GB 18209.3-2010Electrical safety of machinery -- Indication, marking and actuation -- Part 3: Requirements for the location and operation of actuators (English PDF)

5.1 Principles

A machine for the operator, is applied between the actuator's operation and the final effect of the correlation should be obvious. Based on the operation and efficiency of the final should, this correlation can be divided into two groups.

Intermediate result, the final effects are not considered in this section.

NOTE. For example, for variable-speed drives, the final effect is the operating speed, which is caused by the action, not the output instruction causes the data processing unit, nor it is caused by a change in the magnetic field regulator.

5.2 End-effector

Caused by the action of the end-effector can usually divided into two opposing effects.

For not according to the increase/decrease the effect of dividing the final effects of such tests, to help enable devices, etc., the operation of these actuators cloth Set should still follow in Chapter 4.

Table 1 shows the effect of different types can be divided into two groups (see also IEC 60447 Table A.2).

Table 1 classification of the end-effector

Effect category

The final effect caused by Group 1 Group 2 Physical quantities (voltage, current, power, speed, frequency, Changes in temperature, light intensity, etc.) Increase Decrease Conditions change put into service start accelerate A turn-on circuit ignite Out stop brake OFF circuit b Extinguish Controlled vehicle or object relative to the base shaft movement up to the right down left with respect to the operator's forward movement away from the operator back toward the operator If you use a combination, then turned on the associated ground circuit.

b. If used in combination, then disconnect the associated ground circuit.

5.3 Action

Action may also be divided into two categories based on the following two points.

--- When the actuator has two operation direction corresponds both directions of motion. Then the action is related to the movement of a part of the human body;

--- Only a single direction of operation (such as rise) of a set of actions actuators, produced only a final effect, any given actuator in the group has a solid Given location. So this action is part of the human body to a movement towards the given actuator.

According to a feature of the operation is divided into groups 1 and 2 (see Table 2) is based on.

--- Two directions of movement;

--- Action point of application.

Table 2 (and Table A.1 in the IEC 60447 equivalent) indicates a role in how the press actuator arrangement and classification of different types, Appendix A

(Annex B and IEC 60447 equivalent) give a single example of the actuator function.

Table 2 Classification of actions

Operated actuator Genres Action category Movement direction Group 1 Group 2 Hand wheels, handles, knobs clockwise counterclockwise Substantially linear movement of the handle, A joystick, a push-button, etc.

Vertical movement up and down Level movement Right - left right left Before - after a left operator facing the operator Operated actuator group Genres Action category Action point of application Group 1 Group 2 it has the opposite effect A set of handles, Button, lever, pull Lines One another One above One another Next one Press, pull, etc.

Action exerted on

Operated actuator side Action applied to the lower Operated actuator side Action applied the right actuator device Action applied to the left Operated actuator Operated actuator group class action category classification VDT moving and clicking with XY-VDU controller Hit key keyboard Touch-sensitive area, touch Movement direction and point of application. Not classified b a more information, see IEC 60447.

b should as far as possible with the upper part of Table 2 rules.

5.4 Correlation between actions and ultimate effects

Group 1 Group 1 action should lead to the final effect.

Group 2 Group 2 action should lead to the final effect.

Clockwise a) hand wheel rotation resulting in increased speed;

b) moving the lever to the left leads to the object moves to the left;

c) handles the movement is expected in the controlled movement of objects in the same direction.

When the relative position will change the operator and the machine (especially in the case of mechanical activity and/or the remote controller portable actuator device group), the mechanical movement Orientation may become clear, it should be on the active part of the machinery or labeled with appropriate signs near the actuator or its nearby Symbols and/or the same color.

When special reasons (see Notes 1 and 2), practices have been formed does not comply with the above principles, then.

The direction of movement --- a body part and the final effect results in the actuator or its vicinity shall be given;

--- To make this approach is consistent with (standard) requirements, and should be used by changing the actuator type (for example, a lever to press Button) to achieve. Such as when the actuator device is not suitable for the type of change, the operator should be trained.

Note 1. This may include special reasons these situations. already there is a good pattern desired by the special operation of the actuator is determined to be valid operator. Special reasons Also contains these situations. technically difficult to maintain a correlation between action and effect. For example, the fluid control valve is normally rotated clockwise so that the flow cut back.

Note 2. Requirements for special types of actuator device and special purpose see GB/T 4205, for example.

--- Joystick raised and lowered;

--- Push buttons;

--- Pedal actuator device.

5.5 Stop

Many types of actuator, a position reserved for a special stop effect. This location should be set as follows.

a) for leave to stop manipulating a linear motion or angular movement of the actuator, a stop should be at the extreme left movement, the lowermost end, or end counterclockwise.

b) for leave to stop manipulating two opposing linear motion or angular movement of the actuator, a stop position should be in the middle of the stroke.

A set of actions actuators, each actuator group is given a final effect and have the same operation direction, stop the actuator should be placed in the actuator the group is the left or lower.

When a group of actuator raises the opposite effect, stop the actuator should be placed in the middle of the group operated actuator.

Note. Emergency stop actuator's asked to see GB 5226.1, IEC 60947-5-5 and GB 16754.

Appendix A

(Normative)

Single-function actuator is a typical example A.1 operated actuator type A.1.1 Overview A typical example is shown in Table A.1 actuator device, each arrow in the figure indicates that classification and eventually lead to action effects (according to Table 2).

Operating direction is determined by people standing in the operating position for actuator is determined. Operating position in the table indicated by the figures in the map number.

A.1.2 rotation

If the rotation angle of the handle is equipped with an indicator, it is always regarded as the rotary motion (see Table A.1 of Example 15).

From an axial movement of the three basic axes of the other axis, seen as rotational movement (as shown in Example 13 of Table A.1).

A.1.3 linear motion

The basic fact is parallel to the axis of movement, that both sides another motion distribution shaft are equal in total does not exceed the permissible angular motion when over 120 °, is considered to be a linear motion (see Example 22,23,24,32,33,34,42,43 A.1 and 44).

When the angular displacement is small (see Table A.1 Examples 21,31,41 and 51), or only a small cylindrical rotary actuator is part accessible or can see when, for example, part of the wheel or resting in hand housing knob in the slot (see Table A.1 Examples 25 and 35), it was seen as a kind of actuator Having a linear motion.

Table A.1 direction of movement of the actuator operating certain types of sample

A movement

Angle (rotation)

Linear

B vertical left - before and right horizontal direction b - b in different directions after the horizontal composition b Operated actuator group

Table A.1 (CONTINUED)

A movement

Angle (rotation)

Linear

B vertical left - before and right horizontal direction b - b in different directions after the horizontal composition b Operated actuator group a Each one example, map number, that the operator is located, the arrow on the group 1 relevant action.

b some cases, the angle (rotation) movement is considered to be a linear motion (see A.1.3).

references

[1] GB 5226.1-2008 Safety of machinery - Electrical machinery and electrical equipment - Part 1. General requirements (IEC 60204-1.

2005, IDT)

[2] GB/T 15706.1-2007 Safety of machinery - Basic concepts, general principles for design - Part 1. Basic terminology, methodology (ISO 12100-1:2003, IDT) [3] GB 16754-2008 Safety of machinery - Emergency stop design principles (ISO 13850:2006, IDT) [4] IEC 60947-5-5:2005 Low-voltageswitchgearandcontrolgear-Part 5-5. Controlcircuit devicesand switching elements-Electricalemergency stop device with mechanical latchingfunction 3-01316 CEI /0102-3.90281