Table of Contents
Advertisement
3. SIGNALS AND WIRING
Connection target
Symbol
(application)
Control circuit power
L11/L21
supply
Servo motor power
U/V/W
output
Power regeneration
converter
N-
Power regeneration
common converter
Brake unit
Protective earth (PE)
3.3.2 Power-on sequence
(1) Power-on procedure
1) Always wire the power supply as shown in above section 3.1 using the magnetic contactor with
the main circuit power supply (L1/L2/L3). Configure up an external sequence to switch off the
magnetic contactor as soon as an alarm occurs.
2) Switch on the control circuit power supply (L11 and L21) simultaneously with the main circuit
power supply or before switching on the main circuit power supply. If the control circuit power
supply is turned on with the main circuit power supply off, and then the servo-on command is
transmitted, [AL. E9 Main circuit off warning] will occur. Turning on the main circuit power supply
stops the warning and starts the normal operation.
3) The servo amplifier receives the servo-on command in 3 s to 4 s + network initial communication
time after the main circuit power supply is switched on.
(Refer to (2) of this section.)
Supply the following power to L11 and L21.
Servo amplifier
Power
1-phase 200 V AC to
240 V AC, 50 Hz/60 Hz
1-phase 380 V AC to
480 V AC, 50 Hz/60 Hz
1-phase 100 V AC to
120 V AC, 50 Hz/60 Hz
Connect the servo amplifier power output (U, V, and W) to the servo motor power input (U, V,
and W) directly. Do not let a magnetic contactor, etc. intervene. Otherwise, it may cause a
malfunction.
This terminal is used for a power regeneration converter, power regeneration common
converter and brake unit.
Refer to section 11.3 to 11.5 for details.
Connect it to the grounding terminal of the servo motor and to the protective earth (PE) of the
cabinet for grounding.
POINT
The output signal, etc. may be unstable at power-on.
Description
MR-J4-10TM to
MR-J4-60TM4 to
MR-J4-22KTM
MR-J4-22KTM4
L11/L21
3 - 18
MR-J4-10TM1 to
MR-J4-40TM1
L11/L21
L11/L21
Advertisement
Table of Contents
