11 - 17
MELSEC-Q
11 MANUAL CONTROL
Precautions during operation
(1) Acceleration/deceleration processing is not carried out during inching
operation.
(Pulses corresponding to the designated inching movement amount are output
at 1.8ms. The movement direction of inching operation is reversed and, when
backlash compensation is carried out, first pulses corresponding to the
backlash amount are output at 1.8ms and then pulses corresponding to the
designated inching movement amount are output in the next 1.8ms.)
The "
Cd.17
JOG speed" is ignored even if it is set. However, the error
"Inching movement amount error" (error code: 301) will occur in the following
cases:
(
Cd.16
Inching movement amount) x (A) > (
Pr.31
JOG speed limit value)
Where (A) is as follows.
• When the unit is pulse: 562.5
• When the unit is other than pulse: 337.5
(2) Set a value other than a "0" in "
Cd.16
Inching movement amount".
If a "0" is set, the operation will become JOG operation (Refer to Section 11.2
"JOG operation".
Operations when stroke limit error occurs
When the operation is stopped by hardware stroke limit error or software stroke
limit error, the inching operation can be performed in an opposite way (direction
within normal limits) after an error reset. (An error will occur again if JOG start
signal is turned ON in a direction to outside the stroke limit.)
Inching operation possible
Upper/lower
limit signal
Inching operation
V
Inching operation not possible
ON
OFF
To Next Page
Loading...
