(1) When the upper device is the relay output
When using the servo drive's internal 24V power supply:
(2) When the upper device is an open-circuit collector output
When using the servo drive's internal 24V power supply:
When using an external 24V power supply:
Note: Mixed PNP and NPN are not supported!
(1) When the upper device is the relay input
Note: When the host device is a relay input, be sure to connect a freewheeling diode, otherwise the DO port may be damaged.
(2) When the upper device is an optocoupler input
Note: The maximum allowable voltage and current capacity of the optocoupler output circuit inside the servo driver are as follows:
Voltage: DC30V (max).
Current: DC50mA (max).
Command pulses on the upper device side can be selected from two types: differential driver output or open collector output. The maximum input frequency and minimum pulse duration are shown in the table below
(1) When it is a differential method
(2) When it is an open collector method
The encoder's crossover output circuit outputs a differential signal through a differential driver. Usually a feedback signal is provided when a position control system is formed for a higher-level device. On the upper device side, use a differential or optocoupler receiver circuit to receive a maximum output current of 20mA.
The encoder's z-phase crossover output circuit can be used to open the collector signal. Usually a feedback signal is provided when a position control system is formed for a higher-level device. On the host device side, use a photocoupler circuit, relay circuit, or bus receiver circuit to receive.
Note: Be sure to connect the 5V ground of the host device to the GND of the driver, and use a twisted pair shielded wire to reduce noise interference.
The brake is a mechanism that prevents the servo motor shaft from moving and keeps the motor locked when the servo drive is in a non-running state, so that the moving part of the machine will not move due to its own weight or external force.
The brake mechanism built into the servo motor is a fixed special mechanism with non-energized action, and cannot be used for braking purposes, and is only used when the servo motor is kept in a stopped state.
The brake coil is non-polar.
After the servo motor is stopped, the servo opening signal (S-on) should be cut off.
When the motor with built-in brake is running, the brake may make a clicking sound, which has no functional effect.
When the brake coil is energized (the brake is open), magnetic flux leakage may occur at the shaft end and other parts. Please be careful when using instruments such as magnetic sensors near the motor.
There is no polarity in the connection of the input signal of the brake wiring, and the user needs to prepare a 24V power supply. An example of the standard connection between the brake signal BK and the brake power supply is as follows:
The length of the motor brake cable needs to fully consider the voltage drop caused by the cable resistance, and the input voltage needs to be at least 216v。
Note: It is forbidden to share the power supply with other electrical appliances to prevent the voltage or current from decreasing due to the work of other electrical appliances, and eventually causing the malfunction of the brake.