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3. SIGNALS AND WIRING
(3) Internal speed setting in speed control mode
(a) Speed command and speed
The servo motor is run at the speed set in parameter No. 8 (internal speed command 1) the forward
rotation start signal (ST1) and reverse rotation start signal (ST2) are as in (a), (1) in section 3.4.2.
Generally, make connection as shown below:
SP2
SG
SD
Servo amplifier
(b) Speed selection 2 (SP2) and speed command value
Use speed selection 2 (SP2) to select between the speed set by the internal speed command 1 and
the speed set by the Internal speed command 2 as indicated in the following table:
(Note) External input signals
SP1
Speed command value
0 Internal speed command 1 (parameter No. 8)
1 Internal speed command 2 (parameter No. 9)
Note.0: SP1-SG off (open)
1: SP1-SG on (short)
The speed may also be changed during rotation. In this case, it is increased or decreased according
to the value set in parameter No. 11 or 12.
When the internal speed command 1 is used to command the speed, the speed does not vary with
the ambient temperature.
(c) Speed reached (SA)
As in Section 3.4.2 (2).