EMSD5 AC Servo Manual
Chapter 4 Wiring and Introduction
13
4.1.2 Wiring Introduction
Wiring Notes:
⚫
The control cable length should be less than 3 meters and the encoder cable length 20
meters.
⚫
Check that the power supply and wiring of L1,L2 or L1,L2,L3 are correct.
⚫
Please do not connect to 380V power supply.
⚫
The output terminals(U,V,W ) must be connected with the servo motor connections(U,V,W )
correspondently, otherwise the servo motor will stop or over speed. However, by
exchanging three-phase terminal cannot cause the motor to reverse; this point is different
with asynchronous motor.
⚫
Earthed wiring must be reliable with a single-point connection.
⚫
Pay attention to the correct direction of freewheel diode which is connected with the delay
at the output terminal, other can cause the output circuit breakdown.
⚫
In order to protect the servo driver from noise interference that can cause malfunction,
please use an insulation transformer and noise filter on the power lines.
⚫
Wiring the power cables(power supply , main circuit ,etc) at a distance over 30cm away
from the control signal cables, do not lay them together.
⚫
Install a non-fuse circuit breaker that can shut off the external power supply immediately
for in case of the servo driver fault.
4.1.3 Electric Wire Specifications
Connect Terminal
Symbol
Wire Specification
Main Power Supply
L1, L2, [L3]
1.5~4mm
2
Servo Motor
U, V, W
1.5~4mm
2
Ground
1.5~4mm
2
Control Signals
CN1
≧
0.14mm2(AWG26), Shielded.
Encoder Signals
CN2
≧
0.14mm2(AWG26), Shielded.
Regenerative
Resistors Terminals
P
、
D/P
、
C
1.5~4mm
2
◆
Must use a twisted pair wire cable for the encoder signal wiring. If the encoder
signal cable is too long(
＞
20m), in which the encoder power supply can be
insufficient, may use multi wires or thick wire for the power supply wiring.
