YASKAWA SGLFW User Manual page 292

When Position Control is configured at the Host
INFO
Analog speed
reference
Host
Position control
When the SERVOPACK conducts speed control and position control is conducted at the host controller, perform the oper-
ations below, following the operations in 9.3.2 Operating Procedure in Speed Control Mode (Pn000 = n.
previous page.
Step
9 Check the input signal circuit again, and check that
the speed reference input (voltage between the V-
REF and SG) is 0 V.
10 Turn ON the servo ON (/S-ON) input signal.
11 Send the command for the movement amount easy
to check (for example, 1 cm) from the host control-
ler in advance, and check the sent movement
amount and actual movement distance by visual
inspection and the Un00D (feedback pulse
counter)[pulse].
12 If the sent movement amount and actual movement
distance in step 11 are not equal, correctly set the
Pn281 (PG divider) outputting the encoder pulse
from the SERVOPACK.
13 When the speed reference input is set to 0 V and
servo OFF status enters, the trial operation for posi-
tion control with the host controller is completed.
9.3 Trial Operation for Linear Servomotor without Load from Host Reference
M
SERVOPACK
Speed control
Description Check Method and Remarks
Refer to the above figure for input signal circuit.
If the linear servomotor moves at extremely slow
speed, refer to 9.7.3 Adjusting Offset, and use the ref-
erence voltage offset to keep the servomotor from
moving.
Refer to 8.1.3 Basic Mode Selection and Operation for
how it is displayed.
Un00D (feedback pulse counter) [pulse]
Refer to 9.7.7 Encoder Signal Output for how to set.
Encoder output resolution (Pn281 [P/Pn280]):
The number of encoder pulses per scale pitch
−
0 ) on the
9
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