3. START-UP PROCEDURE
There are four channel switches above the 7-segment LED behind the
terminal board cover on the front of the servo amplifier. These switches
should be set as described below before use of the servo amplifier.
The switches are sequentially numbered 1, 2, 3, and 4 with the one
at the bottom as switch 1. The OFF position is on the left, and the ON
position on the right.
(2) Switch 1 setting
The setting of switch 1 varies with the interface type used between the
NC and servo amplifier.
If the setting is incorrect, an alarm occurs.
If the load is light, the motor may keep running.
ON Type B interface
OFF Type A interface
• The following NC unit has the type interface.
FS-0C, FS-15A, FS-15B, FS-16A, FS-16B, FS-18A, FS-21TA,
• The following NC unit has the type B interface.
FS-20, FS-21TB, FS-21GA, FS-16B, FS-18B, PM-H
(3) Switch 2 setting
For the SVU, set switch 2 to off.
For the SVUC, set switch 2 to on.
If the setting is incorrect, the VRDY OFF alarm my occur.
(4) Switch 3 and 4 setting
The setting varies depending on the regenerative discharge resistance