Hardware Manual for the DMC5400 Motion Controller
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Table 4-7: External resistor for open collector output (single-ended encoder)
4.6 Alarm Signal ALM
The alarm signal ALM is used to indicate the alarm status from the servo driver. When the ALM signal is active,
the DMC5400 will stop the output signals (PUL/DIR). The following table lists the relative signal name, pin
number, and the axis number. When the function is disabled, these ports can be use as general purpose inputs.
Table 4-8: ALM pins
X1 Pin
Signal
Description (Axis)
X2 Pin
Signal
Description (Axis)
39
ALM0
Alarm signal, Axis0
30
ALM3
Alarm signal, Axis3
25
ALM1
Alarm signal, Axis1
59
ALM2
Alarm signal, Axis2
The input circuit of alarm signal is shown in the following diagram. The external switches featuring a contact
capacity of +24V, 6mA minimum. An internal filter circuit is used to filter out the high frequency spike, which
may cause wrong operation. See
“
Software Manual for the DMC5400 Motion Controller
”
for more detail
operation of the ALM.
Figure 4.7: ALM signal interface circuit
4.7 In-Position Signal INP
The in-position signal INP from the servo motor driver indicates the deviation error is zero. That is the servo
position error is zero. The following table lists the relative signal name, pin number, and the axis number. When
the function is disabled, these ports can be use as general purpose inputs.
Table 4-9: INP pins
X1 Pin
Signal
Description (Axis)
X2 Pin
Signal
Description (Axis)
40
INP0
In-position signal, Axis0
31
INP3
In-position signal, Axis3
26
INP1
In-position signal, Axis1
60
INP2
In-position signal, Axis2
The in-position signals are usually from servomotor drivers. The external switches featuring a contact capacity of
+24V, 6mA minimum. An internal filter circuit is used to filter out the high frequency spike, which may cause
wrong operation. See
“
Software Manual for the DMC5400 Motion Controller
”
for more detail operation of the
VDD
External Resistor R
+5V
0
Ω
+12V
1.8K
Ω
+24V
4.3K
Ω
