APPENDIX B: ELECTRICAL AND DATA CONNECTIONS
UNIFLOW
®
4 PULSED HEAT CONTROL
990-908 B-13
Alarm/Status Relays Connections For Relays 1 5
NOTE: See Connector J6B for Relays 6 and 7. The following relay rating applies to all Relays 1
through 7.
ATTENTION: The previous version Uniflow 4 with part numbers beginning with 1-298-01 had a
Chassis Ground connection on Pin J6A-10. This Chassis Ground connection has been moved to J4A-5
for this new version of Uniflow 4 with part numbers 1-298-02.
Relay Rating: 30 VAC or 30 VDC at 0.5 Amps
User Programmable Options for Relay States:
System Ready On/Off when Uniflow 4 Control is ready for reflow operation
Heat On On/Off during baseheat, rise1, preheat,rise2, reflow and postheat process cycle
Head Is Up On/Off when head is retracted
Alarm On/Off for any alarm condition
Out of Limit On/Off for any out of limit condition
Clean Thermode On/Off when clean thermode counter expires
Replace Thermode On/Off when replace thermode counter expires
Idle On/Off if idle temperature On
Baseheat On/Off during baseheat process cycle
Rise1 On/Off when 50% of the programmed Rise1 time has elapsed. At the
end of the programmed Rise1 time, the relay will switch back to Off/On
Preheat On On/Off during preheat process cycle
Rise2 On/Off when 50% of the programmed Rise2 time has elapsed. At the end
of the programmed Rise2 time, the relay will switch back to Off/On
Reflow On/Off from start of heating to COOL1 if no Postheat cycle otherwise COOL2
Cool1 On/Off when the COOL1 temperature is reached
End of Reflow ON/OFF when COOL1 is reached if no Postheat cycle, otherwise Cool2
Cycle Pwr Alarm On/Off for "cycle power" alarm conditions
Not Active: The relay is not active.
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