DA98E Series AC Servo Drive Unit User Manual
18
3.1 Standard Connection
The external connection of the drive unit depends on its control mode.
1
）
Position control mode:
Figure 3-1 shows the standard connection for the position control mode.
2
）
Speed control mode:
Figure 3-1 shows the standard connection for the speed control mode.
3
）
Wiring
（
1
）
TB Power Terminals
z
Wire sizes: Diameters of the wires to terminals R, S, T, PE, U, V and W
≥
1.5mm
2
(AWG14-16),
and those of terminals r and t
≥
1.0 mm
2
(AWG16-18)
z
Grounding: The ground wire shall be big and short as much as possible and the drive unit and
servomotor share the PE terminal.
z
JUT-1.5-4 pre-insulated cold-pressed terminals are used for terminal connection. Always
connect them securely.
z
It is recommended to supply power to the unit using a three-phase insulating transformer to
minimize the potential of electric shock.
z
It is recommended to supply power through a noise filter in order to improve the anti-jamming
capacity of the unit.
z
Install non-fusible (NFB) breaker so that the external power supply can be duly disconnected
in the event of drive unit fault.
（
2
）
Control Signals BUS1 and BUS2 and Feedback Signal CN1
z
CAT-5e UTP engineering cables are used control signal cables;
z
Sizes of the feedback signal wires: A shielded cable (it is advisable to use a twisted shielded
cable) whose wire diameter shall not be less than 0.12mm2(AWG24-26) and shielding layer shall be
connected to the Terminal FG.
z
Cable length: The power cord shall be as short as possible and the length of the feedback
signal CN1 cable must not be longer than 30m.
z
Wiring: The wires shall be routed away from power lines to prevent cross-interference.
z
Fit a surge arresting element for the inductive components (coils). Connect DC coils and a
freewheel diode in parallel reversely. Connect AC coils and resistance-capacitance absorbing circuit
in parallel.
Summary of Contents for DA98E Series
Page 1: ......
Page 20: ...Chapter 1 Summary 11 2 Appearance of Servomotor ...
