Owner’s |
ATS Annunciator |
Manual |
Catalog 214A400, 214A401, 214A404 |
DANGER is used in this manual to warn of high voltages capable of causing shock, burns, or death.
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WARNING is used in this manual to warn of possible personal injury.
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CAUTION is used in this manual to warn of possible equipment damage.
Master ATS Annunciator
Catalog 214A400, 214A404
General
There are three types of ATS (Automatic Transfer Switch) Annunciators. They are identified as follows:
Catalog 214A400 Master Unit
Catalog 214A404 Master Unit used with a Network Supervisor
Catalog 214A401 Slave Unit
Each installation must have a master unit; each master unit can support two slave units. Each unit can annunciate four ATSs. Therefore a master and two slave units can annunciate up to twelve ATSs. To annunciate more ATSs, additional masters and slaves can be added.
ASCO Catalog 214A400, 214A404, and 214A401 ATS Annunciators are designed to provide remote visual status reporting and push button testing of ASCO automatic transfer switches. Each ATS must have a Group 1*, 5, 6, or 7 Microprocessor Controller with Accessory 72A Serial Communication Interface Option installed.
*Note: Group 1 Controller must have version 8 or lower software (dash number on microprocessor).
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Ratings |
Nominal Input Voltage |
. . . . . . . . 16 V ac 50 or 60 Hz, |
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. . . . . . . . . . . or 12 or 24 V dc |
Volt-Ampere Burden . |
. . . . . . 10 VA max @ 16 V ac |
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. . . . . . 0.5 A max @ 24 V dc |
Environmental Temperature Range ---20˚C. to +70˚C.
Transient Withstand . . . . . . . . |
per NEMA ICS 1---109 |
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Surge Withstand (SWC) . . . . . . |
. IEEE Std 472 |
---1974 |
. . . . . . |
ANSI C37.90A |
---1974 |
Max total distance for Communication Line 4000 ft
(Master with 2 Slaves)
For greater distances contact ASCO.
Catalog 214A401 Slave ATS Annunciator
An experienced licensed electrician must install the ATS Annunciator.
Table of Contents |
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section-page |
Iinstallation . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . 1-2 |
Setting Up the ATS Annunciator . . |
. . . . . . . . . 3-5 |
Operation and ATS Testing . . . . . . |
. . . . . . . . . . 6 |
Troubleshooting . . . . . . . . . . . . . . . . |
. . . . . . . . . . 7 |
50 Hanover Road, Florham Park, New Jersey 07932–1591 USA |
381333–063 B |
For sales or service call 1 800 800–2726 (ASCO) www.ascopower.com |
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ASCO POWER TECHNOLOGIES CANADA PO Box 1238, 17 Airport Road, Brantford, Ontario, Canada N3T 5T3 telephone 519 758–8450, fax 519 758–0876, for service call 1 888 234–2726 (ASCO) www.asco.ca
Serial Communications
Serial communications permits large amounts of information to be processed over a few wires. In the serial communications systems used by ASCO, each individual device in the system --- automatic transfer switch, bypass-isolation switch, ATS annunciator, etc. --- has a unique code, or address, that is assigned to it through DIP switches in the devices. According to the established ASCO serial communications rules, or protocol, each ATS annunciator and/or the network supervisor on the communication link “talks” to all automatic transfer switches and other elements being monitored on the link at the same time. They all “hear” what is being said, but only the device that is addressed responds.
Sending and receiving requests and commands is done over the same pair of twisted wires linked in a network fashion from one device to another to form the communication link, or highway. This physical configuration comprises a network in which only the addressed device is permitted to go on line and respond to an inquiry. With this serial communications system, a minimum number of wires can be used to link the elements together. Without serial communications, it would take considerably more wires to accomplish the same thing.
INSTALLATION
The ATS Annunciator has been tested and is ready to use. Installation simply requires mounting, connecting power and communication wiring, and setting DIP switches. When unpacking the unit, locate the loose parts which are supplied in a separate kit. The kits contain the following parts:
Master Kit 401091 |
Slave Kit 401092 |
label holder labels |
label holder labels, |
& 2 resistors |
2 resistors, & ribbon cable |
The Master ATS Annunciator can be readily identified by the front mounted key switch (to prevent unauthorized operation). You will find the key taped inside the back panel. Up to two Slave ATS Annunciators can be mounted directly above or below the Master. All three ATS Annunciators are then interconnected by means of ribbon cables. All external wiring for power and serial communication line connects to the Master ATS Annunciator. Observe the requirements of the National Electrical Code (especially Articles 725 and 800) and any local codes when interwiring.
Mounting
An Outline and Installation drawing (JS 387797) is included in the back of this manual. The two---part enclosure, which measures 10I wide x 6I high and 2I deep, is designed for mounting to the standard wall boxes listed on the drawing. After removing the front cover the hinged circuit board opens to the right to expose the mounting holes in the base.
Loosen four screws to remove the cover as shown in Figure 1. Remove four screws and remove the face plate. Then remove the two left standoffs and swing the hinged circuit board to the right as shown in Figure 2. You will find the key taped to the back panel. Run the power wires (and insulated ground wire) and communication cable (twisted pairs) through the center hole in the back of the enclosure, then to the right through the notch in the circuit board. Attach the ATS Annunciator to the wall box by using the mounting holes that line up. Swing the circuit board closed again. Reinstall the two standoffs and tighten them securely. Reinstall the face plate with four screws.
Connecting Slave ATS Annunciators
Connect the Slave ATS Annunciator(s), when used, to the Master. Remove the adhesive labels from the slotted openings as shown in Figure 2.
Then run the ribbon cable between ATS Annunciators and plug each end into the adjacent sockets. Two Slaves may be connected to one Master either by above and below arrangement or two below arrangement. See the Outline and Installation drawing for details.
face plate screws
cover |
cover screws |
Figure 1. |
Cover removal. |
power wires, insulated ground wire, |
hinged circuit board |
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and communication cable |
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slotted opening for ribbon |
standoff |
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cable and removable label |
face plate |
Figure 2. Hinged circuit board (Master).
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INSTALLATION
Power Wiring
The Master ATS Annunciator can be powered by either an ac or dc source (but not both) as shown on the Outline and Installation drawing 387797 and in Figure 3. For ac wiring use a Class 2 bell transformer with a 120 V ac primary and a 16 V ac secondary (12 VA minimum). Connect the ac wiring to terminals 9 and 10; connect the ground to terminal 1. For dc wiring connect a 12 or 24 V dc power source (750 ma) to terminals 7 (---) and 8 (+).
!
To prevent damage do not energize the circuit at this time.
Communication Wiring
Connect one end of the transmit and receive communication cable (twisted pairs) to terminals 3 through 6 on the Master ATS Annunciator as shown on the Outline and Installation drawing 387797 and in Figure 3. Refer to the Daisy Chain and Star configuration hook up drawings for typical arrangements. Use communication cable specified in Figure 3. This cable has two twisted pairs (4 wires) and an overall shield. All twisted pair shields must be connected to terminal 2 for grounding. The earth ground is connected to terminal 1 and internally jumpered to terminal 2. Two resistors are supplied. Connect one resistor (390 Ohm, 1/4 Watt, 5%) between terminals 5 and 6 on Master 1 only. See Figure 3. (The other resistor will be connected at the automatic transfer switch furthest away.) Two twisted pairs can be connected to the ATS Annunciator terminal block. Use a separate terminal block (not supplied) mounted in a separate wall box if more connections are necessary, as shown in Figure 4.
shield gnd |
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Acceptable |
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Communication Cable |
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T+ |
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Standard 80˚ C |
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T--- |
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R+ |
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Belden 1419A |
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R--- |
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Belden 9842 |
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resistor on |
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Belden 9829 |
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Master 1 only |
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Alpha 6202C |
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Alpha 6222C |
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Plenum Rated |
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Belden 89729 |
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Belden 82729 |
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Alpha 58902 |
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Figure 3. Terminal block (Master). Located on right side of circuit board.
Figure 4. Typical separate terminal block.
Networks for Interconnecting ATS Annunciators and ATSs
Refer to Drawing JS 401900 Sheets 1 through 4 for typical interconnection schemes. The Daisy Chain configuration utilizes a single run of communication cable with all of the equipment connected in parallel as shown on Sheet No. 1. This type of network utilizes the least amount of cable and is probably the most popular approach when long line runs are anticipated. Depending on the desired reliability of the system, some consideration should be given to the effect of a cable break. If the cable is broken all ATSs beyond the break will lose their communication. It should be kept in mind that annunciator lamps will flash if a disconnection occurs. Also, a disconnection of the communications cable will in no way impair the operation of the automatic transfer switch.
Star networks can be used as an alternate configuration as shown on Sheet No. 2. With this approach, greater reliability can be achieved because a disconnect of the cable between the junction box and the ATS will only impair one switch.
Depending on location of this equipment it may sometimes be advantageous to use combinations of Daisy Chain and Star networks. Typical configurations are shown on Sheets No. 3 and 4.
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