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MELSEC-
A
9 MAIN POSITIONING CONTROL
(2) Current value change using the start No. (No. 9003) for a current
value change
Operation chart
The current value is changed by setting the new current value "Current value
change (RWwm+2 to 3, RWwm+10 to 11)", setting "9003" in the "
Cd.11
Positioning start No.", and turning ON the positioning start signal.
Positioning start signal
Current feed value
50000
0
OFF
ON
Current value changes to the
positioning address designated by
the new current value remote register.
The above chart shows an example
when the positioning address is "0".
[RY(n+1)0, RY(n+1)1]
[RWrn+0 to 1, RWrn+8 to 9]
Restrictions
(1) An error "Outside current value change range" (error code: 514) will occur if
the designated value is outside the setting range when "degree" is set in
"
Pr.1
Unit setting".
(2) An error will not occur even if the designated value is outside the software
stroke limit range.
However, an error "Start outside stroke limit +/-" (error code: 507/508) will
occur at the positioning start.
(3) The current value cannot be changed during stop commands and while the M
code ON signal is ON.
Current value change procedure
The following shows the procedure for changing the current value to a new value.
Turn ON the positioning start signal.
(RY(n+1)0, RY(n+1)1)
Write "9003" in "Positioning start No."
(RWwm, RWwm+8)
1)
2)
3)
Write the current value to "New current value
(RWwm+2 to 3, RWwm+10 to 11)"