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Open Collector Wiring <br />NPN Style Wiring <br />PL(5K <br />ll-Up Resistor <br />10KC1, 1/4 W) <br />PWR+PWR-iG,d <br />V to +24V <br />Loop+ Power <br />Loop- Supply <br />OC -d <br />ut <br />PLC <br />PNP Style Wiring <br />PWR+ <br />PWR- <br />Loop � <br />Loop - <br />CC - <br />Pull -Down Resistor <br />(5K - 10KC), 1/4 W) <br />With NORMAL set to OPEN. <br />PWR + Alarm <br />PWR- 1Z —. <br />Loop + mV , <br />Loop - Pow"I <br />OC- OC , --LII'Idy, <br />If P' '' needs 0 logic input <br />when relay is not energized, <br />set NORMAL to CLOSED in <br />the RELAY menu when using <br />the Open Collector (R1) with <br />NPN style wiring. <br />i <br />• The 9900 Open Collector (R1) output provides high-speed switching capability. <br />Signal frequencies can reach 400 pulses per minute. <br />• The 9900 Open Collector (R1) output connection is dependent upon the type of <br />circuit being controlled by the output. <br />• Most Indicating instruments or control system inputs require a signal voltage of <br />1 0 to 5 V (TTL or CMOS logic levels) or 0 to 24 V, <br />1 Therefore, the 9900 Open Collector output circuits must be equipped with a pull-up or <br />j pull-down resistor (not supplied), and a quality regulated 5 to 24 V (depending on the <br />application) power supply (not supplied) is recommended to function properly. <br />14 9900 Transmitter Start -Up Guide <br />+GF+ <br />I <br />iRelay Module Wiring <br />t <br />The alarm is OFF during normal <br />N <br />operation, and will go ON when <br />} <br />g <br />"o <br />relay energizes according to <br />cc <br />9900 Relay settings, <br />I <br />i <br />I <br />I The valve is ON during normal <br />operation, and will go OFF when <br />g <br />1J <br />NC <br />relay energizes according to <br />Lu <br />c <br />9900 Relay settings. <br />I <br />r <br />AC or DC <br />power <br />Flow --*. _+ <br />lNO = normally open (closes when energized) <br />UNC = normally closed (opens when energized) <br />AC or DC <br />power <br />Valve <br />9900 Transmitter Start -Up Guide �is <br />