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Lathem LTR-512 Installer's Manual

Manual is about: MASTER CLOCK

Summary of LTR-512

  • Page 1

    Ltr4-512 ltr8-512 ltr8-512m master clock installer’s guide.

  • Page 2: Installer’S Guide

    This equipment complies with fcc class-b requirements pursuant subpart j of part-15 this device complies with part 15 of the fcc rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received,...

  • Page 3

    Table of contents w elcome 1 p arts l ist 2 m ounting the m aster 3 surface mount ...........................................................................................................................3 semi-flush mount................................................................................

  • Page 4

    [4] = program schedules..........................................................................................................18 [5] = schedule changes............................................................................................................19 [6] = enable or disable circuits......

  • Page 5: Welcome

    Ltrx-512 installer’s guide 1 welcome this installer’s guide covers three different master clocks. The ltr4-512, the ltr8-512 and the ltr8-512m. All three units are installed and programmed in similar fashions. The main difference between the three units is the ltr4-512 has 4 circuits that can be pro...

  • Page 6: Parts List

    Ltrx-512 installer’s guide 2 parts list please check that you received all the parts needed to setup your master: • master clock (ready to surface mount) • user’s guide & installer’s guide • installation hardware kit package of quick-connects package of mounting screws and 2 extra cover screws also ...

  • Page 7: Mounting The Master

    Ltrx-512 installer’s guide 3 mounting the master the master comes ready to surface mount on the wall. However, you can also install the master in a standard 19" rack, recess the power supply into the wall or hide the power supply in the floor or ceiling and hang only the display unit on the wall wit...

  • Page 8

    Ltrx-512 installer’s guide 4 to surface mount the master • place the master on its back with the display unit facing up and the keypad to the right • remove the two screws from just above the display unit • lift the display unit up and away from you. Note that two rivets at the bottom of the cover p...

  • Page 9

    Ltrx-512 installer’s guide 5 the ribbon cable plugged in. For semi-flush mounts, remove the green communications plug from the back of the display unit, so it can sit flat against the wall. Swing the two hooks on the back of the unit up and hook them over the bottom edge of the back box. You can use...

  • Page 10

    Ltrx-512 installer’s guide 6 rack mount the ltr8-512 and ltr8-512m come with two l-shaped brackets (optional on the ltr4-512) so you can install your master in a standard 19-inch rack to install the master in a 19-inch rack • place the master on its back with the display unit facing up and the keypa...

  • Page 11

    Ltrx-512 installer’s guide 7 • using these same screws, attach an “l” bracket (or ear) • repeat to attach the other ear • mount the unit in the rack • follow the wiring steps in the next chapter before attaching the box cover • attach the furnished cover to the power supply using four 6-32 screws (t...

  • Page 12

    Ltrx-512 installer’s guide 8 note: ul regulations require that you do not place high voltage (120v) and low voltage communication cables in the same conduit or through the same knockout holes • follow the wiring steps in the next chapter • for the cleanest installation, mount the display unit over a...

  • Page 13: Wiring The Master

    Ltrx-512 installer’s guide 9 wiring the master • wire the display panel and power relay units for bell control and clock synchronization. Refer to the diagrams in appendix d for more details. Until you complete this part of the wiring, do not turn on the ac power to p4, and keep the power/relay unit...

  • Page 14

    Ltrx-512 installer’s guide 10 • we recommend using stranded wire inside the power supply box. Stranded wire allows for a firm connection to the quick connect terminals. Stranded wires are also less likely to interfere with the relay board components. If you must use solid wire, join the stranded wir...

  • Page 15: Setting Up The Master

    Ltrx-512 installer’s guide 11 setting up the master if you will use the master to sync clocks, you must first use relays #7 & #8 (terminal block p1) for synching. If you have an ltr8-512 or ltr8-512m and will use a second clock type, you must use relays #5 & #6 (terminal block p2) for those clocks b...

  • Page 16

    Ltrx-512 installer’s guide 12 [3][3][2][5][3][7] password: 332537 [#] administrator password accepted return to time and date display after 3 seconds note that if you stop using the keypad for over 5 minutes, you must re-enter your password set the date and time • use function [1] to set the date an...

  • Page 17

    Ltrx-512 installer’s guide 13 enable the relays • use function [6] to enable any control relays that you want to use the enable circuits function only enables you to use certain relays. It does not turn them on. Use function [3] or [4] to actually turn on these relays press display [#] select functi...

  • Page 18

    Ltrx-512 installer’s guide 14 [#] system type code: nn if you are using an ltr8-512 or ltr8-512m and you chose a clock1 type other than 00, you will see select clk2 code: nn [0]..[9] enter the code for clock2, or 00, if none [#] press [#] if correct [#] press [#] to accept -or- [*] press [*] to canc...

  • Page 19

    Ltrx-512 installer’s guide 15 auto test the bells use the auto bell test feature to turn on all bell relays once per minute at the start of each minute. Once you start this function, you can test the continuity of your bell wiring circuits. Use the “hidden code” 2355878 [belltst] to start the auto b...

  • Page 20

    Ltrx-512 installer’s guide 16 you cannot choose function [b] directly. To enter communications, press [#][9][0][0][#] press display [#] select function code [9] press [9], then [0][0] press [0] twice to see [b]=communications [#] communications setup select baud rate: [2]400 -or- [9]600 [2] or [9] e...

  • Page 21: Functions Defined

    Ltrx-512 installer’s guide 17 functions defined [#] starts the programming functions and confirms entries [*] ends program functions and/or cancels entries (except the “quick check”) quick check commands quick check commands display system information for about 2 seconds. You can press any of the th...

  • Page 22

    Ltrx-512 installer’s guide 18 once you enter your password, you can now program your master until it detects that you haven’t pressed a key for 5 minutes. After that, you must re-enter your password to keep programming the administrator password 332537 [dealer] allows you to access advanced function...

  • Page 23

    Ltrx-512 installer’s guide 19 [5] = schedule changes use schedule changes to run schedules at a certain date and time. This function works much like the bell schedule function [4]. Enter your password, then press [#][5][#]. You can program up to 16 changes at a time [6] = enable or disable circuits ...

  • Page 24

    Ltrx-512 installer’s guide 20 setup in function [4]=program schedule. Enter your password, then press [#][8][#] to change a schedule [9] = sync clocks use this function to quickly synchronize any secondary clocks. This function is primarily used during initial installation or if power to your ltrx-5...

  • Page 25

    Ltrx-512 installer’s guide 21 [d] = time calibration (available with firmware version 5.02) the crystal oscillator that provides the time base for the master clock is optimized for operation at 25’ c / 75’f, where it will exhibit its highest accuracy. Due to natural aging of the crystal and to insta...

  • Page 26

    Ltrx-512 installer’s guide 22 1 = faster 2 = slower to exit the time-base calibration procedure, press either [#] or [*]. Example: during installation, set the master clock’s time to match an accurate reference (cell phone display, computer network time, wwvb radio clock, etc.). At the end of one mo...

  • Page 27

    Ltrx-512 installer’s guide daylight savings codes 23 appendix a - specifications electrical: input voltage 120 or 220 / 240 vac @ 60hz or 50hz input power 50 va max (less than 0.5a @ 120v) memory / quartz time backup 10 year (nom.) lithium battery bell / clock control relays 120vac / 28vdc, 10a , pl...

  • Page 28

    Ltrx-512 installer’s guide daylight savings codes 24 appendix b – daylight savings country codes albania 02 england 01 malta 02 andorra 02 estonia 02 monaco 02 armenia 02 falkland islands 10 netherlands 02 austria 02 finland 02 new zealand 11 azerbjan 02 france 02 norway 02 azores 02 germany 02 pola...

  • Page 29

    Ltrx-512 installer’s guide secondary clock types 25 appendix c - secondary clock type codes type description page 01 synchronous wired 26 01 lathem type ss 26 01 cincinnati d10 26 01 ibm 77 series 26 01 simplex 77 ser 26 01 simplex 93-9 26 01 simplex 91-9 26 01 simplex 941-9 26 01 simplex 943-9 26 0...

  • Page 30: Wiring Secondary Clocks

    Ltrx-512 installer’s guide wiring diagrams 26 wiring secondary clocks type 01 - synchronous wired types include: lathem type ss wall clocks cincinnati d10 (115vac), d12 (24vac) ibm 77 series simplex 77 series, 93-9, 91-9, 941-9, 943-9, 6310-9231 stromberg 3000 all circuits should be fused or protect...

  • Page 31

    Ltrx-512 installer’s guide wiring diagrams 27 type 02 - two wire reverse polarity minute impulse (59 th min.) types include: lathem type isc (2-wire) cincinnati d3 all circuits should be fused or protected by a circuit breaker (10amp maximum) type 03 - standard electric synchronous (*old style: dual...

  • Page 32

    Ltrx-512 installer’s guide wiring diagrams 28 type 04 - standard electric time ar-2a two wire dual voltage all circuits should be fused or protected by a circuit breaker (10amp maximum) type 05 - three wire minute impulse (58 th min.) all circuits should be fused or protected by a circuit breaker (1...

  • Page 33

    Ltrx-512 installer’s guide wiring diagrams 29 type 06 - synchronous wired types include: cincinnati d8 faraday (new style: motor + solenoid) honeywell st402a all circuits should be fused or protected by a circuit breaker (10amp maximum) type 07 - dukane 24f200 digital clocks all circuits should be f...

  • Page 34

    Ltrx-512 installer’s guide wiring diagrams 30 type 08 - rauland 2410 digital clocks (24vac and 115vac) 115vac type all circuits should be fused or protected by a circuit breaker (10amp maximum) 24vac type all circuits should be fused or protected by a circuit breaker (10amp maximum) type 09 - simple...

  • Page 35

    Ltrx-512 installer’s guide wiring diagrams 31 type 11 - edwards dual motor all circuits should be fused or protected by a circuit breaker (10amp maximum) type 12 - cincinnati ‘d6’ clocks all circuits should be fused or protected by a circuit breaker (10amp maximum).

  • Page 36

    Ltrx-512 installer’s guide wiring diagrams 32 - electronic coded clocks clocks run normally with 120 vac power. For any bells or clock correction, the generator prestart relay (sk1) first turns on for the signal-generator to reach frequency. Sk1 turns on at the 00 second after a programmed time or m...

  • Page 37

    Ltrx-512 installer’s guide wiring diagrams 33 type 15 - straight frequency clock correction and bell circuit operations are generated by sequentially applying various frequencies onto the 120 vac. Each bell and clock correction circuit has its own frequency. Each bell and clock correction circuit ha...

  • Page 38

    Ltrx-512 installer’s guide wiring diagrams 34 type 16 - three wire minute impulse (59 min) with 12-hour correction types include: simplex 91 and 941 all circuits should be fused or protected by a circuit breaker (10amp maximum) type 16 - two wire reverse polarity minute impulse (59 min) with 12-hour...

  • Page 39

    Ltrx-512 installer’s guide wiring diagrams 35 type 17 - standard electric time ar-2 two wire dual voltage all circuits should be fused or protected by a circuit breaker (10amp maximum) type 17 - standard electric time ar-3 three-wire impulse all circuits should be fused or protected by a circuit bre...

  • Page 40

    Ltrx-512 installer’s guide wiring diagrams 36 type 18 - national synchronous wired types include: dukane 240 series rauland 2463 series all circuits should be fused or protected by a circuit breaker (10amp maximum) type 19 - stromberg synchronous wired types include: stromberg synchronous lathem typ...

  • Page 41

    Ltrx-512 installer’s guide wiring diagrams 37 type 20 - three wire minute impulse (44 th min.) all circuits should be fused or protected by a circuit breaker (10amp maximum) type 21 - cincinnati ‘d1’ all circuits should be fused or protected by a circuit breaker (10amp maximum).

  • Page 42

    Ltrx-512 installer’s guide wiring diagrams 38 type 22 - dukane synchronous wired all circuits should be fused or protected by a circuit breaker (10amp maximum) type 23 - condor digital clocks (model 2412) types include: condor 2412 if the digital clocks lose sync with the ltrx-512, then you can use ...

  • Page 43

    Ltrx-512 installer’s guide wiring diagrams 39 type 23 - condor digital clocks (model 2422) types include: rauland 2422 if the digital clocks lose sync with the ltrx-512, then you can use function [9]=sync clocks to re- sync them. All circuits should be fused or protected by a circuit breaker (10amp ...

  • Page 44

    Ltrx-512 installer’s guide wiring diagrams 40 type 23 - condor digital clocks (bar-ac-4412) if the digital clocks lose sync with the ltrx-512, then you can use function [9]=sync clocks to re- sync them. All circuits should be fused or protected by a circuit breaker (10amp maximum).

  • Page 45

    Ltrx-512 installer’s guide wiring diagrams 41 type 24 - edwards synchronous wired clocks - type e1 all circuits should be fused or protected by a circuit breaker (10amp maximum).

  • Page 46

    Ltrx-512 installer’s guide wiring diagrams 42 appendix d - wiring diagrams fig. D1 - terminal block ‘p4’ wiring the ltrx-512 for 120vac (nom.) operation 1 2 3 4 5 6 7 8 j1 j2 w h t g r n b l k 120 vac all circuits should be fused or protected by a circuit breaker (10amp maximum) wiring the ltrx-512 ...

  • Page 47

    Ltrx-512 installer’s guide wiring diagrams 43 1 2 3 4 5 6 7 8 zone 6 zone 5a zone 5b p 2 voltage in zone 5a & 5b operate together fig. D2 - typical signal device wiring all circuits should be fused or protected by a circuit breaker (10amp maximum) ckt 7a & 7b operate together. You may use either of ...

  • Page 48

    Ltrx-512 installer’s guide wiring diagrams 44 fig. D3 - computer cable (for front access port) (ltr8-512 and ltr8-512m only) fig. D4 - rs-232 cable (for permanent connection to the communications terminal block) (ltr8-512 and ltr8-512m only).

  • Page 49

    Ltrx-512 installer’s guide wiring diagrams 45 fig. D5 - synching up to 60 rs-485 time sync devices without a buffer - 1 2 3 4 5 10 11 12 13 6 7 8 9 txd rxd d + d g n d g n d s y n c d + d - d + d - ~ ~ ~ rs-232 rs-485 sync out sync in 12v~ ac out 250ma modem host communications ltr8-512 & ltr8-512m ...

  • Page 50

    Ltrx-512 installer’s guide wiring diagrams 46 fig. D7 – communication terminal block rear of display unit notes: 1. Twisted-pair (cat-3/cat-5) wire connects directly to terminal block; up to 2 wires per position 2. Pulse-sync input is same as provided in power supply. One (1) second (min.) dry-conta...

  • Page 51

    Ltrx-512 installer’s guide wiring diagrams 47 use the six (6) connections as follows: rs-485 sync time device connection • sync in: terminal block pair used to receive rs-485 synchronization from another lathem master product or radio sync device, or transmit the ltrx-512’s own sync commands to up t...

  • Page 52

    Ltrx-512 installer’s guide wiring diagrams 48 fig. D8 - power supply terminal blocks notes: 1. Circuits ckt1...Ckt4 designate bell controls. Circuit pairs ckt5/ckt6 and ckt7/ckt8 can function as clock synchronization circuits or as bell controls (note: ckt1…ckt4 do not exist on the ltr4-512. Instead...

  • Page 53

    Ltrx-512 installer’s guide installing the modem 49 appendix e – install the optional modem installation of the optional internal modem should be performed by a trained and competent electronics technician. Follow these steps; 1. Turn off the power to the master clock. You can either access the on/of...

  • Page 54

    Ltrx-512 installer’s guide connecting the ltr-rss 50 appendix f – connecting the ltr-rss remote schedule selector the “remote schedule selector” is an accessory for the ltr8-512 master controller and allows an operator to select one (1) of the eight (8) possible schedules stored in the master contro...

  • Page 55

    Ltrx-512 installer’s guide connecting the ltr-rss 51 installation to install the remote schedule selector, • remove the rss from it’s package and locate the four (4) conductor connector (upper left) and the dip switch (bottom center) on the back of the circuit board. • set the hidden address selecto...

  • Page 56

    Ltrx-512 installer’s guide connecting the ltr-rss 52 installation detail.

  • Page 57

    Ltrx-512 installer’s guide connecting the ltr-rss 53 operational description to use the remote schedule selector, the operator will first select, via the rotary switch, which of the schedules is to be made active. The ‘off’ position may be used to de-activate all schedules positions ‘1’ to ‘8’ may b...

  • Page 58: Synchronizer

    Ltrx-512 installer’s guide connecting the ltr-gps satellite receiver/synchronizer 54 appendix g – connecting the ltr-gps satellite receiver / synchronizer lathem’s ltr-gps is a global positioning satellite receiver using 12-channels to access the accurate date and time signal transmitted each second...

  • Page 59

    Ltrx-512 installer’s guide power supply schematics 55 appendix h – power supply schematics ltr8-512 / ltr8-512m ltr4-512 c 3 c 4 c 5 d 1 1 d 1 0 d 9 d 1 2 k 1 k 2 k 3 k 4 k 6 k 7 k 8 k 5 vmm7086 rev. D (c) 2000 lathem time corp. D 3 d 4 d 5 d 6 c 3 c 4 c 5 d 1 1 d 1 0 d 9 d 1 2 k 6 k 7 k 8 k 5 (c) 2...

  • Page 60

    Ltrx-512 installer’s guide power supply schematics 56 for units equipped with an internal modem notice: this equipment complies with part 68 of the fcc rules. On the mounting panel of this equipment is a label that contains, among other information, the fcc registration number and ringer equivalence...

  • Page 61

    Ltrx-512 installer’s guide power supply schematics 57 limited one-year limited warranty lathem warrants the hardware products described in this guide against defects in material and workmanship for a period of one year from date of original purchase from lathem or from an authorized lathem reseller....

  • Page 62

    Ltrx-512 installer’s guide power supply schematics 58 a administrator password...................... 11, 17, 18, 19, 20 auto bell test ......................................................15, 22 b baud rate.............................................................16, 17 bell schedules..............