100-214-251 REV. 05 53
Rear Panel).
4.5.5 User I/O, Alarm Connector
The Alarm Connector provides status outputs and an EXTERNAL RESET switch connection
to customer supplied controls. Connection is via a J971 cable from the 25 pin connector on
the welder’s rear panel. The cable is available in 8 ft/2.5 m, 15 ft/4.5 m, or 25 ft/7.5 m
lengths.
The EXTERNAL RESET switch operates in exactly the same manner as the front panel
RESET switch, Applying +24V DC to the EXTERNAL RESET input (pin 25) for a minimum of
20 ms will reset the welder.
The status outputs available from the interface are SOLENOID OUTPUT (pin 13), GENERAL
ALARM (pin 18), READY (signal - pin 19, relay - pins 9 and 10), and WELD ON (pin 20).
The SOLENOID OUTPUT provides a negative logic output when referenced to the +24V DC
source (pins 5 and 6). GENERAL ALARM, READY AND WELD ON signals provide a negative
logic output when reference to 24V RTN (pins 21, 22, and 23).
These signals can be interfaced with a customer supplied device to monitor system status
and trigger some action when the signals become active or inactive.
Pins 5 and 6 provide a +24V DC source (100mA maximum). Pins 21, 22, and 23 provide
+24V DC return (common). The remaining pins are unused. Refer to Figure 4.9 Input/
Output Signals, IW/IW+.
WARNING General Warning
If you wish to use a J911 cable, you must first have signed a Branson
Product Liability Agreement.
100-214-251 IWoper.book Page 53 Friday, June 16, 2017 4:12 PM
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