Mitsubishi Electric MELSEC iQ-F Series FX5 User Manual page 268

Condition 2: Positioning address
The following positioning addresses can be specified for the positioning module:
Unit setting
mm
inch
pulse
degree
■Example 1
Using the formula 1, this example calculates the positioning address which can be specified in the system with the OP
address 214740000.0 (μm).
• Expression 1: (Positioning address) = (Movement amount per pulse) × (Number of output pulses) + (OP address)
• Condition
Item
Movement amount per pulse
Encoder resolution
• Calculation of the upper limit value and lower limit value of positioning addresses
Upper limit value /lower limit value of positioning addresses
Upper limit value
Lower limit value
-214748364.8
Specifiable positioning address range
Range not usable by the
absolute position detection
system
■Example 2
This example shows the positioning address specification range that can be specified when degree is selected as the unit.
• In the absolute position detection system, the rage of the available positioning addresses is from 0° to 359.99999°,
regardless of the OP address.
• For positioning in one direction, control from maximum to minimum (for address increase: 359.99999°→0°/for address
decrease: 0°→359.99999°) cannot be exercised.
Range not usable by the absolute position detection
system. The current value cannot be successfully
restored when the power is turned on or after a reset.
Zero point
359.99999°
• Set the upper/lower limits of the software stroke limit to values between 0° and 359.99999° when using the absolute
position detection system.
12 CONTROL SUB FUNCTION
266
12.7 Absolute Position Restoration Function
187897273.6
Range usable by the
absolute position detection
359.99999°
0° 0°
Range usable by the absolute position
detection system (0 - 359.99999°)
Range of positioning addresses
-214748364.8 to 214748364.7μm
-21474.83648 to 21474.83647inch
-2147483648 to 2147483647 pulse
0 to 359.99999°
Value
0.1 μm
8192 pulse/rev
Range of positioning addresses
0.1 × 268427264 + 214740000.0 = 241582726.4 μm
0.1 × (-268427264) + 214740000.0 = 187897273.6 μm
214748364.7
(zero point)
214740000.0
system
Not configurable
Range not usable by the absolute
position detection system. The
current value cannot be successfully
restored when the power is turned
on or after a reset.
Unit: μm
241582726.4