Hardware Limit Switches - Lenze i950 Commissioning Manual

6.2.11.3

Hardware limit switches

The resulting setpoint velocity Virtual Master: Set velocity is used for the continuous opera-
tion or cyclic operation of the virtual master.
Fig. 19: Front view of the plug connector X3 with analog input 1
System bus in Velocity (0x5021:152)
Application feedback (B) (0x500B:011)
Set Velocity Virtual Master (0x5045:011)
Analoginput 1 (0x2DA4:005)
Reference Velocity Analoginput 1 (0x5020:009)
Fig. 20: Analog input 1 as speed source
Connection of the hardware limit switches
The hardware limit switches are assigned to the digital inputs via the Source for positive hard-
ware limit switch and Source for negative hardware limit switch parameters.
Limit switch source
• Source for positive hardware limit switch
Source for negative hardware limit switch
•
The limit switch evaluation responds to a positive edge.
If the limit switch connections for the digital inputs used are to be fail-safe,
change 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.
The error message "HWLimitPos" or "HWLimitNeg" is generated, irrespective of whether the
axis is currently moving and in which direction the axis is currently moving.
Acknowledge the error in order to move the axis.
Behaviour when retracting the limit switches:
If a limit switch is triggered and the error message is acknowledged, only travel requests in the
opposite direction (retracting direction) are possible. Travel requests in the direction of the
limit switch are aborted in the event of an error.
Technology application (TA) basic settings
40x5047:001
X3
DO1
GO
DI1
DI3
AI1-
Master Value Source
Source Master Values
(0x5020:014) OR Status Signals Virtual Master (0x5045:110), Bit 31 (External Master Values Inactive)
Source Master Values
(0x5020:014) =
Virtual Master
Systembus
Master Values
Selected Set Velocity VM
Source Master Values
(0x5020:014) =
Systembus
Set Velocity
VM Startposition
VM Zielposition
40x5020:004
40x5020:005
40x500A:104
24O
GI
DI1
DI3
AI1+
Source Master Values (0x5020:014) = Virtual Master
OR Error code (0x603F:000) = 0x7304 (Feedback fault slot B)
(0x5047:001)
Virtual Master
Profile Generator
v
v
max
VM Sync Velocity
∆ p
VM Sync Slave Direction
t
(0x5046:003)
VM Acc
(0x5046:001) VM Dec (0x5046:004)
(0x5046:005)
(0x5046:002) VM Jerk
Motion settings
Limitations
OR AnalogIn 1
Selected Master Velocity
(0x5042:017)
(0x5046:020)
(0x5046:030)
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