4.3  Trial Operation for Servomotor without Load from Host Reference
4-3
4.3 Trial Operation for Servomotor without Load from Host 
Reference
Check the following items before performing trial operation of the servomotor without load from host refer-
ence.
• Check that servomotor operation reference input from the host controller to the multi-winding drive unit and 
I/O signals are set properly.
• Check that the wiring between the host controller and multi-winding drive unit and the polarity of the wiring 
are correct.
• Check that all operation settings for the multi-winding drive unit, SERVOPACKs, and converters are cor-
rect.
Perform the trial operation using the following procedure.
Note: To perform trial operation of a servomotor with a brake, refer to 4.5 Trial Operation of Servomotor with Brakes.
Trial Operation in Speed Control
Refer to 4.4.2 Trial Operation in Speed 
Control.
Trial Operation in Position Control
Refer to 4.4.4 Trial Operation in Position
Control.
Position Control with Host Controller 
Refer to 4.4.3 Trial Operation under Position 
Control from the Host with the SERVOPACK
 used for Speed Control. 
Perform the trial operation of the servomotor with the machine. 
Refer to 4.5 Trial Operation with the Servomotor Connected to the Machine.
Preparations
Trial Operation 
in Each Control 
Trial Operation 
in Combination 
with Machine
Actual Operation
Confirm the check items and precautions 
before trial operation. 
Refer to 4.1 Inspection and Checking before
Trial Operation.
Check the connection and status of the input 
signal circuits. 
Refer to 4.4.1 Inspecting Connection and 
Status of Input Signal Circuits.
 
Refer to 4.1 Inspection and Checking 
before Trial Operation.
Refer to 4.3.1 Inspecting Connection 
and Status of Input Signals.
Refer to 4.3.4 Trial Operation in Position 
Control.
Refer to 4.3.2 Trial Operation in Speed 
Control.
Refer to 4.3.3 Trial Operation under Position 
Control from the Host Controller with the 
Multi-Winding Drive Unit Used for Speed 
Refer to 4.4 Trial Operation with the Servomotor Connected to the Machine.