SD710 Series Servo Drive User Manual Chapter 3 Wiring and Installation
7
3.1.5 Main Circuit Wiring Considerations
● The input power line cannot be connected to the outputs U, V and W, otherwise it will cause damage to the servo driver.
● If the cable is bundled and used in a duct, etc., please consider the allow
able current reduction rate as the heat
dissipation conditions become worse.
● When the cabinet temperature is higher than the cable temperature limit value, please use the cable
with larger
temperature limit value, and cable wire is recommended to use Teflon wire; when in low temperature environment, please
pay attention to the cable warming measures, general cable in the low temperature environment, the surface is easy to
harden and break.
● Please ensure that the bending radius of the cable is more than
10 times the outer diameter of the cable itself, in order
to prevent long-term bending from breaking the inner core of the cable.
● Please do not pass or bundle power and signal cables together from the same pipe, to avoid interference, the distance
between them is more than 30cm.
● High voltage may remain inside the drive after the power is turned off. Please do not touch the power terminals
within
5 minutes.
● Do not turn the power ON/OFF frequently. When repeated continuous ON/OFF power is required, keep
it below 1
time/minute. The power supply part of the Servo Drive has capacitors, and a large charging current will flow when the
power supply is ON. Frequent ON/OFF power supply will deteriorate the performance of the main circuit components
inside the driver.
● Please use the ground wire with the same cross
-sectional area as the main circuit cable. If the cross-sectional area of
the main circuit wire is less than 1.6mm
2
, please use 2.0mm
2
ground wire.
● Please connect the servo driver to the earth reliabl
y.
● Do not
power on with loose terminal block screws or loose cable wires, which may cause fire.
3.1.6 Main Circuit Peripheral Power Distribution Specifications
Table 3-4 Main circuit peripheral power distribution specification table
Main circuit
power
Drive Model
Recommended Circuit Breakers
Recommended Contactors
Current(A)
Schneider
Models
Current(A)
Schneider
Models
Single-phase
220V
SD710-1R8A
□A
4
OSMC32N3C4
9
LC1 D09
SD710-3R3A
□A
6
OSMC32N3C6
9
LC1 D09
SD710-5R5A
□A
6
OSMC32N3C6
9
LC1 D09
3.1.7 Spring-type Connector Wiring Method
Spring-type connector type terminals are used for servo drives with 750W or lower power. The following is a detailed
