Festo CMMS-AS-C4-3A-G2 Description

6 Positioning mode
Festo – GDCP-CMMS/D-FW-EN – 1404NH – Engli sh 157
6.8.3 Timing diagram: Cancelling homing to limit switch/stop
Timing diagram: Homing to limit switch
The timing diagram shows the search for limit switch “0” and the determination of the homing point.
For additional information on the “limit switch” homing method  page 161.
Start positioning
(DIN8)[X1.23]
Stop
(DIN13)[X1.15]
Limit switch 1
(DIN7)[X1.10]
Motion complete
(DOUT1)[X1.12]
Controller read
y
for o
p
eration
(DOUT0)[X1.24]
Common error
(DOUT3)[X1.13]
t1
Velocity
v+
v–
Status wo rd referenced (FCT)
Homing complete
(DOUT…)[X1.…]
t2 t3
t2
t3
“Search”
“Crawl”
t4
 Limit switch 0
(DIN6)[X1.22]
3
1
2
t5
 Limit switch 0
detected
 Homing point
detected
t1 ≤ 5ms
t2 = … ms ( dependent on the acc eleration
ramp)
t3 = … ms ( dependent on the deceleration
ramp)
t4 ≤ 2.5 ms
t5 = … ms ( FCT: Dependent on the parameters
“Message window” and “Damping time” in
the message “Destination reached”)
1 Example: Limit switch with “Normally closed”
switching function
2 Travel curve with “Positive limit switch”
homing methods
3 Travel curve with “Negative limit switch”
homing methods
Fig. 6.23 Timing diagram: S tarting homing to the limit switch via the start positioning signal

Festo CMMS-AS-C4-3A-G2 Specifications

General

Brand	Festo
Model	CMMS-AS-C4-3A-G2
Category	Controller
Language	English