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Connection
m
DANGER:
Ground the servo amplifier and servo motor securely.
To prevent an electric shock, always connect the protective earth terminal (PE) of the
servo amplifier marked with
b
CAUTION:
Do not reverse the diode's direction. Connecting it backwards could cause the
amplifier to malfunction so that signals are not output, and emergency stop and other
safety circuits are inoperable.
If the controller is not equipped with an EMERGENCY OFF function, then an external
EMERGENCY OFF switch must be installed.
Notes to fig. 3-28 and fig. 3-29:
The connection of terminals shown for the optional regenerative braking resistor applies exclusively
to servo amplifiers MR-J2S-350B or less and MR-J2S-200B4 or less. For exact descriptions of the
wiring of terminals for other performance classes, please see Tab. 3-4 and Tab. 3-5.
CN1A, CN1B, CN2 and CN3 have the same shape. Wrong connection of the connectors will lead to
a fault or may lead to a destruction of the inputs/outputs.
The sum of currents that flow in the external relays should be 80mA max. If it exceeds 80mA, supply
interface power from external.
Prior to starting up operations the external EMERGENCY OFF signal (EM1) must be switched on
(opener). By setting parameter 23 to "0001" the external EMERGENCY OFF switch may be
deactivated.
Total length of the MR-J2HBUSM-A and MR-J2HBUSM cables = max. 30m. Use of a cable clamp or
data line filters (3–4 in a row) near the connector pull to enhance noise resistence is recommended.
Motor-side wiring after the second axis has been omitted.
Up to 8 axes (n = 0–7) can be connected. MR-H-B series servo amplifiers can be connected to the
same bus (however, it requires a different cable).
For termination the connector CN1B of the last servo amplifier must be fitted with the terminating
resistance MR-A-TM.
Only for motors with electromagnetic brake.
A 1-phase 230VAC power supply can be used with servo amplifiers rated at MR-J2S-70A or less.
Please connect the power supply using only terminals L1 and L2. Do not connect anything to L3.
3 - 26
Examples of standard wiring diagrams
, with the protective earth of the control box.
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