Dry Contacts Using An External Power Supply For Relay Operation - Miller Electric Spectrum 1251 Owner's Manual

6-6. Dry Contacts Using An External Power Supply For Relay Operation

3
Remote Control Cable
.
+24 volts dc will activate relay coil after unit is triggered and
the cutting arc is initiated.
Tools Needed:
5/16 in
.
A complete Parts List is available at www.MillerWelds.com
2
1
White
Red
Green
Black
Y Turn off and
input power.
Control board PC1 can provide dry
contacts from receptacle RMT1 to
operate a customer-supplied relay
using an external power supply for
the Okay To Move signal.
1 Control Board PC1
2 Receptacle RMT1
3 Receptacle RC61
Unit is shipped from factory with
plug connected to receptacle
RMT1.
Be sure that remote control cable
plug is connected to RC61 on rear
of unit.
If voltage sensing is required, see
Section 6-8.
Install wrapper on unit.
Required Items:
Customer-supplied +24 volts dc
power supply.
24 volts dc relay coil with resistance
greater than 240 ohms.
Suppression diode (1A, 100V) such
as type IN4002 through IN4004
across relay coil.
Remote
Start
+
+24 VDC
Power
Supply
−
Relay
Relay
Contacts
disconnect
Okay To
Move
804 041-A
OM-201 872 Page 27