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Compact Linear Actuators
DRS Series Actuators
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.
Table of contents
1 Introduction .................................. 2
2 Safety precautions ....................... 6
3 Precautions for use ...................... 8
4 Installation...................................11
4.1
Location for installation..............11
4.2
Installing the actuator ............... 12
4.3
(sold separately) ....................... 14
4.4
Installing a load......................... 16
5 Connection..................................21
5.1
Connecting the driver ............... 21
5.2
brake ........................................ 21
6 Operation ....................................23
6.1
(adjustment knob type only) ..... 23
6.2
Screw shaft projection .............. 23
7 Maintenance/Inspection ..............24
8 Options (sold separately) ............25
HL-14005-
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Summary of Contents for Oriental motor DRS Series
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Page 1: Table Of Contents
Compact Linear Actuators DRS Series Actuators 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. -
Page 2: Introduction
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. - Page 3 This product is not subject to the EC’s Low Voltage Directive because its input power supply voltage is 24 VDC. • For EMC Directive This product has received EMC measures. For details, refer to DRS Series DC Power Supply Input Driver OPERATING . MANUAL Hazardous substances The products do not contain the substances exceeding the restriction values of RoHS Directive (2011/65/EU).
- Page 4 1 Introduction Names and functions of parts This section covers the names and functions of the actuator’s respective parts. The actuator adopts an integral structure where the ball screw and motor ( are stored together in a single case. See the reference page indicated for details on each part. Standard type Illustration shows the DRS42 standard type.
- Page 5 1 Introduction Guide type Illustration shows the DRS42 guide type. Electromagnetic brake (electromagnetic brake type only) Non-excitation operation Load mounting holes electromagnetic brake (24 VDC input) (4 locations) P.19 Joint A moving part of the actuator. P.18 Linear guide Used for transferring Screw shaft a load and as an This is the moving...
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Page 6: Safety Precautions
2 Safety precautions 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. Handling the product without observing the instructions that Warning accompany a “Warning”... - Page 7 2 Safety precautions Caution General • Do not use the actuator beyond its specifications, or injury or damage to equipment may result. • Do not touch the actuator during operation or immediately after stopping. The surface is hot and may cause a burn. Transportation •...
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Page 8: Precautions For Use
3 Precautions for use 3 Precautions for use This section covers limitations and requirements the user should consider when using the DRS series actuator. • Maximum thrust force Always operate the actuator under a load not exceeding the maximum thrust force. - Page 9 3 Precautions for use • Grease on screw shaft Grease on the screw shaft may darken slightly within a short time after the start of operation. This is not a problem if there is no abnormal noise (i.e., from deflection or interference).
- Page 10 3 Precautions for use • Electromagnetic brake Use the electromagnetic brake type for an application involving up/down travel. For a lifter or other device in which the load moves up and down, use the electromagnetic brake type and provide an additional safety-brake mechanism to hold the load in position.
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Page 11: Installation
4 Installation 4 Installation This section covers the location and method of installing the actuator, along with load installation. 4.1 Location for installation The actuator is designed and manufactured for installation in equipment. Install them in a well-ventilated location that provides easy access for inspection. The location must also satisfy the following conditions: •... -
Page 12: Installing The Actuator
4 Installation 4.2 Installing the actuator Installation direction The actuator can be installed in any direction. Installation method A mounting plate (model: PADRL- ) is available as an option. For details, refer to p.14. Install the actuator onto an appropriate flat metal plate [thickness of 5 mm (0.2 in.) or more] having excellent vibration resistance and heat conductivity. - Page 13 4 Installation Plate cutout for mounting [Unit: mm (in.)] Standard type L±0.1 (L±0.004) Model 22 to 23 DRS28 23 (0.906) 3 (0.12) (0.87 to 0.91) 25 to 27 DRS42 31 (1.22) 4.5 (0.18) (0.98 to 1.06) 4 × ØA ØB Guide type Model DRS28...
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Page 14: Installing The Actuator Using A Mounting Plate Padrl- (Sold Separately)
4 Installation 4.3 Installing the actuator using a mounting plate PADRL- (sold separately) Install the mounting plate to the actuator by tightening the supplied screws (four pcs.) into the mounting holes. Standard type Illustration shows the DRS42 standard type. Mounting hole Mounting plate Screw Guide type... - Page 15 4 Installation Mount the mounting plate to the equipment using two screws (not supplied). Three methods are available. Type A Effective Tightening Screw Model depth torque size [mm (in.)] [N·m (oz-in)] DRS28 8 (0.315) 1.0 (142) DRS42 10 (0.394) 5.0 (710) Type B Effective Tightening...
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Page 16: Installing A Load
4 Installation 4.4 Installing a load Standard type When using the standard type, always install it within the specified installation accuracy. If no anti-spin mechanism is provided, the screw shaft will slip and operation will be disabled. In addition, make sure the load installed to the screw shaft is supported with a linear guide, etc. - Page 17 4 Installation When installing a load on the DRS28 standard type, chamfer the load Note mounting hole by 0.1 mm (0.004 in.) × 45°. If the stopper surface for the screw shaft is chamfered excessively, the screw shaft may tilt and result in a malfunctioning actuator or shorter service life of the actuator.
- Page 18 4 Installation Guide type • Note If the joint of the guide type receives a load moment, make sure the load moment does not exceed the maximum load moment. Doing so may result in a malfunction or shorter service life of the actuator. •...
- Page 19 4 Installation When using load mounting holes on the linear guide side Install the load using load mounting holes at the joint and appropriate screws (not supplied). Screw Load mounting hole Joint W±0.3 (W±0.012) Tightening Effective Screw Model torque depth L [mm (in.)] W [mm (in.)] size...
- Page 20 4 Installation Installation accuracy When installing a load to the screw shaft of the standard type, ensure the installation accuracy specified below. Similar accuracy is needed when using a mounting plate. (Models with a guide shape have been assembled at the following installation accuracy upon the shipment.) Make sure the following mounting accuracy is provided using a dial test indicator or clearance gauge.
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Page 21: Connection
5 Connection This section covers the connecting driver or electromagnetic brake. 5.1 Connecting the driver For details, refer to DRS Series DC Power Supply Input Driver OPERATING MANUAL. 5.2 Connecting the electromagnetic brake The electromagnetic brake operates via the ON/OFF status of the DC power supply. - Page 22 5 Connection Timing chart for the electromagnetic brake 30 ms or less 20 ms or less Electromagnetic brake power input Release Electromagnetic brake Hold Operation Actuator operation Stop 0 ms or more 100 ms or more 20 ms or more 100 ms or more All windings off signal...
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Page 23: Operation
6 Operation 6 Operation 6.1 How to use the adjustment knob (adjustment knob type only) Use this knob to adjust the position when the power is off by manually moving the screw shaft. Turning the adjustment knob by one revolution moves the screw shaft by the length of the lead. -
Page 24: Maintenance/Inspection
7 Maintenance/Inspection It is recommended that the following items be checked regularly after operation. Should an abnormality be noted, discontinue any use and contact your nearest Oriental Motor office. Inspection items • Are there any loose actuator mounting screws? • Is there any abnormal noise coming from the actuator motor, screw shaft, linear guide, etc.? -
Page 25: Options (Sold Separately)
8 Options (sold separately) 8 Options (sold separately) Extension cable Required to extend the distance between the actuator and driver. Model Length [m (ft.)] CC01AIP 1 (3.3) CC02AIP 2 (6.6) CC03AIP 3 (9.8) CC05AIP 5 (16.4) CC07AIP 7 (23) CC10AIP 10 (32.8) Flexible extension cable Highly flexible cable required to extend the distance between the actuator and... - Page 26 8 Options (sold separately) −26−...
- Page 28 If a new copy is required to replace an original manual that has been damaged or lost, please contact your nearest Oriental Motor branch or sales office. • Oriental Motor shall not be liable whatsoever for any problems relating to industrial property rights arising from use of any information, circuit, equipment or device provided or referenced in this manual.
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