Mitsubishi Electric MELDAS C6 Interface Manual page 145

B con-
Signal name
tact
—
POSITION SWITCH 1~16
[Function]
This signal notifies that the machine position is within the area set by the parameters.
[Operation]
This signal turns ON when the control axis machine position reaches the range set by the
parameters, and turns OFF when the range is left. The axis name and range are set in parameters
#7501 to #7653.
The validity of this signal differs in the following manner depending on the absolute position
detection or incremental detection.
<For absolute position detection system>
This signal is valid when the power is turned ON after zero point initialization is completed.
<For incremental position detection system>
This signal is not validated until the first zero point return is completed after the power is turned ON.
(PSW1 to PSW16 will all remain OFF until this signal is validated.)
[Example of signal output]
PSW1: ON
PSW2: OFF
PSW3: OFF
PSW4: OFF
PSW5: ON
The setting range of the position switch uses the basic machine coordinate system as a reference.
The dog1 and dog2 setting values are available even if which of them is lager, and the area
between the smaller setting and the larger setting will be used as the signal output range.
A slight delay will occur in the output signal fluctuation due to the actual machine position. The
maximum delay time is as follows.
tmax = 0.06 - TP [s]
TP: Position loop time constant (
6. EXPLANATION OF INTERFACE SIGNALS
6.1 PLC Input Signals (Bit Type: X***)
Signal
abbreviation
PSWn
dog1
dog1 dog2
dog2 dog1
dog2
1
[s])
PGN
6-1-56
1st system
X660~667 X6E0~6E7
X670~677 X6F0~6F7
Machine position
dog1
dog1
2nd system 3rd system
X760~767
X770~777
dog2
dog2