Lenze i950

6.2.11.3 Hardware limit switches
Connecon of the hardware limit switches
The hardware limit switches are assigned to the digital inputs via the Sour
ce for posive hard-
ware limit switch and Source for negave hardware limit switch parameters.
Limit switch source
•
Source for posive hardware limit switch 40x5020:004
•
Source for negave hardware limit switch 40x5020:005
The limit switch evaluaon responds to a posive edge.
If the limit switch connecons for the digital inputs used are to be fail-safe,
chang
e the terminal polarity of the corresponding digital inputs.
Triggering of the hardware limit switches
If either of the hardware limit switches is triggered and the signal at the input = TRUE, the
parametrised error response is executed. 40x500A:104
The error message "HWLimitPos" or "HWLimitNeg" is generated, irrespecve of whether the
a
xis is currently moving and in which direcon the axis is currently moving.
Acknowledge the error in order to move the axis.
Behaviour when retracng the limit switches:
If a limit switch is triggered and the error message is acknowledged, only travel requests in the
opposite direcon (retracng direcon) are possible. Travel requests in the direcon of the
limit switch are aborted in the event of an error.
Diagnoscs
Status word parameter bit 9 40x500A:005 Bit 9
Status word par
ameter bit 10 40x500A:005 Bit 10
Parameter
Address Name / seng range / [default seng] Info
0x500A:104 Response to hardware limit switch error
19 Fault > Applicaon quick stop > Quick stop
21 Fault> Applicaon quick stop > Inverter disa-
bled
0x5020:004 Source of posive hardware limit switch Selecon of the digital inputs for the posive hardware limit switch.
0 FALSE Specicaon of the digital inputs for the posive hardware limit switch.
1 TRUE
2 Digital input 1
3 Digital input 2
4 Digital input 3
5 Digital input 4
0x5020:005 Source of negave hardware limit switch Selecon of the digital inputs for the negave hardware limit switch.
0 FALSE Specicaon of the digital inputs for the negave hardware limit switch.
1 TRUE
2 Digital input 1
3 Digital input 2
4 Digital input 3
5 Digital input 4
Technology applicaon (TA) basic sengs
Moon
sengs
Limitaons
72