ENTRON Controls, LLC. • 700120S • Page 115
The jumper on TS3 on Terminal Strip/
Firing Board A/N 410319 must be
installed as JB to connect terminal 1 to
VL1, indicated by “JB” printed on the
board (see Figure 9-12).
Moving this jumper will bypass the
Valve Control Relay, which normally
prevents valve activation until a weld
sequence is initiated. Since this valve
may now be activated without
energizing the control relay, care MUST
be taken to insure safe operation.
PROGRAMMING MOMENTARY RETRACTION
1. Provide a constant closure of TS1-TLS1/AUX1 to TS1-GND.
2. Press SELECT push button repeatedly until FUNCTION indicator LED has advanced past
SLOPE COUNT to enter data in EXTENDED FUNCTIONS (
EFEF
EFEF
EF).
3. Scroll through the EXTENDED FUNCTIONS until
PP
PP
P
.O..O.
.O..O.
.O. appears in SCHEDULE display.
4. Press PROGRAM/OPERATE push button to place the control in PROGRAM mode.
5. Use the DATA push buttons to display
0808
0808
08 in DATA display.
6. Press ENTER push button to store the data.
7. Open the retraction switch held closed in Step 1.
8. Press PROGRAM/OPERATE push button to put the control in OPERATE mode.
9.5.2 MAINTAINED CLOSURE –
b.S.b.S.
b.S.b.S.
b.S.=
0909
0909
09
(THREE STAGE FOOT-SWITCH RETRACTION ADDITION)
EN1000/EN1001 Series Controls incorporating PROM firmware version 619016-002R or later
will have the Maintained Closure Retraction feature added.
Once
b.S.b.S.
b.S.b.S.
b.S. is set to
0909
0909
09, the control will enter the MAINTAINED CLOSURE RETRACTION
mode. This RETRACTION implementation is different from
PP
PP
P
.O..O.
.O..O.
.O.=
0707
0707
07 or
PP
PP
P
.O..O.
.O..O.
.O.=
0808
0808
08 in that it uses
one foot switch that has a maintained/latched contact that the control uses to turn on the retraction
output Valve 3. The software has a power-on interlock of the Valve 3 output to block Valve 3
from turning on with power on. This feature, simple as its operation may be, will help users
implement this type of retraction without putting high voltage on one pole and/or in the same
conduit as the low voltage foot switch wiring.
9.5.1 MOMENTARY CLOSURE –
PP
PP
P
.O..O.
.O..O.
.O.=
0808
0808
08 (cont.)
WARNING
Figure 9-12. Momentary Retraction
connections
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