YASKAWA RM2-755/1255SL User Manual

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Part Number: 166006-1CD

Revision: 14

RM2-755/1255SL POSITIONER

INSTRUCTIONS

YASKAWA INSTRUCTIONS

Upon receipt of the product and prior to initial operation, read these instructions thoroughly and

retain for future reference

MOTOMAN RM2-755/1255SL POSTIONER INSTRUCTIONS

CONTROLLER INSTRUCTIONS

CONTROLLER OPERATOR’S MANUAL

CONTROLLER MAINTENANCE MANUAL

The Controller operator’s manual above correspond to specific usage.

Be sure to use the appropriate manual.

1 of 145

Table of Contents

Questions and Answers:

D
Daniel BlairAug 4, 2025
Why is my YASKAWA RM2-755/1255SL motor overheating?
- M
  Marcus RobinsonAug 4, 2025
  If your YASKAWA Valve Positioners motor overheats, there are a few potential causes. First, the ambient temperature may be too high; try to reduce it below 40° C (104° F), keeping in mind the positioner's operating range is 0 to 45° C (32 to 113°F). Another cause could be a dirty motor surface, so clean it. Finally, the motor may be overloaded; in this case, reduce the load or unbalanced load.
S
Summer BauerAug 13, 2025
What to do if YASKAWA RM2-755/1255SL Valve Positioners motor does not start?
- S
  steven05Aug 13, 2025
  If the motor of your YASKAWA Valve Positioners does not start, check all wire connections to ensure they are secure. Also, verify that the system has been wired correctly. Finally, consider whether there is an overload and reduce the load or unbalanced load if necessary.
R
Roy OconnorAug 23, 2025
How to fix unusual noise in YASKAWA RM2-755/1255SL Valve Positioners?
- Y
  youngtylerAug 23, 2025
  If your YASKAWA Valve Positioners is making unusual noises, start by tightening the mounting bolts, as the motor may be loosely mounted. Also, the positioners may be misaligned. If the noise persists, it could be a noisy bearing. In that case, check the alignment, bearing noise, and lubrication. If the issue continues, contact Customer Support.

YASKAWA RM2-755/1255SL Specifications

General

Brand	YASKAWA
Model	RM2-755/1255SL
Category	Valve Positioners
Language	English

Summary

Safety

Summary of Warning Information

Explains the classification of safety notes (DANGER, WARNING, CAUTION, NOTICE).

Notes for Safe Operation

Details safety signal words and operational precautions.

Explanation of Warning Labels

Illustrates and explains various safety labels on the positioner.

Installation

Materials Required

Positioner Installation

Covers site preparation, mounting, and anchoring procedures.

Transporting Method

Mounting Positioner

CAUTION regarding floor support and foundation requirements for mounting.

Setting Headstock

Instructions for leveling the headstock.

Setting Tailstock

Instructions for leveling the tailstock.

Mounting the Positioner on the Floor

CAUTION on floor requirements and checking squareness.

Robotic Equipment Installation and Lagging Requirements

Installation of Safeguarding

Warnings and cautions regarding installation of safety features.

Adjusting the Hardstops

Power Connections

Electrical Connections

Electrical safety, grounding, and wiring guidelines.

Cable Connection

Load Specifications and Jig Mounting

Details of Fixture Mounting

Fixture Specifications

Maintenance and Inspection

Inspection Interval

Battery Pack Replacement

Grease Replenishment/Exchange for Speed Reducers

Positioner Home Position

Defines home position and provides steps for setting it.

Troubleshooting

Table of symptoms, causes, and corrective actions for positioner issues.

Recommended Spare Parts

Recommended Spare Parts

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