 60950-1 CSA C22.2 No.60950-1 UL E208200 EMC Directive
∗ Approval conditions for UL 60950-1: Class III equipment, SELV circuit, Pollution degree 2
∗ For unit models, Oriental Motor declares conformance with the EMC Directive individually.

1 Introduction
−4−
• For Low Voltage Directive
This product is not subject to the EC’s Low Voltage Directive because its input
power supply voltage is 24 VDC. However, the user is advised to perform the
following steps when conducting product installation and connection.
• This product is designed for use within machinery, so it should be installed within
an enclosure.
• For the driver, use a power supply with reinforced insulation on its primary and
secondary sides.
• For EMC Directive
This product has received EMC measures under the conditions specified in
“Example of DC power supply input specification installation and wiring” on p.19.
Be sure to conduct EMC measures with the product assembled in your equipment by
referring to 5.3 “Installing and wiring in compliance with EMC Directive” on p.17.
Hazardous substances
The products do not contain the substances exceeding the restriction values of
Main features
• Low speed operation at low vibration levels
The DRS series achieves smooth, low speed operation with extremely low vibration,
thanks to its micro-stepping drive, which enables stepping in very small angles.
• Built-in alarm function
Whenever a load greatly exceeding the actuator rating is encountered, or when the
actuator’s screw shaft is constrained during operation, the driver outputs a warning
alarm.
In a vertical-travel application, the electromagnetic brake may be triggered upon the
detection of this alarm to prevent a moving section and the work from falling.
• Preset speed-filter
The filter time constant that determines actuator response can be set in 16
increments.
• Preset operating current
The level of motor current during operation can be set between 6 and 100%
(maximum) in 16 increments.
• Preset resolution
The actuator resolution levels can be set in four increments.
RoHS Directive (2011/65/EU).

1 Introduction
−5−
 System configuration
Controllers with pulse output functions are needed to operate the DRS series.
Driver
Actuator
DRS series
DC power
supply input
+LS sensor
- LS sensor
Pulse output
and control
input/output
Driver cable
(sold separately)
Control input/output
Control
input/output Extension cable
(sold separately)
Controller
(programmable
controller and
others)
Positioning
controller
ex: EMP series
(sold seperately)
• As for the power supply to the driver, use a DC power supply with reinforced
insulation on both the primary and secondary sides.
• If using an electromagnetic brake type, provide a 24 VDC power supply for the
electromagnetic brake separately from the control power supply. When an
extension cable is used, provide lead wires for the electromagnetic brake.
• If the EMP series is to perform the return to mechanical home operation, you need
a home detection sensor.

2 Safety precautions
−6−
2 Safety precautions
The precautions described below are intended to prevent danger or injury to the user
and other personnel through safe, correct use of the product. Use the product only
after carefully reading and fully understanding these instructions.
Warning
Handling the product without observing the instructions that
accompany a “Warning” symbol may result in serious injury or
death.
Caution
Handling the product without observing the instructions that
accompany a “Caution” symbol may result in injury or property
damage.
Note
Note
The items under this heading contain important handling
instructions that the user should observe to ensure safe use of
the product.
Warning
General
• Do not use the product in explosive or corrosive environments, in the presence of
flammable gases, locations subjected to splashing water, or near combustibles.
Doing so may result in fire or injury.
• Assign qualified personnel the task of installing, wiring, operating/controlling,
inspecting and troubleshooting the product. Failure to do so may result in fire,
injury or damage to equipment.
• For a vertical application, use the electromagnetic brake type and provide an
additional safety-brake mechanism to hold the load in position. The actuator loses
holding torque when the power is shut off, allowing the moving parts to fall and
possibly cause injury or damage to equipment.
• Do not use the actuator’s built-in electromagnetic brake mechanism for stopping
or for safety purposes. Using it for purposes other than holding the moving parts
and actuator in position may cause injury or damage to equipment.
• When the driver’s protective function is triggered, the actuator will stop and lose
its holding torque, possibly causing injury or damage to equipment.
• When the driver’s protective function is triggered, first remove the cause and then
clear the protective function. Continuing the operation without removing the
cause of the problem may cause malfunction of the actuator, leading to injury or
damage to equipment.
Installation
• Install the driver in an enclosure in order to prevent injury.

2 Safety precautions
−7−
Connection
• Keep the driver’s power supply input voltage within the specified range to avoid
fire.
• For the driver’s power supply use a DC power supply with reinforced insulation
on its primary and secondary sides. Failure to do so may result in electric shock.
• Connect the cables securely according to the wiring diagram in order to prevent
fire or electric shock.
• Do not forcibly bend, pull or pinch the cable. Doing so may result in fire.
Operation
• Turn off the driver power in the event of a power failure, otherwise the actuator
may suddenly start when the power is restored and may cause injury or damage to
equipment.
• Do not turn the C.OFF (All windings off) input to ON while the actuator is
operating. The actuator will stop and lose its holding ability, which may result in
injury or damage to equipment.
Repair, disassembly and modification
• Do not disassemble or modify the driver. This may cause injury. Refer all such
internal inspections and repairs to the branch or sales office from which you
purchased the product.
Caution
General
• Do not use the driver beyond its specifications, or injury or damage to equipment
may result.
• Keep your fingers and objects out of the openings in the driver, or fire or injury
may result.
• Do not touch the driver during operation or immediately after stopping. The
surface is hot and may cause a skin burn(s).
Installation
• Keep the area around the driver free of combustible materials in order to prevent
fire or a skin burn(s).
• To prevent the risk of damage to equipment, leave nothing around the driver that
would obstruct ventilation.
Operation
• Use the actuator and driver only in the specified combination. An incorrect
combination may cause a fire.
• Provide an emergency stop device or emergency stop circuit external to the
equipment so that the entire equipment will operate safely in the event of a system
failure or malfunction. Failure to do so may result in injury.

2 Safety precautions
−8−
• Before supplying power to the driver, turn all control inputs to the driver to OFF.
Otherwise, the actuator may start suddenly and cause injury or damage to
equipment.
• To prevent bodily injury, do not touch the screw shaft of the actuator during
operation.
• Before moving the screw shaft directly (as in the case of manual positioning),
confirm that the driver C.OFF (All windings off) input is ON to prevent injury.
• For the control input/output power supply, use a power supply with reinforced
insulation provided on the primary side, and provide it separately from the power
supply for the electromagnetic brake. Failure to do so may result in electric shock.
• Immediately when trouble has occurred, stop running and turn off the driver
power. Failure to do so may result in fire or injury.
Disposal
• To dispose of the driver, disassemble it into parts and components as much as
possible and dispose of individual parts/components as industrial waste.

3 Precautions for use
−9−
3 Precautions for use
This section covers limitations and requirements the user should consider when
using the DRS series driver.
• Conduct the insulation resistance measurement or withstand voltage
test separately on the actuator and the driver
Conducting the insulation resistance measurement or withstand voltage test with the
actuator and driver connected may result in injury or damage to the product.
• Acceleration (acceleration/deceleration rate)
The acceleration (acceleration/deceleration rate) when the actuator is started or
stopped must be within the specified range, irrespective of the loaded mass.
Operating at an acceleration (acceleration/deceleration rate) beyond the specified
range, an alarm will be output. Refer to p.42 for details.
• Operating speed
The operating speed of the actuator must be within the specified range, including
during acceleration. Refer to p.43 for details.
• Do not let the screw shaft hit the stroke end or load
Do not let the screw shaft hit the stroke end or equipment during operation, since
such an impact may damage the actuator. Should the screw shaft hit the stroke end
or equipment, return the potentiometer for adjusting the current setting switch
[SW1] to the factory set value and then retract the shaft by operating it in the reverse
direction at the starting speed. Refer to p.40, 43 for details.
• Use the electromagnetic brake type for an application involving
up/down travel.
When the actuator is used in an application involving up/down travel, such as a lifter,
use an electromagnetic brake type to hold the load in position. To hold the load in
position, apply the electromagnetic brake only after the actuator has stopped. Do not
use the brake to bring the moving actuator to a halt. Repeated braking for such a
purpose will wear the brake hub excessively, causing its holding ability to drop.
Since the electromagnetic brake is of the non-excitation type, it can also be used to
hold the load in position upon the occurrence of a power failure. However, this is not
a secure means of holding the load. Do not use the electromagnetic brake as a safety
brake.
When the driver-protection function is triggered, the actuator stops as the current is
turned off. The user must set a controller sequence that will cut off the power to the
electromagnetic brake and hold the load in position upon detecting an OFF state of
ALARM output.

3 Precautions for use
−10−
• Connecting an electromagnetic brake
If using an electromagnetic brake type, provide a 24 VDC power supply for the
electromagnetic brake separately from the control power supply.
When connecting the electromagnetic brake leads to DC power supply, observe the
correct polarity. Be sure to connect the supplied varistor (nonpolarized) to protect
the switch contacts and prevent noise.
• Preventing electrical noise
Refer to 5.3 “Installing and wiring in compliance with EMC Directive” on p.17 for
measures with regard to noise.