Leadshine ES-DH1208 - Power Supply Selection; Multiple Drives; Selecting Supply Voltage

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Hardware installation manual of the ES-DH series drives

Power Supply Selection

To achieve good driving performances, it is important to choose a suitable supply voltage and use a

matching current value. Generally speaking, supply voltage determines the high speed performance

of the motor, while output current determines the output torque of the driven motor (particularly at

lower speed). Higher supply voltage will allow higher motor speed to be achieved, at the price of

more noise and heating. If the motion speed requirement is low, it’s better to use lower supply

voltage to decrease noise, heating and improve reliability.

Multiple Drives

It is recommended to have multiple drives to share one power supply to reduce cost, if the supply

has enough capacity. To avoid cross interference, DO NOT daisy-chain the power supply input pins of

the drives. Instead, please connect them to power supply separately.

Selecting Supply Voltage

Higher supply voltage can increase motor torque at higher speeds, thus helpful for avoiding losing

steps. However, higher voltage may cause bigger motor vibration at lower speed, and it may also

cause over-voltage protection or even drive damage. Therefore, it is suggested to choose only

sufficiently high supply voltage for intended applications, and it is suggested to use power supplies

with theoretical output voltage of drive’s minimum + 10% to drive’s maximum – 10%, leaving room

for power fluctuation and back-EMF.

Select Power Supply Voltage

Driver Input Voltage

Driver Upper Input limit

Power Supply Voltage

Heating

Vibration

Maximum Safe Rating

Driver Upper Input limit – 10%

Driver Lower Input limit + 10%

Driver Lower Input limit

Minimum Safe Rating

Torque

Speed

Safe Region