CHAPTER 5: PROGRAMMING MODES
2 KHZ INVERTER WEDLING POWER SUPPLY
5-6
990-057
Output Relays
The Power Supply has two solid state relays which can be used to provide status or timing signals to a
user Programmable Logic Control (PLC). For a full description on how to connect Relay K1 and Relay
K2, refer to
Chapter 4, Control Signals, Output Relays.
1
Relay
K1
and Relay
K2
can only be programmed in the Alphanumeric
PROGRAM
State.
2
Use the vertical cursor keys
to select the weld schedule that you want to modify. From the
Weld Graph
RUN
State or Basic Weld Monitor
RUN
State, press
PROG
multiple times to enter
the Alphanumeric
PROGRAM
State. If you are already in the Alphanumeric
PROGRAM
State,
press
PROG
once.
3
Press until the
RELAY 1
and
RELAY 2
legends are displayed. Both relays can
be activated in the
SQUEEZE, WELD
, and
HOLD
periods. Press
CHNG
to select
ON
.
In this example,
RELAY
1 will turn on
during the
WELD
period.
4
There are four more
RELAY 1
options
listed under the
SQZ
period column.
Press
CHNG
to select the
RUN STATE
option. In this example, notice that the
RELAY 1
options for the
WELD
and
HOLD
periods disappear. Selecting the
RUN
STATE
option will cause
RELAY 1
to
always be on when the Power Supply is
not making a weld.
5
Press
CHNG
until the
ALARM (NO)
option
appears. An
ALARM
condition causes
RELAY 1
to switch from the normally
open
(NO)
state to the closed state.
RELAY 1
automatically opens when the
alarm condition is cleared by pressing
RUN
or when the next welding sequence
begins.
6
Press
CHNG
until the
ALARM (NC)
option
appears. An alarm condition causes
RELAY 1
to switch. An alarm condition
causes
RELAY 1
to switch from the normally closed state
(NC)
to the normally open state.
RELAY
1
automatically closes when the alarm condition is cleared by pressing
RUN
or when the next
welding sequence begins.
