Entron EN1000 series

ENTRON Controls, LLC. • 700120S • Page 107
9.1.3 QUENCH-TEMPER WITH CHAINED MODE
Schedules 03 and 04 are CHAINED together to illustrate QUENCH-TEMPER operation.
Schedule 03 performs the SQUEEZE, WELD and QUENCH functions (using HOLD for
QUENCH), and schedule 04 performs the TEMPER and HOLD functions (using WELD for
TEMPER). Valve 3 output is used. The WELD light gives a visual indication of the relative
amplitude and duration of CURRENT during WELD and TEMPER times.
9.1.4 UPSLOPE AND DOWNSLOPE WITH CHAINED MODE
Schedules 05, 06, 07 and 08 are CHAINED together to illustrate UPSLOPE/DOWNSLOPE
operation. Schedule 05 performs SQUEEZE function and establishes PERCENT CURRENT
at which UPSLOPE will begin (bottom current). Schedule 06 performs WELD function and
sets UPSLOPE time. Schedule 07 sets DOWNSLOPE time and PERCENT CURRENT it starts
from. Schedule 08 establishes PERCENT CURRENT at which DOWNSLOPE will end, and
performs HOLD function. The number in the SCHEDULE display will change as the sequence
progresses from one schedule to the next. Valve 1 output is used for this example.
Figure 9-3. QUENCH-TEMPER with CHAINED mode
Figure 9-4. UPSLOPE and DOWNSLOPE with CHAINED mode
SCHEDULE SQUEEZE
WELD/
HEAT
PERCENT
CURRENT
HOLD OFF IMPULSES COOL
VALVE
MODE
CYCLE
MODE
SLOPE
MODE
SLOPE
COUNT
03 40 35 60 35 10 01 00 04 02 00 00
04 00 30 40 20 10 01 00 04 00 00 00
SCHEDULE SQUEEZE
WELD/
HEAT
PERCENT
CURRENT
HOLD OFF IMPULSES COOL
VALVE
MODE
CYCLE
MODE
SLOPE
MODE
SLOPE
COUNT
05 40 00 10 00 00 01 00 01 02 00 00
06 00 20 60 00 00 01 00 01 02 01 20
07 00 00 60 00 00 01 00 01 02 02 22
08 00 00 05 20 10 01 00 01 00 00 00