6
6.2
Positioning mode (P0700 = 3, from SW 2.1)
6-371
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SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
For ”SIMODRIVE 611 universal”, the following limit switch monitoring
functions can be used:
Hardware limit switch (HW limit switch)
Software limit switches (SW limit switches)
The limit switch monitoring functions can be used to limit the operating
range or to protect the machine.
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ÏÏ
ÏÏ
ÏÏ
ÏÏ
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Mechanical
end of
traversing
range
Mechanical
end of
traversing
range
Minus
hardware
limit switch
(NC contact)
Plus
hardware
limit switch
(NC contact)
Minus
software
limit switch
P0315
Plus
software
limit switch
P0316
Input terminal with
the ”minus hardware
limit switch” function
Input terminal with
the ”plus hardware
limit switch” function
Output
signal
”minus
software
limit switch
actuated”
Output
signal
”plus
software
limit switch
actuated”
P0314
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ÏÏ
ÏÏ
ÏÏ
ÏÏ
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Fig. 6-13 Overview of the limit switch monitoring functions
There is a hardware limit switch for every axis and every approach di-
rection.
The HW limit switches must be connected to an input terminal with the
following function numbers:
”Plus hardware limit switch” function ––> function number 81
”Minus hardware limit switch” function ––> function number 82
––> Refer to Chapter 6.4.2
When traversing to a hardware limit switch, the associated input signal
is set and the following response is automatically initiated:
The axis is braked with the deceleration level set in P0104 (maxi-
mum deceleration) and therefore comes to a standstill after the limit
switch. The drive remains in the closed–loop controlled mode.
One of the following faults is signaled:
– Fault 140
Minus hardware limit switch
– Fault 141
Plus hardware limit switch
The jogging key is inhibited in the direction of motion
The traversing block is exited
Limit switch
monitoring
functions
Hardware
limit switch
(HW limit switch)
Traverse to a
hardware limit
switch?
6 Description of the Functions
01.99
! not 611ue !