CHAPTER 3: USING PROGRAMMING FUNCTIONS
UNIFLOW
®
4 PULSED HEAT CONTROL
990-908 3-25
5. OUT OF LIMITS: Relay is OPEN/CLOSED for any out of limits condition. OUT OF LIMITS are
temperature conditions that are outside any active PEAK, AVERAGE, and ENVELOPE Limits.
NOTES: If an Out of Limits is triggered, this relay state will continue to remain active until you
perform one of the following actions:
a) You apply a signal at J4A-7 on the Control back panel
b) You press the Up Arrow Key on the front panel.
c) You initiate another reflow process.
A new reflow process can be triggered when the Out of Limits relay is active even though the Out of
Limits
relay has not been reset.
6. CLEAN THERMODE: Relay is OPEN/CLOSED when clean thermode counter expires. Auto reset
when the counter is edited or reset by pushing the zero key at the Graph or Data screen, or reset by
applying a signal at the digital input J4A-7.
7. REPLACE THERMODE: Relay is OPEN/CLOSED when replace thermode counter expires. Auto
reset when the counter is edited or reset by pushing the zero key at the Graph or Data screen, or
reset by applying a signal at the digital input J4A-7.
8. IDLE HEAT: Relay is OPEN/CLOSED if idle temperature is ON.
See Appendix B, Electrical and Data Connections for the relay description that includes the timing
diagram showing the sequence of the status options.
COMMUNICATIONS
The SETUP key returns you to the SETUP MENU screen. The 2 key on the SETUP MENU brings up the
COMMUNICATION screen.
COMMUNICATION ROLE
Press the 1 key to toggle between
MASTER and SLAVE to set the role of the
RS485 communication interface.
When
MASTER is selected, the Control
will automatically send data out of the
RS232 or RS485 serial port to the host
computer after each heating cycle.
< COMMUNICATION >
1. COMMUNICATION ROLE : MASTER
2. BAUD RATE : 38.4K
3. RS232/485 SELECT : RS232
4. RS485 ID NUMBER : 01
Number Select, Page, Graph / Data
When MASTER is selected, the Control will automatically send data out of the RS232 or RS485 serial
port to the host computer after each heating cycle.
When
SLAVE is selected, the Control will send data to the host computer only when requested by the
host computer. The Default value is SLAVE.
NOTE: Refer to Appendix D, Communication Codes for additional information on the serial
communication protocol and commands.
RS232/485 SELECT
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