Installation Of The Linear Servomotor - Mitsubishi Electric MELDAS MDS-B Series Instruction Manual

CAUTION

7-1 Installation of the linear servomotor

CAUTION
POINT
Chapter 7 Installation
1. The linear servo system uses a powerful magnet on the secondary side.
Thus, caution must be taken not only by the person installing the linear
motor, but also the machine operators. For example, persons wearing a
pacemaker, etc., must not approach the machine.
2. The person installing the linear motor and the machine operator must not
have any items (watch or calculator, etc.) which could malfunction or
break due to the magnetic force on their body.
3. Always use nonmagnetic tools for installing the linear motor or during
work in the vicinity of the linear motor.
(Example of nonmagnetic tool)
Explosion-proof beryllium copper alloy safety tool: Nihon Gaishi
4. Install the servo amplifier or motor on noncombustible material. Direct
installation on combustible material or near combustible materials could
lead to fires.
5. Follow this Instruction Manual and install the unit in a place where the
weight can be borne.
6. Do not get on top of or place heavy objects on the unit.
Failure to observe this could lead to injuries.
7. Always use the unit within the designated environment conditions.
8. The servo amplifier and linear servomotor are precision devices, so do not
drop them or apply strong impacts to them.
9. Do not install or run a servo amplifier or linear servomotor that is damaged
or missing parts.
10. When storing for a long time, please contact your dealer.
1. Securely fix the linear servomotor onto the machine. Incomplete fixing
could cause the servomotor to come off during operation, and lead to
injuries.
2. The motor must be replaced when damaged. (The connectors, cooling
ports, etc., cannot be repaired or replaced.)
3. Use nonmagnetic tools during installation.
4. An attraction force is generated in the magnetic body by the secondary
side permanent magnet. Take care not to catch hands.
Take special care when installing the primary side after the secondary
side.
5. Install the counterbalance and holding brakes for the vertical axis on the
machine side. The balance weight cannot track at 9.8m/s
a pneumatic counterbalance, etc., having high trackability.
6. Always install an electrical and mechanical stopper at the stroke end.
7. Take measure to prevent iron-based cutting chips from being attracted to
the secondary side permanent magnet.
8. Oil-proofing and dust-proofing measures higher than for the motor must
be taken for the linear scale.
1. Make the machine's rigidity as high as possible.
2. Keep the moving sections as light as possible, and the base section as
heavy and rigid as possible.
3. Securely fix the base section onto the foundation with anchor bolts.
4. Keep the primary resonance frequency of the entire machine as high as
possible. (Should be 200Hz or more.)
5. Install the motor so that the thrust is applied on the center of the moving
sections. If the force is not applied on the center of the moving parts, a
moment will be generated.
6. Use an effective cooling method such as circulated cooling oil.
7. In consideration of the cooling properties, select a motor capacity that
matches the working conditions.
8. Create a mechanism that can withstand high speeds and high
acceleration/deceleration.
7–2
2
or more, so use