Mitsubishi Electric MELSEC iQ-R16MTCPU, Programming Manual

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3 PARAMETERS FOR POSITIONING CONTROL
3.6 External Signal Parameter
Contact
Set the signal contact used as the external signal.
■
Normal open
■
Normal close
Precision
Set the precision when the DOG signal is used for the count method home position return or the speed-position switching
control.
*1 When an actual device with the inter-module synchronization setting is used, the inter-module synchronization cycle is used.
*2 When the function is not enabled, a moderate error (error code: 30D2H) occurs.
*3 Detection precision of the high precision setting of the bit device
External signal Details
FLS signal ON The upper stroke limit is detected, and "operation of direction that the feed current value increase" cannot be executed.
RLS signal ON The lower stroke limit is detected, and "operation of direction that the feed current value decrease" cannot be
executed.
STOP signal ON The stop signal is detected, and an operation stops.
DOG signal ON The proximity dog/speed-position switching signal is detected, and the home position return operation and speed-
position control switching is executed.
External signal Details
FLS signal OFF The upper stroke limit is detected, and "operation of direction that the feed current value increase" cannot be executed.
RLS signal OFF The lower stroke limit is detected, and "operation of direction that the feed current value decrease" cannot be
executed.
STOP signal OFF The stop signal is detected, and an operation stops.
DOG signal OFF The proximity dog/speed-position switching signal is detected, and the home position return operation and speed-
position control switching is executed.
CAUTION
• For the stroke limit wiring, always use negative logic (normally closed contact). Using the positive logic (normally open contact) may cause serious accidents.
• The input signal of the servo amplifier is always turned OFF when the communication with the servo amplifier is disconnected. If using the state of the
external signal of the disconnected axis ([St.1071] External signals FLS (R: 32n/Q: M2411+20n) / [St.1072] External signals RLS (R: 32n/
Q: M2412+20n) / [St.1074] External signals DOG/CHANGE (R: 32n/Q: M2414+20n)) as the external signal of another axis that is not disconnected,
design the system so that the machine will not go into a dangerous state due to the connection state of the servo amplifier.
Precision Signal type Setting required on the module side Detection precision [ μ s]
General Bit device None 222
*1
Amplifier input (DI3) None • Operation cycle 1.777 [ms] or less: Operation cycle
• Operation cycle 3.555 [ms] or more: 3555
High precision Bit device
(Actual X device) • Enable the inter-module synchronization
function.
*2
• Set the input response time.
*3
Input response time
[ms] Detection precision
Theoretical value [ μ s] Measured value [ μ s]
0.10 4.9 7
0.20 9.9 12
0.40 19.8 22
0.60 25.0 27
1.00 39.5 41
5.00 158 160
10.00 316 318
20.00 630 632
70.00 2500 2502