Sharp CP-SR421 Instrukcja Użytkownika Pobierz pdf (Strona 256)

11. Options and peripheral devices

11 - 39

Dimensions [mm]

Servo amplifier

Power factor

improving DC

reactor

Reference

W W1 H

(Note)

D1 D2 d

Terminal

screw

size

Mass

[kg]

MR-J4-10B/MR-

J4-20B

FR-HAL-0.4K 104 84 99 72 51 40 M5 M4 0.6

MR-J4-40B FR-HAL-0.75K 104 84 99 74 56 44 M5 M4 0.8

MR-J4-60B/

MR-J4-70B

FR-HAL-1.5K 104 84 99 77 61 50 M5 M4 1.1

MR-J4-100B FR-HAL-2.2K 115 (Note) 40 115 77 71 57 M6 M4 1.5

MR-J4-200B FR-HAL-3.7K

Fig. 11.3

115 (Note) 40 115 83 81 67 M6 M4 2.2

MR-J4-350B FR-HAL-7.5K 130 50 135 100 98 86 M6 M5 4.2

MR-J4-500B FR-HAL-11K Fig. 11.4 160 75 164 111 109 92 M6 M6 5.2

MR-J4-700B FR-HAL-15K 160 75 167 126 124 107 M6 M6 7.0

Note. Maximum dimensions (The dimension varies depending on the bending degree of the input/output line.)

11.13 Relays (recommended)

The following relays should be used with the interfaces

Interface Selection example

Digital input interface (DI-1)

Relay used for digital input command signals

To prevent defective contacts , use a relay for

small signal(twin contacts).

(Ex.) Omron : type G2A , MY

Digital output interface (DO-1)

Relay used for digital output signals

Small relay with 12 V DC or 24 V DC of rated

current 40 mA or less

(Ex.) Omron : type MY

11.14 Noise reduction techniques

Noises are classified into external noises which enter the servo amplifier to cause it to malfunction and those

radiated by the servo amplifier to cause peripheral devices to malfunction. Since the servo amplifier is an

electronic device which handles small signals, the following general noise reduction techniques are required.

Also, the servo amplifier can be a source of noise as its outputs are chopped by high carrier frequencies. If

peripheral devices malfunction due to noises produced by the servo amplifier, noise suppression measures

must be taken. The measures will vary slightly with the routes of noise transmission.

(1) Noise reduction techniques

(a) General reduction techniques

Avoid laying power lines (input and output cables) and signal cables side by side or do not bundle

them together.Separate power lines from signal cables.

Use a shielded twisted pair cable for connection with the encoder and for control signal

transmission, and connect the external conductor of the cable to the SD terminal.

Ground the servo amplifier, servo motor, etc. together at one point. (Refer to section 3.12.)

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