• Drive’s reliable working temperature should be <70℃(158℉), and motor working temperature should be <80℃(176℉);
• It is recommended to use automatic idle-current mode, namely current automatically reduce to 60% when motor stops, so as to reduce Drive heating and motor heating;
• The Drive must be mounted vertically to maximize heat sink area as shown in the following picture. Use forced cooling method to cool the system if necessary.

The P860 has two connectors, connector P1 for control signals connections, and connector P2 for power and motor connections. The following tables are brief descriptions of the two connectors. More detailed descriptions of the pins and related issues are presented in section 4, 5, 9.

The P860 supports PUL/DIR and CW/CCW modes and pulse actives at rising or falling edge. See more information about these settings in Section 13. Default setting is PUL/DIR mode and rising edge active (NPN, and PNP control signal is on the contrary).

Microstep resolutions and output current are programmable, the former can be set from full-step to 102,400 steps/rev and the latter can be set from 0.5A to 5.6A. See more information about Microstep and Output Current Setting in Section 13. However, when it’s not in software configured mode, this Drive uses an 8-bit DIP switch to set microstep resolution, and motor operating current, as shown below:

When it’s not in software configured mode, microstep resolution is set by SW5, 6, 7, 8 of the DIP switch as shown in the following table:

For a given motor, higher Drive current will make the motor to output more torque, but at the same time causes more heating in the motor and Drive. Therefore, output current is generally set to be such that the motor will not overheat for long time operation. Since parallel and serial connections of motor coils will significantly change resulting inductance and resistance, it is therefore important to set Drive output current depending on motor phase current, motor leads and connection methods.Phase current rating supplied by motor manufacturer is important in selecting Drive current, however the selection also depends on leads and connections.

When it’s not in software configured mode, the first three bits (SW1, 2, 3) of the DIP switch are used to set the dynamic current. Select a setting closest to your motor’s required current.

Notes: Due to motor inductance, the actual current in the coil may be smaller than the dynamic current setting, particularly under high speed condition.