Table of Contents
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3.1
Example power circuit connections
Precautions
• Connect a magnetic contactor between a power supply and the power supply (L1/L2/L3) of a servo amplifier to configure a
circuit that shuts off the power supply on the servo amplifier side because failure of the servo amplifier may cause smoke
and fire if a magnetic contactor is not connected.
• Use a configuration that shuts off the power supply with ALM (Malfunction).
• Check the servo amplifier model and use the correct power supply voltage.
• Exogenous noise or lightning surges may degrade the characteristics of the surge absorber (varistor) built into the servo
amplifier and damage it.
• In the torque mode, EM2 functions the same as EM1.
• To prevent malfunction, avoid bundling the servo amplifier's power lines (input/output) and signal cables together or running
them parallel to each other. Separate the power lines from the signal cables.
• Provide adequate protection to prevent an unexpected restart after an instantaneous power failure.
• Configure wiring so that the power supply is shut off and the servo-on command is turned off after deceleration to a stop
due to an alarm occurrence, an enabled servo forced stop, or a quick stop command from the controller. Use a molded-
case circuit breaker (MCCB) with the input cables of the main circuit power supply.
3 SIGNALS AND WIRING
20
3.1 Example power circuit connections
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