Mitsubishi Electric MR-J4 B Series Instruction Manual page 256

11. Options and peripheral devices
Servo amplifier
MR-J4-10B/MR-
J4-20B
MR-J4-40B
MR-J4-60B/
MR-J4-70B
MR-J4-100B
MR-J4-200B
MR-J4-350B
MR-J4-500B
MR-J4-700B
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
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.)
Power factor
improving DC Reference
reactor
FR-HAL-0.4K
FR-HAL-0.75K
Fig. 11.3
FR-HAL-1.5K
FR-HAL-2.2K
FR-HAL-3.7K
FR-HAL-7.5K
FR-HAL-11K Fig. 11.4
FR-HAL-15K
Interface
Digital input interface (DI-1)
Relay used for digital input command signals
Digital output interface (DO-1)
Relay used for digital output signals
Dimensions [mm]
W W1 H
(Note)
104 84 99
104 84 99
104 84 99
115 (Note) 40 115
115 (Note) 40 115
130 50 135 100
160 75 164 111
160 75 167 126
To prevent defective contacts , use a relay for
small signal(twin contacts).
(Ex.) Omron : type G2A , MY
Small relay with 12 V DC or 24 V DC of rated
current 40 mA or less
(Ex.) Omron : type MY
11 - 39
Terminal
D
D1 D2 d
72 51 40 M5
74 56 44 M5
77 61 50 M5
77 71 57 M6
83 81 67 M6
98 86 M6
109 92 M6
124 107 M6
Selection example
Mass
screw
[kg]
size
M4 0.6
M4 0.8
M4 1.1
M4 1.5
M4 2.2
M5 4.2
M6 5.2
M6 7.0