2.3.1. Option Card X57
Terminal
Designation
Description
1
Touch probe switch
input
Interrupt triggered on the rising edge. If this signal
goes high when no touch probe target position is
currently locked a new touch probe target position
is calculated and locked in memory.
2
Positive HW limit
switch input
Interrupt triggered on the falling edge. Triggers a
HW limit error and the drive is stopped according to
P1906.
3
Negative HW limit
switch input
Interrupt triggered on the falling edge. Triggers a
HW limit error and the drive is stopped according to
P1906.
4
HOME reference
switch input
Active high. Marks the HOME position in the appli-
cation.
5
Go to the refer-
enced target posi-
tion
Active high. Upon activation the drive goes to the
specified target position. A low signal interrupts any
positioning sequence. Not used in fieldbus mode.
6
Reset home flag
Active high. This input clears the home flag. This al-
lows the user to perform a second homing se-
quence. Not used in fieldbus mode.
7
Reset touch probe
position
Active high. This input clears the touch probe posi-
tion flag. The reset is necessary to carry out a touch
probe positioning command to a new target posi-
tion. Not used in fieldbus mode.
8
Quick stop
Active low. This input activates the Quick Stop func-
tion. The drive is stopped according to the setting of
P1906. After that the electromechanical brake is al-
ways activated when the “Quick stop” input is acti-
vated regardless of the P1906 setting.
9
Go to HOME posi-
tion
While this input is high the drive executes the hom-
ing sequence. While this input is high no position or
jog operations are carried out. Any homing se-
quence is interrupted by a low state on this input.
Not used in fieldbus mode.
10
LATCH new refer-
ence position index
number
Active on the rising edge (must be “0” min. 1 ms. to
guarantee edge detection): Latches reference posi-
tion index number specified on terminal 18, 19, 29,
32, 33 into memory. Digital output 4 – 8 is changed
to mirror the new reference index specified when
using digital input control. Not used in fieldbus
mode.
MCO351 Positioning Controller
2. Introduction
MG.33.R1.02 - VLT
®
is a registered Danfoss trademark
15
2