6.1 Wiring Main Circuit
6-7
6
Designing a Power ON Sequence
Note the following points when designing the power ON sequence.
• Design the power ON sequence so that main circuit power supply is turned OFF when a servo alarm signal
is output. See the previous circuit figure.
• Hold the power ON button for at least two seconds. The SERVOPACK will output (1Ry is OFF) a servo
alarm signal for two seconds or less when power is turned ON. This is required in order to initialize the
SERVOPACK.
• Select the power supply specifications for the parts in accordance with the input power supply.
Harmonic Suppression
If another device requires for harmonic suppression, connect the DC reactor to the DC main circuit side on
the SERVOPACK. For connecting examples, refer to
6.4.8 DC Reactor for Harmonic Suppression
.
(5) DC Power Supply Input
When using the SGDH SERVOPACK with DC power supply input, use the following power supply and set the
parameter Pn001.2 for ‘1’. Also, read carefully to the following ‘Important’ section.
1. Servomotor returns the regenerative energy to the power supply when regenerating. SERVOPACK does
not regenerate with DC power supply input specifications, so regenerate the energy on the power supply
side.
2. Take appropriate measures to ensure that a high charging current stays inside the SERVOPACK when
power is OFF.
(a) Main Circuit and Control Power Supply Input
The following shows the connection for the main power supply and the control power supply.
IMPORTANT
Power supply
Servo alarm (ALM)
output signal
2.0 s max.
• SGDH SERVOPACK is applicable for both AC and DC power supply input.
However, if the DC power supply input supplies a voltage without setting ‘1’ (for DC power supply input) in
the parameter Pn001.2, the SERVOPACK’s internal elements will burn and may cause fire or malfunction.
When using the SERVOPACK with DC power supply input, confirm the following setting of parameters.
WARNING
IMPORTANT
Terminal Symbol
Name
Functions
1 or
Main circuit plus
terminal
270 V to 320 VDC
130 to 155 VDC for SGDH-
BE SERVOPACK with 100 V input
Main circuit minus
terminal
0 V
L1C
,
L2C
Control power
supply input terminal
270 to 320 VDC, without polarity
130 to 155 VDC for SGDH-
BE SERVOPACK with 100 V input
Содержание SGDH
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