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Sigma II User's Manual
4.2.2
Position Control by Host Controller
If position control from the host controller has not been confirmed, disconnect the servomo-
tor from the equipment and perform a trial operation, otherwise the servomotor may run out
of control.
Check servomotor operation as described in the following table.
Controller
Reference
JOG Operation
(Constant
Motor speed
Reference Speed
Input from Host Con-
troller)
Simple
Number of motor
Positioning
rotations
Overtravel
Whether the servomotor stops
(P-OT and
rotating when P-OT and N-OT
N-OT Used)
signals are applied
Overtravel
Whether the servomotor stops
(P-OT and
rotating when P-OT and N-OT
N-OT Used)
signals are applied
4.3 Minimum Parameters and Input Signals
This section describes the minimum parameters and input signals required for trial operation.
4.3.1
Parameters
See 7.1.6 Operation in parameter Setting Mode for more details on setting parameters.
Turn OFF power once after changing any parameter except Pn300. The change will be valid
when power is restored.
Reference
speed
Host
controller
Position control
Check
Check motor speed as follows:
• Use the speed monitor (Un000) on the Panel
Operator.
• Run the servomotor at low speed. Input a ref-
erence speed of 60rpm, for example, to see if
the servomotor makes one revolution per sec-
ond.
Input a reference equivalent to one servomotor
rotation and visually check to see if the shaft
makes one revolution.
Check to see if the servomotor stops when P-OT
and N-OT signals are input during continuous ser-
vomotor operation.
Check to see if the servomotor stops when P-OT
and N-OT signals are input during continuous ser-
vomotor operation.
SGDH
M
servo
amplifier
Trial operation for
servomotor without loa
Speed control
Procedure
4-11
Chapter 4: Trial Operation
Description
Check the parameter setting
at Pn300 to see if the refer-
ence speed gain is correct.
Check the parameter setting
at Pn201 to see if the number
of dividing pulses is correct.
Review P-OT and N-OT wiring
if the servomotor does not
stop.
Review P-OT and N-OT wiring
if the servomotor does not
stop.
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