Mitsubishi Electric QD77MS User Manual page 51

Restrictions
If "1: Feed current value" or "2: Real current value" is set in "[Pr.300] Servo input axis type",
set "1: Update feed current value" in "[Pr.21] Feed current value during speed control" to
start the speed position change control. If "0: Do not update feed current value" or "2: Clear
feed current value to zero" is set in [Pr.21], the error "Speed-position switching control start
in servo input axis not possible" (error code: 609) will occur and the control will not start.
Units for the servo input axis
The position units and speed units for the servo input axis are shown below for the setting
"[Pr.300] Servo input axis type" and "[Pr.1] Unit setting".
Setting value of "[Pr.300]
Servo input axis type"
1: Feed current value
2: Real current value
3: Servo command value
4: Feedback value
Setting value of "[Pr.300]
Servo input axis type"
1: Feed current
2: Real current value
3: Servo command value
4: Feedback value
(Noet-1): When "[Pr.83] Speed control 10 x multiplier setting for degree axis" is valid, this will be the speed unit " 10
(Range: -21474836.48 to 21474836.47 [degree/min]).
POINT
(1) When "1: Feed current value" or "3: Servo command value" is set in "[Pr.300]
(2) When a home position return for the axis where "1: Feed current value" or "2:
Table 2.1 Servo input axis position units
Setting value of
Servo input axis
"[Pr.1] Unit setting"
0: mm
1: inch
2: degree
3: PLS
—
Table 2.2 Servo input axis speed units
Setting value of
Servo input axis
"[Pr.1] Unit setting"
0: mm
1: inch
-3
10
2: degree
3: PLS
—
Servo input axis type", and the servo input axis becomes servo OFF by the
servo alarm or forced stop, the amount of value change may be large. This
can be prevented by setting "2: Real current value" or "4: Feedback value" in
"[Pr.300] Servo input axis type".
Real current value" is set in "[Pr.300] Servo input axis type" is performed, if the
servo input axis operation during home position return is used as the input
value, the input is stopped in the midway of home position return.
When the servo input axis operation during home position return is used as the
input value, set "3: Servo command value" or "4: Feedback value" in "[Pr.300]
Servo input axis type".
position unit
-4
10 mm
-1
(10 μm)
-5
10 inch
-5
10 degree
PLS
PLS
speed unit
-2
10 mm/min
-21474836.48 to 21474836.47 [mm/min]
-3
10 inch/min
-2147483.648 to 2147483.647 [inch/min]
(Note-1)
degree/min -2147483.648 to 2147483.647 [degree/min]
PLS/s
PLS/s
2 - 3
Chapter 2 Input Axis Module
Range
-214748.3648 to 214748.3647 [mm]
(-214748364.8 to 214748364.7 [μm])
-21474.83648 to 21474.83647 [inch]
-21474.83648 to 21474.83647 [degree]
-2147483648 to 2147483647 [PLS]
-2147483648 to 2147483647 [PLS]
Range
-2147483648 to 2147483647 [PLS/s]
-2147483648 to 2147483647 [PLS/s]
(Note-1)
-2
degree/min"