3. Wiring
3.1 Main Circuit Wiring
Please observe the following instructions while wiring the main circuit.
3.1.1 Typical Main Circuit Wiring Examples
ETS-101010APC-CAN/ETS-1010APC-CAN
Note :The wiring of ETS two-axis servo drive does not include the gray part of graph
ETS-101010APG-CAN/ETS-1010APG-CAN
3.1.2 Names and Functions of Main Circuit Terminals
3.2 I/O Signals
3.2.1 Examples of I/O Signal Connections
Note: The wirings of CN1_A、CN1_B、CN1_C are the same.
3.2.2 I/O Signal Connector (CN1_A/CN1_B/CN1_C) Terminal Layout
Notes：
1.The list of CN1_A、CN1_B、CN1_C about I/O Signal Names and Functions are the same.
2.(*)The signals of CN1_A/B/C-1、2，CN1_A/B/C-5、6，CN1_A/B/C-7、8 can be modified by Pn511；
(*)The signals of CN1_A/B/C-10、11、12、13 can be modified by Pn509；
(*)The signals of CN1_A/B/C-14、15、16、17 can be modified by Pn510；
Please refer to A.3 Parameters in details for detailed information.
Notes ：
1. Spare terminals can not be used for relay purpose.
2. Connect shielded cable wires of I/O signals to connector shell(frame grounding).
3.2.3 I/O Signal Names and Functions
3.2.4 Interface Circuit
This section shows examples of servo drive I/O signal connection to the host controller.
■Interface for input circuit
The 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 encoder and servo drive output circuits
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
Photo-coupling isolation output is required for output signals of servo alarm, positioning complete and brake interlock
Note:
Maximum voltage should be no more than 30VDC, and maximum current should be no more than 50mA.
3.3 Wiring Encoders
3.3.1 Connecting an Encoder(CN2_A/ CN2_B/ CN2_C)
ETS-101010APC-CAN/ETS-1010APC-CAN
ETS-101010APG-CAN/ETS-1010APG-CAN
3.3.2 Encoder Connector(CN2_A/ CN2_B/ CN2_C) Terminal Layout
ETS-101010APC-CAN/ETS-1010APC-CAN
ETS-101010APG-CAN/ETS-1010APG-CAN
3.4 Communication Connection（CN3/CN4）
Note: Do not short terminal 1 and 2
3.5 Standard Wiring Example
ETS-101010APC-CAN/ETS-1010APC-CAN
Connect Shield to Connector Shell
Note :The wiring of ETS two-axis servo drive does not include the gray part of graph
CN1_A、CN1_B、CN1_C:
CN3\CN4:
ETS-101010APG-CAN/ETS-1010APG-CAN
Note :The wiring of ETS two-axis servo drive does not include the gray part of graph
CN1_A、CN1_B、CN1_C:
CN3\CN4:
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. (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.
Connect the noise filter ground wire directly to the ground plate. Do not connect the noise filter ground wire to other ground wires.
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.
