15. MR-J3W-0303BN6 SERVO AMPLIFIER
15 - 16
(c) Selection of the main circuit/control circuit power supply
The inrush current at power on will be large because a resistance for protecting inrush current is not
built-in in the main circuit power supply of the servo amplifier. The electric capacity of the capacitor is
approximately 560 F. When the load characteristic (overcurrent protection criteria) of the power unit is
current fold back method, the power cannot startup. Be careful to select power. Especially when the
power is turned ON/OFF on the power unit output side, approximately 100 s to 300 s instantaneous
current will flowed at power on due to capacitor charge. Therefore, a power unit such as one which
operates overcurrent at 1ms or less cannot be used.
In addition, when using a switching power supply for input power supply of the control circuit power
supply, use a reinforced insulating type. A circuit to protect inrush current at power on is built-in in the
control circuit power supply.
(2) Power-on sequence
(a) Power-on procedure
1) When wiring the power supply, be sure to use a circuit protector for the power supply (24, 0, and PM)
as shown in section 15.3.1. Configure up an external sequence so that the relay connected to PM
turns off when an alarm occurs in both axes of A and B.
2) When using a 48VDC power supply, 24 and 0 should be turned on simultaneously with PM and 0, or
should be turned on before PM and 0. If the control circuit power supply is turned on with the main
circuit power supply off, and then the servo-on command is transmitted, Main circuit off warning
(AL.E9) 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 within 3s after the main circuit power supply is
switched on. (Refer to (2) (b) of this section.)
(b) Timing chart
Servo-on command accepted
ON
OFF
Power supply
ON
OFF
Base circuit
ON
OFF
Servo-on command
(from controller)
95ms
(3s)
95ms
10ms
Содержание MELSERVO-J3W Series
Страница 17: ...8 MEMO ...
Страница 27: ...1 FUNCTIONS AND CONFIGURATION 1 10 MEMO ...
Страница 87: ...4 STARTUP 4 14 MEMO ...
Страница 117: ...5 PARAMETERS 5 30 MEMO ...
Страница 129: ...6 GENERAL GAIN ADJUSTMENT 6 12 MEMO ...
Страница 185: ...10 CHARACTERISTICS 10 8 MEMO ...
Страница 241: ...11 OPTIONS AND AUXILIARY EQUIPMENT 11 56 MEMO ...
Страница 274: ...13 USING A LINEAR SERVO MOTOR 13 25 1 2 3 4 ...