Miller Dynasty 400 Owner's Manual page 36

11 Output
12 Output
13 Output
14 Output
15 Input
16 Input
17 Input
18 Output
19 Input
20 Input
23 Output
24 Output
All other pins not used.
C. User Controlled Automation Mode (Pin 25 Connected To Pin 8) Automation 2
This mode includes all the basic functions of the automation board, plus gives the welder the option to control the pulse or AC waveforms, or to
minimize the noise that can be injected into the welder from the control and cables. These functions include Start/Stop, Valid Arc Indication, Gas
Control, High Frequency Arc Start Disable, and Emergency weld stop.
A. User Controlled Automation Mode (Pin 25 Connected To Pin 8) Automation 2
8
14 13
19
20
25
28
Signal
2-5. Remote Memory Select Inputs (For 28-Pin Receptacle If Present)
Pin
Direction
1 Input
3
8
14
20
2 Input
25
28
OM-275857 Page 26
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Complete Parts List is available at www.MillerWelds.com
Amperage Control
Reference
Welders Chassis
Arc Length Control
Lockout
Arc Length Control Lock-
out Reference
Memory Select
Memory Select
Amperage Control
+10 Volts DC
High Frequency Arc Start
Disable
Welder Control Select
Final Slope Sequence
Indication
Final Slope Sequence Indi-
cation Reference
A complete Parts List is available at www.MillerWelds.com
2
3 1
7 6 5
4
9
12 11
10
17 15
18 16
24 23
22 21
27
26
Description
Start/Stop
1
4
Emergency Weld Stop
9
15
21
26
For pins 5, 6, 7, 17 and 18 (Pin D of 14 pin).
Earth ground. Connected only if common potentials are needed between user
equipment and the welder.
Paired with Pin 14. Used to send signal to an automatic voltage control to
ignore the voltage during certain situations. Pin is closed to pin 14 when the
weld cycle is in Initial Amperage, Initial Slope, Final Slope, Final Amperage,
and Pulsed Background time. Electrical specifications: Open collector transis-
tor maximum values 27volts DC peak @ 75mA. See Section 5-5 .
Paired with Pin 13. Connect to user's external voltage supply common. See
Section 5-5 .
Used to select between memory numbers. Used in conjunction with pin 10
and 16. See Sections 5-7 and 10.
Used to select between memory numbers. Used in conjunction with pin 10
and 15. See Sections 5-7 and 10.
0 to +10 volts DC with respect to pin 11. The 10 volts represents the amper-
age value set on machines meter (Pin E of 14 pin).
With respect to pin 11 for use with an external potentiometer to vary the signal
into pin 17 (Pin C of 14 pin).
Disables the arc starter from being activated when connected to pin 8.
Connect to pin 8 to activate this mode.
Paired with Pin 24. Pin is closed to pin 24 when in Final Slope. Electrical
specifications: Open collector transistor maximum values 27 volts DC peak @
75mA. See Section 5-5 .
Paired with pin 23. Connect to user's external voltage supply common. See
Section 5-5 .
Pin Information For 28–Pin Receptacle RC28
Maintained connection to pin 8 starts the weld cycle. Opening connection
stops weld cycle. For momentary closure operation, set unit to 2T. A momen-
tary closure greater than 100 ms, but less than 3/4 of a second starts and
stops weld output.
Used to remotely stop the weld outside the normal welding cycle (i.e. light cur-
tains or external E-Stop). Connection to pin 8 must be maintained at all times.
If the connection is broken, output stops, Postflow begins, and will be dis-
played on the meters.
804746-B / 21816-A