3. Wiring

3.1 Main Circuit Wiring
Please observe the following instructions while wiring the main circuit.

3.1.1 Names and Functions of Main Circuit Terminals

3.1.2 Typical Main Circuit Wiring Examples
 Single-phase 200V ProNet-A5A～04A

Note
1.The L1,L2,L3 and L1C,L2C terminals wiring method of ProNet-A5A～04Aservo drives is different from other ProNet series servo drives. Please note the specific terminal definition while wiring.
2.The main circuit power supply of ProNet-A5A～04A is Single-phase 200V.
3.External regenerative resistor for ProNet-A5A～04A is provided by customer, the model of 60W,50Ωresistor is recommended.
4.Change Pn521.0 from “1” to “0” when using the external regenerative resistor in ProNet-A5A～04A servo drives.

 Three-phase200V ProNet-08A～50A

 Three-phase 400V ProNet-10D～50D

3.2 I/O Signals
3.2.1 Examples of I/O Signal Connections

The I/O signal connections diagram of the ProNet-□□□MG servo drives is as shown in the following figure.

The I/O signal connections diagram of the ProNet-□□□EG-EC servo drives is as shown in the following figure.

3.2.2 I/O Signal Names and Functions
 Input Signals
The input signals description of ProNet-□□□MG servo drives is as shown in the following table.

The input signals description ofProNet-□□□EG-EC servo drives is as shown in the following table

 Output signals
The output signals description ofProNet-□□□MG servo drives is as shown in the following table

The output signals description of ProNet-□□□EG-EC servo drives is as shown in the following table

3.2.3 I/O Signal Connector (CN1) Terminal Layout
The signals description in CN1 terminal of ProNet-□□□MG servo drives is as shown in the following table.

The signals description in CN1 terminal of ProNet-□□□EG-EC servo drives is as shown in the following table

Note:The functions allocated to the following input and output signals can be changed by using the parameters.
·Input signals:/S-ON,/P-CON,P-OT,N-OT,/ALM-RST,/CLR,/PCL,/NCL,SHOM,ORG
·Output signals:/TGON,/S-RDY,/COIN,/HOME
Please refer to A.3 Parameters in details for detailed information.

3.2.4 Interface Circuit
This section shows examples of servo drive I/O signal connection to the host controller.

■Interface for Analog Reference Input Circuit
Analog signals are either speed or torque reference signals at about 40kΩimpedance, and the maximum allowable voltages for input signals is ±10V.

■Interface for Sequence Input Circuit
The sequence input circuit interface connects through a relay or open-collector transistor circuit.Select a low-current relay otherwise a faulty contact will result

■Interface for Line Driver Output Circuit
The amount of two-phase (phase A and phase B) pulse output signals (PAO,/PAO,PBO,/PBO) and zero-point pulse signals(PCO,/PCO) are output via line-driver output circuits.Normally, the servo drive uses this output circuit in speed control to comprise the position control system at the host controller. Connect the line-driver output circuit through a line receiver circuit at the host controller.

■Interface for Sequence Output Circuit
Photocoupler output circuits are used for Servo Alarm (ALM), Servo Ready(S-RDY), and other sequence output signal circuits.Connect a photocoupler output circuit through a relay circuit

3.3 Wiring Encoders
3.3.1 Connecting an Encoder(CN2)
Absolute Encoders

Incrementa Encoders

3.3.2 Encoder Connector(CN2) Terminal Layout

Absolute Encoder

Incremental Encoder

3.4 Communication Connection
3.4.1 Communication Connector(CN3) Terminal Layout
The signals description in CN3 terminal of ProNet-□□□MG servo drives is as shown in the following table

Note:
1. Do not short terminal 1 and 2 of CN3.
2. If connecting more than 16 CAN nodes,please contact ESTUN customer service.

The signals description in CN3 terminal of ProNet-□□□EG-EC servo drives is as shown in the following table.

3.4.2 Communication Connector(CN4) Terminal Layout
The signals description in CN4 terminal of ProNet-□□□MG servo drives is as shown in the following table.

The signals description in CN4 terminal of ProNet-□□□EG-EC servo drives is as shown in the following table.

3.5 Standard Wiring Examples
3.5.1 Single-phase200VProNet-A5A～04A
The standard wiring example of ProNet-□□□MG servo drives is as shown in the following figure.

The standard wiring example of ProNet-□□□EG-EC servo drives is as shown in the following figure

Note
1.The main circuit power supply of ProNet-A5A～04Ais Single-phase 200V.
2.External regenerative resistor for ProNet-A5A～04Ais provided by customer, the model of 60W, 50Ωresistor is recommended.
3.Change Pn521.0 from “1” to “0” when using the external regenerative resistor in ProNet- A5A～04A servo drives.

3.5.2 Three-phase 200V ProNet-08A～50A
The standard wiring example of ProNet-□□□MG servo drives is as shown in the following figure.

The standard wiring example of ProNet-□□□EG-EC servo drives is as shown in the following figure

3.5.3 Three-phase 400V ProNet-10D～50D
The standard wiring example of ProNet-□□□MG servo drives is as shown in the following figure.

The standard wiring example of ProNet-□□□EG-EC servo drives is as shown in the following figure.

3.5.4 Position Control Mode

NOTE: this function is available for ProNet-□□□MG servo drives only.

3.5.5 Speed Control Mode
NOTE: this function is available for ProNet-□□□MG servo drives only.

3.5.6 Torque Control Mode
NOTE: this function is available for ProNet-□□□MG servo drives only.

3.6 Wiring for Noise Control
3.6.1 Noise Control
The servodrive uses high-speed switching elements in the main circuit. It may receive "switching noise"from these high-speed switching elements.
To prevent malfunction due to noise, take the following actions:
• Position the input reference device and noise filter as close to the servo drive as possible.
• Always install a surge absorber in the relay, solenoid and electromagnetic contactor coils.
• The distance between a power line (servomotor main circuit cable) and a signal line must be at least 30 cm.Do not put the power and signal lines in the same duct or bundle them together.
• Do not share the power supply with an electric welder or electrical discharge machine. When the servo drive is placed near a high-frequency generator, install a noise filter on the input side of the power supplyline. As for the wiring of noise filter, refer to (1) Noise Filter shown below.
• For proper grounding technique, refer to (2) Correct Grounding.

(1) Noise Filter
Please install a noise filter in the appropriate place to protect the servo drive from external noise interference.
Notice:

•For ground wires connected to the ground plate, use a thick wire with a thickness of at least 3.5 mm2
(preferably, plain stitch cooper wire)
• should be twisted-pair wires.
•When using a noise filter, follow the precautions in 3.6.2 Precautions on Connecting Noise Filter.

(2) Correct Grounding
Take the following grounding measures to prevent the servo drive from malfunctioning due to noise.

￭ Grounding the Motor Frame
If the servomotor is grounded via the machine, a switching noise current will flow from the servo drive main circuit through the servomotor stray capacitance.
Always connect servomotor frame terminal FG to the servodrive ground terminal. Also be sure to ground the ground terminal .
￭ Noise on the I/O Signal Line
If the I/O signal line receives noise, ground the 0 V line (SG) of the reference input line. If the main circuit wiring for the motor is accommodated in a metal conduit, ground the conduit and its junction box. For all grounding, ground at one point only.

(3)Precautions on Installing on the Control Panel
￭When the servo drive is installed on the control panel, a piece of metal plate should be fixed. It is used for fixing the servo drive and other peripheral devices. The noise filter should be installed on the metal plate, and closed to the hole drill through power lines on control panel. Use screws to fix the noise filter to the metal plate. The grounding terminals of noise filter connects to the grounding terminals of control panel.

￭Servo drive should be fixed on a piece of metal plate. Make sure the heat sink towards ground. The grounding terminals of servo drive connect to the grounding terminals of control panel.

3.6.2 Precautions on Connecting Noise Filter

(1) Noise Filter Brake Power Supply
Use the noise filter Manufactured by SCHAFFNER at the brake power input for servomotors with holding brakes.
Relationship between servo drive power and noise filter current:

Note:
1. A single-phase servomotor should apply a two-phase filter. A three-phase servo drive should apply a three-phase filter.
2. Choose the right filter according the specifications of operating voltage, current, and manufacturer.
3. Recommended noise filter of 400V servo drive:

(2) Precautions on Using Noise Filters
Do not put the input and output lines in the same duct or bundle them together.

Separate the noise filter ground wire from the output lines.
Do not accommodate the noise filter ground wire, output lines and other signal lines in the same duct or bundle them together.

Install the noise filter shield directly to the ground plate. Do not install the noise filter to the painted control panel.

If a noise filter is located inside a control panel, connect the noise filter ground wire and the ground wires from other devices inside the control panel to the ground plate for the control panel first, then ground these wires.

3.7 Installation Conditions of EMC Directives
To adapt a combination of a servomotor and a servodrive to EMC Directives (EN61326-1:2006), the following conditions must be satisfied.

(1) EMC Installation Conditions
This section describes the installation conditions that satisfy EMC guidelines for each servo drive model.
This section describes the EMC installation conditions satisfied in test conditions prepared by ESTUN. The actual EMC level may differ depending on the actual system’s configuration, wiring, and other conditions

Notes: The example above shows three-phase 200VAC servo drive connection.

(2) Cable Core and Cable Clamp
(a) Attaching the Ferrite Core
The diagram shows two turns in the cable.
The table shows the cable and the position where the ferrite core is attached.

(b) Recommended Ferrite-core

(d) Shield Box
A shield box, which is a closed metallic enclosure, should be used for shielding magnetic interference. The structure of the box should allow the main body, door, and cooling unit to be attached to the ground. The box opening should be as small as possible.
Note：
Please arrange the system according to the above methods. For electromagnetic interference caused by customers not using recommended arrangement,ESTUN will not bear the legal responsibility.

3.8 Using More than One Servo Drive
The following diagram is an example of the wiring when more than one servo drive is used.
Connect the alarm output (ALM) terminals for the three servodrives in series to enable alarm detection relay1RY to operate.
When the alarm occurs, the ALM output signal transistor is turned OFF.
Multiple servos can share a single molded-case circuit breaker (QF) or noise filter. Always select a QF or noise filter that has enough capacity for the total power capacity (load conditions) of those servos.

Notes:
1.Power supply phase-S should connect to ground terminals.
2.The example above shows three-phase 200VAC servo drive connection.