APPENDIX B: ELECTRICAL AND DATA CONNECTIONS
UNIFLOW
®
2 PULSED THERMODE CONTROL
990-228
B-15
Automation Control Inputs Connections
Input Signal Rating:
0 or 24 VDC, 2 mA max
Remote Profile Inputs:
All Profiles must be entered and saved in the Control memory
locally (from the Front Panel). Once they are saved, they can be
recalled prior to initiating the Reflow process by placing a binary
value on the four
SCHED
lines. This may be done with an external
PLC (Programmed Logic Controller) or host computer. When all of
the
SCHED
Inputs are inactive (
0000
), the Profile Number (
1-15
) can
be selected from the Front Panel. When any of the
SCHED
Inputs
are active the Profile Number Keys on the Front Panel become
disabled and the Profile Number is selected through the Profile
Remote Inputs,
SCHED 0
,
SCHED 1
,
SCHED 2
and
SCHED 3
. The
Profile Number Zero (
0
) is not a displayable selection.
Remote Profile Inputs Binary Profile
Profile
Number
SCHED 0
Pin 7
SCHED 1
Pin 8
SCHED 2
Pin 9
SCHED 3
Pin 10
0 0 0 0 0
1 1 0 0 0
2 0 1 0 0
3 1 1 0 0
4 0 0 1 0
5-14
Binary progression from 5 to 14
15
1 1 1 1
You may use mechanical switches, opto couplers, or a PLC for remote profile selection.
Remote Profile Selection with
Switches or Opto-Couplers
Remote Profile Selection with PLC
