Contents. Volume 7 Motor Controls, Logic and Connectivity CA E April V7-T40-187
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1 Control Relays and Timers Alternating Relays.9 D85 Series Alternating Relays Contents Description D85 Series Alternating Relays Product Selection Accessories Technical Data and Specifications Wiring Diagrams Dimensions Page V7-T-88 V7-T-88 V7-T-89 V7-T-89 V7-T-9 Product Description Alternating relays are used in applications where the optimization of load usage is required by equalizing the run time of two loads. They are also used where additional capacity is required in case of excess load requirements. This alternating action is initiated by a control switch such as a float switch, manual switch, timing relay, pressure switch or other isolated contact. Each time the initiating switch is opened, the output relay contacts will change state, thus alternating the two loads. Two LED indicators show the status of the output relay. The D85 and D85 Series Relays are used with one control switch and are available in either SPDT or DPDT output configurations with or without a selector switch to lock in one sequence. The D85X Series Relays are available in DPDT cross-wired output configurations for use with one or two control switches (LEAD and LAG). The D853 Series is designed for use with three-switch applications (LEAD, LAG and STOP). The D853 Series combines a standard DPDT Cross-Wired alternating relay, contactor auxiliary contacts, and a control relay into one compact and economical product. This saves space and labor, while reducing the number of components needed. The D853 Series uses Sequence On Simultaneous Off (S.O.S.O.) operation, where the two loads are energized sequentially, but remain on together until the STOP switch is opened. This device also protects against failure of the STOP and LEAD switches. If both switches fail, the two pump motors will be energized simultaneously when the LAG switch is closed. Each of the D85 Series alternating relays is available with an optional threeposition selector switch, which allows the unit to alternate the two loads as normal, or lock the relay to one load or the other. By locking the alternating relay to one load, the other load can be removed for service without rewiring the first load for continuous operation. The selector switch has a low profile to prevent any accidental actuation. Features For duplex loads Works with one-, two-, or three-switch applications Compact plug-in design using industry standard sockets 0A SPDT or DPDT output configurations Optional low profile selector switch to lock in one sequence Two LEDs indicate relay status D853 Series replaces separate components in duplex panel saving space and reducing labor Standards and Certifications CE cruus UL listed RoHS compliant Note When used with appropriate Eaton socket. Volume 7 Motor Controls, Logic and Connectivity CA E April 0 V7-T-87 For Immediate Delivery or Tech Support call KMParts.com at (866)
2 .9 Control Relays and Timers Alternating Relays Product Selection Accessories D85 Series Alternating Relays Output Contacts D85 Series Alternating Relays Note Control Voltage Contact Eaton for relays for 3-switch applications (Lead-Lag-Stop). Socket Catalog Number SPDT Vac 8-pin D85NR SPDT 4 Vac 8-pin D85NT SPDT 0 Vac 8-pin D85NA SPDT Vac 8-pin D85NB SPDT w/selector switch Vac 8-pin D85LR SPDT w/selector switch 4 Vac 8-pin D85LT SPDT w/selector switch 0 Vac 8-pin D85LA SPDT w/selector switch Vac 8-pin D85LB DPDT Vac -pin D85NR DPDT 4 Vac -pin D85NT DPDT 0 Vac -pin D85NA DPDT Vac -pin D85NB DPDT w/selector switch Vac -pin D85LR DPDT w/selector switch 4 Vac -pin D85LT DPDT w/selector switch 0 Vac -pin D85LA DPDT w/selector switch Vac -pin D85LB DPDT cross-wired Vac 8-pin D85XNR DPDT cross-wired 4 Vac 8-pin D85XNT DPDT cross-wired 0 Vac 8-pin D85XNA DPDT cross-wired Vac 8-pin D85XNB DPDT cross-wired w/selector switch Vac 8-pin D85XLR DPDT cross-wired w/selector switch 4 Vac 8-pin D85XLT DPDT cross-wired w/selector switch 0 Vac 8-pin D85XLA DPDT cross-wired w/selector switch Vac 8-pin D85XLB Description Standard Pack Catalog Number 8-pin socket 0 D3PA -pin socket 0 D3PA3-A Hold-down spring 0 D65CHDS V7-T-88 Volume 7 Motor Controls, Logic and Connectivity CA E April 0 For Immediate Delivery or Tech Support call KMParts.com at (866)
3 Control Relays and Timers Alternating Relays.9 Technical Data and Specifications D85 Series Alternating Relays Description Voltage tolerance Load (burden) Output contacts Mechanical life Electrical life Temperature Transient protection Indicator LEDs Optional selector switch settings Wiring Diagrams D85 Series Relays, SPDT Input Voltage Load A: Pin Load B: Pin 8 Control D85 Series Relays, DPDT Typical Installations for SPDT and DPDT Alternating Relays, Standard Installation Control In the OFF state (standard installation), the control switch is open, the alternating relay is in the LOAD A position, and both loads ( and ) are off. When the control switch closes, it energizes the first load (). The red LED marked LOAD A glows. As long as the control switch remains closed, remains energized. 5 4 SPDT Specification +0%/-5% of control voltage at 50/60 Hz Less than 3 VA 0A resistive at Vac / 30 Vdc, / hp at 0/ Vac (NO), /3 hp at 0/ Vac (NC) 0,000,000 operations 00,000 operations 0 to 50 F ( 8 to 65 C) 0,000 volts for 0 microseconds LEDs marked LOAD A and LOAD B ALTERNATE, LOCK LOAD A, LOCK LOAD B 8 3 Input Voltage Control Load A: Pins 3 or Load B: Pins or 9 When the control switch opens, the first load () is turned off and the alternating relay toggles to the LOAD B position. When the control switch closes again, it energizes the second load (). The red LED marked LOAD B glows. D85X Series Relays, DPDT Cross-Wired Lead Lag Input Voltage Load B Load A D853 Series Relays, Three- Applications Typical Installations for SPDT and DPDT Alternating Relays, Anti-Bounce Installation Off Control When the control switch opens, the second load () is turned off, the alternating relay toggles back to the LOAD A position, and the process can be repeated again. On relays with DPDT contacts, two pilot lights can be used for remote indication of LOAD A or LOAD B status. 5 4 SPDT Lead Lag 8 3 Input Voltage Stop Load B Load A To eliminate any bounce condition of the control switch, the addition of a second switch (OFF) along with two auxiliary contacts is recommended as shown in the Anti-Bounce Installation. Volume 7 Motor Controls, Logic and Connectivity CA E April 0 V7-T-89 For Immediate Delivery or Tech Support call KMParts.com at (866)
4 .9 Control Relays and Timers Alternating Relays Typical Installations for DPDT Cross-Wired Alternating Relays, Standard Installation In the OFF state, both the LEAD control switch and the LAG control switch are open, the alternating relay is in the LOAD A position, and both loads are off. When the LEAD control switch closes, it energizes the first load (). The red LED marked LOAD A glows. As long as the LEAD control switch remains closed, remains energized. If the LAG control switch closes, it energizes the second load (). When the LAG control switch opens, the second load () is turned off. When the LEAD control switch opens, the first load () is turned off and the alternating relay toggles to the LOAD B position. Typical Installations for DPDT Cross-Wired Relays for Three- Applications L3 L3 Lag Lead 3 Cross-Wired In the OFF state, all three switches are open, the alternating relay is in the LOAD A position, and both loads are off. No action happens with the alternating relay or either load when the STOP switch closes. When the LEAD switch closes, Load # () turns on. When the LAG switch closes, Load # () turns on. Both loads remain on as long as all three switches are closed. When the LAG switch opens, Load # () remains on because the STOP switch is still closed. When the LEAD switch opens, Load # () remains on because the STOP switch is still closed. When the STOP switch opens, both Load # () and Load # () are turned off simultaneously Motor Motor Typical Installations for DPDT Cross-Wired Alternating Relays, Anti-Bounce Installation Off Lag Lead 3 Cross-Wired When the LEAD control switch closes, it turns on the second load (). The red LED marked LOAD B glows. If the LAG control switch closes, it will energize the first load (). When the LAG control switch opens, the first load () is turned off. When the LEAD control switch opens, the second load () is turned off, the alternating relay toggles back to the LOAD A position, and the process can be repeated again. To eliminate any bounce condition of the control switch, the addition of a second switch (OFF) along with two auxiliary contacts is recommended as shown in the Anti-Bounce Installation. Lag Lead Stop The alternating relay toggles to the LOAD B position. The entire cycle is then repeated, but with Load # () energized first followed by Load # (). This type of operation is known as Sequence On Simultaneously Off (S.O.S.O.) the two loads are energized sequentially, but remain on together until the STOP switch is opened. If both the STOP switch and LEAD switch fail to close and turn on the first load, both loads will be turned on simultaneously when the LAG switch is closed V7-T-90 Volume 7 Motor Controls, Logic and Connectivity CA E April 0 For Immediate Delivery or Tech Support call KMParts.com at (866)
5 Control Relays and Timers Alternating Relays.9 Dimensions Approximate Dimensions in Inches (mm) D85 Series Alternating Relays.4 (60).7 (43).9 (74) 3. (79) Volume 7 Motor Controls, Logic and Connectivity CA E April 0 V7-T-9 For Immediate Delivery or Tech Support call KMParts.com at (866)
6 Index A Accessories, - accidental, action,, 4 actuation, addition, 3-4 additional, again, 3-4 against, all, 4 allows, along, 3-4 also, ALTERNATE, 3 alternate, Alternating, -5 alternating,, 3-4 AM, -5 an, and, -5 Anti, 3-4 any,, 3-4 Applications, 3-4 applications, - appropriate, Approximate, 5 April, -5 are,, 3-4 As, 3-4 as,, 3-4 at, -5 auxiliary,, 3-4 available, B back, 3-4 be,, 3-4 because, 4 book, -5 Both, 4 both,, 3-4 Bounce, 3-4 bounce, 3-4 burden, 3 but,, 4 By, by,, 4 C CA, -5 call, -5 can,, 3-4 capacity, case, Catalog, CEfail, Certifications, change, CHDS, close, 4 closed,, 3-4 closes, 3-4 com, -5
7 Index combines, Compact, compact, compliant, components, condition, 3-4 configurations, Connectivity, -5 Contact, contact, contactor, Contacts, contacts,, 3-4 Contents, continuous, Control, -5 control,, 3-4 Controls, -5 Cross,, 3-4 cross, - cruus, cycle, 4 D Data,, 3 Delivery, -5 Description, -3 design, designed, device, Diagrams,, 3 Dimensions,, 5 down, DPDT, -4 duplex, entire, 4 equalizing, excess, F fail, 4 failure, Features, first,, 3-4 float, followed, 4 For, -5 for, -4 G glows, 3-4 H happens, 4 has, Hold, hp, 3 Hz, 3 E Each, Eaton, - eaton, -5 economical, either,, 4 Electrical, 3 eliminate, 3-4 empera, 3 energize, 4 energized,, 3-4 energizes, 3-4 I If,, 4 Immediate, -5 In, 3-4 in,, 3-5 Inches, 5 indicate, indication, 3 Indicator, 3 indicators, industry, initiated,
8 Index initiating, Input, 3 Installation, 3-4 installation, 3 Installations, 3-4 into, is,, 3-4 isolated, it, 3-4 K KMParts, -5 known, 4 L LA, labor, LAG,, 4 Lag, -4 LASPDT, LB, LEAD,, 4 Lead, -4 LeadL, 4 LED,, 3-4 LEDs,, 3 Less, 3 life, 3 lights, 3 listed, LOAD, 3-4 Load, 3-4 load,, 3-4 loads,, 3-4 LOCK, 3 lock, locking, Logic, -5 long, 3-4 low, LR, LT, LTDPDT, M manual, marked, 3-4 Mechanical, 3 microseconds, 3 mm, 5 Motor, -5 motors, N NA, NB, NC, 3 needed, NO, 3 No, 4 normal, Note, - NR, NT, Number, number, O of,, 3-4 OFF, 3-4 Off,, 3-4 off, 3-4 On,, 3-4 on,, 4 one, open, 3-4 opened,, 4 opens, 3-4 operation,, 4 operations, 3 optimization, Optional,, 3 optional, or, -5 other, Output, -3 output,
9 Index P PA, Pack, Page, -5 panel, pilot, 3 Pin, 3 pin, Pins, 3 plug, position,, 3-4 pressure, prevent, process, 3-4 Product, - product, profile, protection, 3 protects, pump, R recommended, 3-4 red, 3-4 reducing, relay,, 3-4 Relays, -5 relays, -3 remain,, 4 remains, 3-4 remote, 3 removed, repeated, 3-4 replaces, required, requirements, resistive, 3 rewiring, RoHS, run, S saves, saving, second, 3-4 Selection, - selector, -3 separate, Sequence,, 4 sequence, sequentially,, 4 Series, -3, 5 service, settings, 3 show, shown, 3-4 Simultaneous, Simultaneously, 4 simultaneously,, 4 Socket, socket, - sockets, space, SPDT, -3 Specification, 3 Specifications,, 3 spring, Standard, -4 standard,, 3 Standards, state,, 3-4 status,, 3 still, 4 STOP,, 4 Stop, -4 such, Support, -5, 3-4 switch, -4 switches,, 4 L, 4 T Tab, -5 Tech, -5 Technical,, 3 than, 3 The,, 3-4 the,, 3-4 then, 4 They, This,, 4 Three, 3-4 three,, 4 Thursday, -5 thus, time,
10 Index Timers, -5 timing, To, 3-4 to,, 3-4 together,, 4 toggles, 3-4 tolerance, 3 Transient, 3 ture, 3 turn, 4 turned, 3-4 turns, 4 Two, two,, 3-4 type, 4 Typical, 3-4 U UL, unit, until,, 4 usage, use, used,, 3 uses, using, will,, 4 Wired,, 3-4 wired, - Wiring,, 3 with,, 3-4 without, Works, www, -5 X XLA, XLB, XLR, XLT, XNA, XNB, XNR, XNT, V VA, 3 Vac, -3 Vdc, 3 Voltage, -3 voltage, 3 volts, 3 Volume, -5 W When,, 3-4 when,, 4 where, which, while,
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