Entron EN1000 series

ENTRON Controls, LLC. • 700120S • Page 83
Step 3 – SQUEEZE & WELD
The third schedule (02), executes a SQUEEZE, WELD and HOLD using Valve 3. Valves 1 and
2 are still active (position and clamp).This sequence adds Valve 3, which closes the weld gun.
Variations in the above sequence can be accomplished using other CYCLE MODES and VALVE
MODES. Since VALVE codes are in binary form, valve assignments are clarified in Table 6-1.
Table 6-1. VALVE codes
6.2.6 WAIT-HERE – CYCLE MODE=
0505
0505
05
Use WAIT-HERE function (CYCLE MODE=
0505
0505
05) with full understanding
of machine and control operation. Enabling of
b.E.b.E.
b.E.b.E.
b.E.=
0505
0505
05 has been added to help
ensure this operation is really required.
This CYCLE MODE has been implemented to satisfy additional requirements for more
complicated machine sequencing.
The control will allow programming of CYCLE MODE
0505
0505
05 only if EXTENDED FUNCTION
parameter BEAT mode is already programmed to
b.E.b.E.
b.E.b.E.
b.E.=
0505
0505
05.
If a schedule is programmed with CYCLE MODE
0505
0505
05 and, if initiated by FS3 initiation, the
control will execute the schedule sequence, wait either in SQUEEZE or WELD/COOL or HOLD
part of the sequence, depending on programmed data in the given schedule, and maintain the
schedule valves active indefinitely. At this point, the WAIT-HERE part of the sequence can be
stopped by activating Emergency Stop or Temperature Limit Switch input, or it can be continued
with FS7 or FS11 initiation. When the FS7 or FS11 initiation input closes, the control will
continue by selecting schedule 10 or 20, respectively, and executing it as programmed whether
it is a SPOT or REPEAT or CHAINED sequence.
6.2.5 CONDITIONAL SUCCESSIVE – CYCLE MODE=
0404
0404
04 (cont.)
NOTICE


 CAUTION



SCHEDULE SQUEEZE
WELD/
HEAT
PERCENT
CURRENT
HOLD OFF IMPULSES COOL
VALVE
MODE
CYCLE
MODE
SLOPE
MODE
SLOPE
COUNT
01 40 00 00 20 00 01 00 03 02 00 00
SCHEDULE SQUEEZE
WELD/
HEAT
PERCENT
CURRENT
HOLD OFF IMPULSES COOL
VALVE
MODE
CYCLE
MODE
SLOPE
MODE
SLOPE
COUNT
02 40 10 70 05 00 01 00 07 00 00 00
VALVE3 VALVE2 VALVE1
00 OFF OFF OFF All valves off
01 OFF OFF ON Valve 1 active
02 OFF ON OFF Valve 2 active
03 OFF ON ON Valves 1 & 2 active
04 ON OFF OFF Valve 3 active
05 ON OFF ON Valves 1 & 3 active
06 ON ON OFF Valves 2 & 3 active
07 ON ON ON Valves 1, 2 & 3 active
VALVE Indicator LEDs
DescriptionVALVE code