Chapter 3. Wiring and Signals
3-7
3.3.2 Turning ON/Off of power supply
As the main circuit of the servo driver is designed in condenser input type, high charging current
(charging time approximately 03-0.5 seconds) flows when main power is connected. If the main
power supply is turned ON/OFF frequently, the main circuit element may be deteriorated leading
to an error. Use SVONEN (CN1-18) terminal and Stop (CN1-13) terminal to start or stop the motor.
The following is an example of wiring showing how to turn off/on power supply.
Voltage AC
200~230V
50/60Hz
ALARM
GND24
24V
MCCB1
1MC
Regenerative resistor
20
24
CN1
CN1
T
S
R
(Note1)
U
V
W
E
Servo
motor
Detector
U
V
W
CN2
P
B
FDA-5000
(Input)
(Output)
NF
r
t
(Note2)
1Ry
1Diode
Main power OFF
Main power ON
1MC
1Ry
Surge killer
1MC
y Note 1: NF is an abbreviation for Noise Filter. Use this to prevent infiltration of noise from
external sources.
y Note 2: For FDA-5005-75 type, connect single-phase AC220[V] to the r and t terminals of
spare power supply.
FDA-5001-4 type is not provided with the r and t terminals.
(Caution!)
1) It takes approximately 1-2 seconds before Alarm signal is activated after power is connected.
Press power switch for at least 2 seconds or longer.
2) If the main power is connected immediately after power is shut off, Power Fail (AL-04) alarm
may occur. Connect power at least 10 seconds after the power is turned off.
3) The above wiring diagram shows that only the main power is turned off when alarm occurs and
you can check the details of the alarm.
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