Справочник Пользователя для Mitsubishi Electronics CR751-D

2 Robot arm

2-44

2.5.9 Air supply circuit example for the hand

shows an example of pneumatic supply circuitry for the hand.

(1) Place diodes parallel to the solenoid coil.
(2) When the factory pneumatic pressure drops, as a result of the hand clamp strength weakening, there can be

damage to the work. To prevent it, install a pressure switch to the source of the air as shown in

Fig. 2-28

and

use the circuit described so that the robot stops when pressure drops. Use a hand with a spring-pressure
clamp, or a mechanical lock-type hand, that can be used in cases where the pressure switch becomes dam

aged.

(3) The optional hand and solenoid valve are of an oilless type. If they are used, don't use any lubricator.
(4) Supply clean air to the vacuum generation valve when you use clean type robot.
(5) If the air supply temperature (primary piping) used for the tool etc. is lower than ambient air temperature, the

dew condensation may occur on the coupling or the hose surface.

Fig.2-28 ： Air supply circuit example for the hand

エア源

(クリーンエアー)
0.7MPa以下

フィルター

レギュレーター

圧力スイッチ

ロボット本体のAIR INへ

(0.5MPa±１０%)

Pneu

matic source

(Clean)
0.7MPa les

Filter

Regulator

Pressure switch

To the AIR IN (Robot arm)

(0.5MPa ±10%)