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2. OPERATION
WARNING
CAUTION
NOTICE
MEMORANDUM
Note: 1. To prevent an electric shock, always connect the protective earth
(PE) terminal (terminal marked
protective earth (PE) of the control box.
Note: 2. Connect the diode in the correct direction. If it is connected re-
versely, the servo amplifier will be faulty and will not output sig-
nals, disabling the emergency stop and other protective circuits.
3. The emergency stop switch must be installed.
Note: 4. When using the regenerative brake option, always remove the
lead from across D-P.
5. CN1A, CN1B, CN2 and CN3 have the same shape. Wrong con-
nection of the connectors will ead to a fault.
6. The sum of currents that flow in the external relays should be
80mA max. If it exceeds 80mA, supply interface power from ex-
ternal.
Note: 7. When starting operation, always connect the external emer-
gency stop signal (EMG) with SG. (Normally closed contacts)
8. The pins with the same signal name are connected in the servo
amplifier.
9. The trouble (ALM) signal is on when there is no alarm, i.e. in
the normal state.
When this signal is switched off (at occurrence of an alarm),
the output of the controller should be stopped by the sequence
program.
10. When connecting the personal computer together with monitor
outputs 1, 2, use the maintenance junction card (MR-
J2CN3TM). (Refer to Section 6-1-4)
11. The connection method changes with the servo motor series.
Refer to Section 3-2-2.
12. A single-phase 230V power supply may be used with the servo
amplifier of MR-J2-70A or less. Connect the power supply to L1
and L2 terminals and leave L3 open.
2– 9
) of the servo amplifier to the
2
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