DECLARATION OF CONFORMITY A printed version of the Declaration of Conformity has been provided separately within the original shipment of goods. However, you can find a copy of the latest version at http://www.mtl-inst.com/certificates GENERAL SAFETY INFORMATION The following methods are used in this manual to alert the user to important information:- WARNING ! Warnings are provided to ensure operator safety and MUST be followed.
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Figures Figure No. Description Page No. Examples of a 20 and 12 way UC625 Alarm Annunciator viii Panel Fixing Arrangement Channel Numbering Typical Connection Details Typical Connection Details (revised layout post January 1st 2008) Power Connection Details (revised labelling post January 1st 2012) Optional Remote Pushbutton Connections Optional Remote Horn Connections Standard Signal Input Connections...
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Tables Table No. Description Page No. UC625 Dimensions Manual Reset ISA-Sequence M Automatic Reset ISA-Sequence A Non Lock-in Function ISA-A-4 Sequence Ringback ISA-R Sequence Automatic Reset First-up ISA-F1A Sequence Manual Reset First-up ISA-F2M-1 Sequence Status Only ISA-A-4-5-6 Sequence Input Configuration De-Energised (Energise On Alarm) or Energised (De-Energised on Alarm) Relay Contact Normally Open or Normally Closed (De-Energised Relay State) Logic Follower...
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INSTRUMENTS MAIN DC SUPPLY FAIL AUX DC SUPPLY FAIL SUPPLY 1 SUPPLY 2 TEST MUTE RESET UC625 INSTRUMENTS SUPPLY 1 SUPPLY 2 TEST MUTE RESET UC625 Figure 1 - Examples of a 20 and 12 way UC625 Alarm Annunciator viii INM UC625 rev 24...
725B range of Alarm Annunciator INTRODUCTION The RTK UC625 range of Alarm Annunciator systems are designed to give LED indication of an alarm condition, where a high degree of reliability and flexibility is required. Each system comprises a compact cabinet, removable legend plate, universal Alarm Cards and a Supply/Pushbutton/Relay (SPR) Card which gives maximum annunciator density whilst maintaining a practical legend area and neat front panel appearance.
MODEL NUMBER DESCRIPTION UC625 Model no prefix Number of available alarm channels [Not including the 2 power failure alarms] LED colour RD = Red (Standard) Input supply 1 universal (88-300VDC or 88-265VAC) Input supply 2 specify option H or L 024D 24VDC signal supply voltage OR Options for 48/110/250VAC/DC signal supply inputs...
SYSTEM DESCRIPTION AND FEATURES 2 .1 General The units can be manufactured in a range of sizes to suit individual applications. All units are designed to be 4 alarm ways high but the number of windows wide is variable. This allows RTK to provide systems suitable for 12, 16, 20, 24, 28, 32, 36 or 40 channels and all units are provided with two additional channels used for monitoring the two integral supplies, Supply 1 and Supply 2...
In sub station applications it is common for a number of annunciators to share a common set of controlling pushbuttons, the pushbutton inputs can therefore be connected between units as required. In addition to the full alarm capability each power failure alarm channel is also equipped with a Signal Duplicating Relay to allow notification of power failure to 3rd party devices.
INPUTS & OUTPUTS 3 .1 Customer Connections All connections to the alarm board inputs and outputs are made via quick disconnect, rising clamp, two part plug-able connectors. WARNING ! Power supplies using high voltage AC/DC primary sources and optional high voltage field contact voltages may be present. Ensure that the annunciator is powered down before working on the unit or any connected apparatus.
3 .5 Response Time Each channel within the annunciator can have a pre-defined min response time set to one of the following times:- 5ms, 25ms, 50ms and 100ms using DIL switches mounted on each alarm card. Unless otherwise requested at the time of order units are shipped with a factory setting of 25ms but can be easily changed to 5mS, 50mS or 100mS as described later in the manual.
MECHANICAL DETAILS 4 .1 Alarm Card Each alarm card provides all common alarm sequences as listed in the ISA specification “Alarm Sequences and Specifications S18.1 1979 (R1985”). The universal alarm card plugs into the edge connectors mounted on the inside of the motherboard, the size of motherboard being determined by the total number of alarms required.
SEQUENCES 5 .1 Summary From the sequence tables shown later in the manual, it will be evident that an alarm occurring causes a flashing visual indication with audible. Mute is used to silence the audible only. Acknowledge stops the flashing and audible. Please note:- If a new alarm occurs on an already acknowledged system, the horn will re-sound and the new alarm will flash in accordance with the selected sequence.
5 .5 Reflash Feature In the standard mode, when an alarm has occurred and the acknowledged pushbutton activated, any further changes of state to the alarm contact will not affect the alarm window display. With reflash enabled any alarm that returns to normal and re-occurs will re-initialise the window.
5 .10 Sequence Configuration and Tables Each pair of alarm channels can be configured to suit the operating sequence required, as listed in the ISA publication “Alarm Sequences and Specifications” S18.1 1979 (R1985)” . Systems can be configured with different features on each pair of alarms and there is no need to switch the power off.
PROCESS PUSHBUTTON VISUAL AUDIBLE Normal Abnormal Flashing Normal Before Ack Abnormal Acknowledge Normal Table 4 Sequence features 1. System test simulates an abnormal plant state on all alarms 2. Alarms should be set to non-lock-in 3. Alarms will automatically return to the off state as soon as the input returns to the normal 5 .10 .4 Ringback ISA-R Sequence...
5 .10 .6 Manual Reset First-up ISA-F2M-1 Sequence PROCESS PUSHBUTTON VISUAL AUDIBLE Normal 1st Alarm Abnormal Flashing Subsequent Abnormal Acknowledge 1st Alarm Abnormal Subsequent Abnormal Normal Reset Table 7 Sequence features 1. System test simulates an abnormal plant state on all alarms 2.
FEATURES 6 .1 Input Configuration Each pair of alarm inputs can be configured to operate from either a normally open or normally closed Input Contact. FUNCTION ALARM CARD CHANNEL 1 - 2 3 - 4 SW3.S8 SW5.S8 Normally Open Normally Closed Table 9 6 .1 .1 Signal Duplicating Relays...
6 .1 .2 Repeat Relay Mode Of Operation The repeat relays can be configured to operate as: - 6 .1 .3 Input Follower The relay will activate when an alarm occurs and automatically return to normal when the alarm returns to the normal state. 6 .1 .4 Logic Follower The individual relay will activate when an alarm occurs and only return to normal when the...
6 .1 .9 Dual Audibles And Dual Horn Relays Two audible alarms and two horn relays designated critical and non-critical are fitted to the SPR card as standard. FUNCTION CRITICAL HORN NON CRITICAL HORN Alarm Card Channel SPR Card Alarm Card Channel SPR Card 1 - 2 3 - 4...
Each unit is equipped with a common alarm relay RL3 to allow a summary alarm contact to be wired to 3rd party devices. FUNCTION ALARM CARD CHANNEL SPR CARD 1 and 2 3 and 4 1 and 2 Enable SW4.S3 = ON SW6.S3 = ON SW5.S2 = ON Disable...
6 .1 .14 Input Follower . The common alarm relay will active when an alarm occurs and automatically return to normal when all alarms have returned to the normal state. 6 .1 .15 Logic Follower . The common alarm relay will active when an alarm occurs and only return to normal when all alarms have returned to the normal state and the logic has been reset.
7 .4 General Supply 1 - 88-265VAC or 88-300VDC Supply Voltage Supply 2 - 88-265VAC or Option Supply 2 - 24VDC 88-300VDC (19-31VAC/DC) WARNING ! Mains supply lines to Supply 1 and Supply 2 (if mains type fitted) must be protected by external 1A/T fuses.
INSTALLATION WARNING ! Installation, configuration and maintenance of this annunciator must only be performed by competent service personnel WARNING ! The UC625 is designed for panel mounting. The rear portion of the annunciator must be protected by an enclosure that is at least IP30 and can only be accessed using a key or tool.
8 .2 Cabinet Fixing The annunciator system as received will be ready to install into the panel cut-out. Firstly remove the frame clamps, the unit is then passed through the panel cut-out as far as the ‘picture frame’ trim and is secured from behind with the frame clamps and screws which are located into the frame extrusion as shown in the drawing below..
8 .4 Connection Details WARNING ! Hazardous voltages may exist on the rear connections of the annunciator. Remove all power before removing any cover or connector. Ensure all covers and connectors are fully secured before restoring power. All Customer connections are available on the rear of the Motherboard mounted on the back of the annunciator as shown on the figure below.
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complete with locking screws suitable for a max of 2.5mm2 cables per the revised layout shown below INTERNAL SIGNAL SUPPLY DISTRIBUTION OV +V +VOP 125 mA/T 0VOP 0VOP SIGNAL INPUTS SIGNAL SUPPLY FAILURE 9 - 12 5 - 8 1 - 4 CONTACT OUTPUT CHANNEL NO COMMON ALARM OUTPUT...
8 .5 Power Connections RTK range of UC625 annunciators are supplied as standard with two integrally mounted universal Input power supplies (supply 1 and 2) capable of accepting either SUPPLY VOLTAGE TERMINAL BLOCK TERMINALS 88-265VAC or PG2 Supply 1 +/L and -/N 88-300VDC 88-265VAC or PG2 Supply 2...
8 .7 Signal Supply The standard UC625 generates an internal redundant +24VDC for use as the signal supply voltage. In this instance the signal supply voltage is protected by fuse F1 located in the top left hand corner on the rear of the enclosure and internally linked to all of the “C” terminals of the UC625 for distribution to the associated signal input contact.
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In sub-station applications it is common for a number of annunciators to be wired to one common set of Test, Acknowledge and Reset pushbuttons which only control the power failure alarms fitted within individual annunciators. Option 2 In other applications both alarms and power failure alarms are to be linked to a common set of Test, Acknowledge and Reset pushbuttons.
8 .7 .5 Standard Inputs Connections In standard systems +24VDC is provided by the annunciator for use as a signal supply. In this instance +VC is internally linked by the motherboard to fuse F1 and then distributed to ALL of the “C”...
8 .7 .6 Powered Inputs @ 24VDC If required, the standard unit can be wired to accept +24VDC customer powered inputs. This is achieved by connecting the OV of the customers signal supply to terminal OVC on the UC625. Terminal OVC is internally linked as a common return for all channels. +24VDC can then be used as a direct connection to the associated Input or it can be +VC and internally linked to the common “C”...
8 .7 .7 Higher Voltage Powered Inputs If specified at the time of order RTK can supply the unit suitable for use with high voltage signal inputs there are 3 options available • 48VAC/DC • 110VAC/DC • 250VAC/DC. Where 250V Field Contact Voltage inputs are used, the FCV supply wiring must be externally fused according to the details on page 27 .
8 .7 .8 Sleep Mode Sleep mode is typically used in sub station applications where the visual and audible outputs are disabled during unmanned periods to reduce the drain on the associated station batteries. Whilst in sleep mode the logic of the annunciator will continue to react in the normal way including the operation of common alarm relays and individual channel signal duplicating relays only the drive signals to the LED’s and audibles are disabled.
SYSTEM DIL SWITCH LOCATION AND FUNCTIONS WARNING ! Remove ALL power from the unit and fully remove the card before changing any jumpers or switches The (4) channel alarm cards part no CB5303POP* can be accessed after removal of the front panel legend plate.
CB5303POP* ALARM CARD 1 2 3 4 5 6 7 CONTACT SET 1 2 3 4 5 6 7 NORMALLY CLOSED FPGA AS10601-0 NORMALLY OPEN Figure 14 - Alarm Card DIL Switch Location (FPGA version) 9 .1 DIL Switch Functions On Alarm Cards Sleep mode is typically used in sub station applications where the visual and audible outputs are disabled during unmanned periods to reduce the drain on the associated station batteries.
9 .2 Identifying Card Types – UPTO NOV 2012 The Applications Specific Integrated Circuit (ASIC) used on the UC625 annunciator varies depending on the options specified at the time of order CB5303POP* ALARM CARD FCV = 24VDC SET FOR 24VDC SUPPLY VOLTAGE 1 2 3 4 5 6 7...
9 .3 Identifying Card Types – AFTER NOV 2012 On UC625 annunciators supplied after Nov 2012 the ASIC has been replaced by an FPGA CB5303POP* ALARM CARD 1 2 3 4 5 6 7 CONTACT SET 1 2 3 4 5 6 7 NORMALLY CLOSED FPGA...
9 .4 Alarm Card Input Response Settings STANDARD VERSIONS – UPTO Nov 2012 On standard versions of the UC625 Annunciator Switch SW1 & SW2 are used to set the response time for each channel as detailed below. ASIC version AS5317 is used on standard versions. CHANNEL SWITCH 25MS...
9 .5 Alarm Card Input Response Settings M3 / M4 OPTION VERSIONS If specified at the time of order the UC625 Annunciator can be supplied with alternative response time settings as shown below. Suffix Code M3 or M4 in the Model No is used to signify that the alternative response times are available.
9 .6 Alarm Card Input Response Settings STANDARD VERSIONS – AF- TER Nov 2012 UC625 Annunciators supplied after Nov 2012 are equipped with the following response time settings ASIC version AS6454 is used on M3 / M4 versions. CHANNEL SWITCH 25MS 200MS SW1-S2...
9 .7 Alarm Card Input & Sequence Settings (Set In Pairs) – Pre Nov 2012 Switch SW3 and SW5 are used to set the alarm sequence, Input reflash, Ringback, Automatic Reset, Non Lock In, First Up and inputs suitable for use with either Normally Open or Normally Closed Inputs.ASIC version AS6454 is used on M3 / M4 versions.
9 .8 Alarm Card Relay And Horn Settings (Set In Pairs) Switch SW4 and SW6 are used to control the operation of the individual channel repeat relays, group relays and audible alarms SW4 controls channel 1 & 2, SW6 controls channel 3 & 4 SWITCH STATE FUNCTION...
9 .9 Alarm Card Settings for CARDS SUPPLIED AFTER Nov 2012 Switch SW1 (Channels 1 & 2) & SW2 (Channels 3 & 4) are used to set:- • The Input State to either N/O or N/C • The response time for each channel as detailed below •...
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SWITCH STATE FUNCTION NORMALLY CLOSED INPUT SW2-S1 NORMALLY OPEN INPUT CHANNEL 3 – RESPONSE TIME CHANNEL SWITCH 25MS 200MS SW2-S2 SW2-S3 CHANNEL 3 – FAST RETURN TO NORMAL SWITCH STATE FUNCTION SW2-S4 5mS FAST RETURN TO NORMAL CHANNEL 4 – INPUT STATE SWITCH STATE FUNCTION...
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Reset, Non Lock In, First Up and inputs suitable for use with either Normally Open or Normally Closed Inputs. SW3 controls channel 1 & 2, SW5 controls channel 3 & 4 SWITCH STATE FUNCTION CH1 & CH2 CH3 & CH4 6 7 8 SW*-S1 SEE SEQUENCE SECTION (See Last Page)
9 .10 Alarm Card Relay And Horn Settings (Set In Pairs) Switch SW4 and SW6 are used to control the operation of the individual channel repeat relays, group relays and audible alarms SW4 controls channel 1 & 2, SW6 controls channel 3 & 4 CH1 &...
9 .11 DIL Switch Settings SPR Card The Supply / Power / Relay, (SPR), card is accessed after removing the front legend plate assembly by removing the associated screws. The SPR card is equipped SW5 & SW6 DIL switches, which are used to select various options as detailed on the following pages.
9 .12 SPR Card Horn, Relay And Pushbutton Settings Switch SW5 on the common Supply / Power / Relay, (SPR), card allows the user to select options associated with relays, audibles and pushbuttons to suit individual applications SWITCH STATE FUNCTION NORMALLY DE ENERGISED POWER MONITOR RELAYS SW5-S1 NORMALLY ENERGISED POWER MONITOR RELAYS...
9 .13 Automatic Acknowledge Timer (Located On SPR Card) Switches SW6-S1 & SW6-S2 are used to control the integrated timer used to provide automatic acknowledge after a pre-set delay period. The timer can be set to operate the automatic acknowledge after 15, 50 or 170 seconds or it can be disabled as required.
MAINTENANCE WARNING ! Installation, configuration and maintenance of this annunciator must only be performed by competent service personnel WARNING ! Power supplies using high voltage AC/DC primary sources and optional high voltage field contact voltages may be present. Ensure that the annunciator is powered down before working on the unit or any connected apparatus.
10 .6 Fuse replacement Each UC625 annunciator can contain a maximum of two fuses. One is used to protect the signal supply voltage on standard 24VDC versions and Fuse F1 is situated on the rear of the enclosure in the top right hand corner as detailed below. The second fuse is located in a surface mount socket on the Supply/Pushbutton/Relay (SPR) Card and is used to protect the power input on Supply 2 on versions where 24VDC is used as an aux supply.
EXPANSION UNITS 11 .1 Master and Expansion UC625 Units All UC625 units shipped after August 2004 are equipped with a 10 way ribbon connector that allows the user to connect either a single or multiple expansion UC625 units. Examples If a user requires a 56-way alarm unit it is possible to Install 1 x 28 way UC625 master Unit and 1 x 28 way UC625 expansion unit If a user requires a 84-way alarm unit it is possible to install 1 x 28 way UC625 aster Unit and 2 x 28 way UC625 expansion units...
11 .2 UC625 Master & Expansion Rear Terminal Views REAR VIEW Units shipped August 2004 to Dec 2007 CHANNEL NO 9 - 12 5 - 8 1 - 4 +V_OP 125 mA/T 0V_OP 0V_OP COMMON ALARM OUTPUT TYPICAL SIGNAL INPUTS ALARM HORN A OUTPUT EXPANSION BUS ALARM HORN B OUTPUT...
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+VOP 125 mA/T 0VOP 0VOP SIGNAL INPUTS SIGNAL SUPPLY FAILURE 9 - 12 5 - 8 1 - 4 CONTACT OUTPUT CHANNEL NO COMMON ALARM OUTPUT CONTACT OUTPUT ALARM HORN A OUTPUT CONTACT OUTPUT ALARM HORN B OUTPUT CONTACT OUTPUT SUPPLY 1 INPUT OVOP SUPPLY 2 INPUT...
OPTIONS Additional options have been developed since the launch of the UC625 Alarm Annunciator but please note these options must be specified at the time of ordering. 12 .1 Option 00 Horn Disable On System Test When the system test pushbutton is pressed on standard UC625 units it simulates a full alarm state and verifies that the visual and audible circuits are operating correctly.
TROUBLE SHOOTING GUIDE The following section is issued as a guide to aid fault finding on the UC625 alarm annunciator. Units are shipped from the factory with the default settings highlighted in each section within this manual unless otherwise advised at the time of order. As a number of features can be enabled or disabled by the user using the DIL switches located on the alarm and SPR modules it is recommended that a note is made of any switch settings prior to fault finding.
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Although the field If alarms are set to operate from normally closed contacts and contacts are known to the signal supply fuse blows all alarms will operate as though be in the non alarm an alarm has occurred and after the ack and reset pushbuttons condition the alarms have been pressed the alarms will remain in steady on state and remain in the on state...
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Individual channel All UC625 alarm annunciators are equipped with Individual repeat relays operate channel repeat relays, which are used to initiate 3rd party during Test devices. The user can select whether each pair of repeat relays activate when the test pushbutton is pressed or if they should be inhibited.
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Individual repeat relays The operation of the repeat relays is selectable by the user do not act as slaves of to either follow the signal contact or to remain in the alarm the signal input state until the input has returned to normal and the operator has cleared the alarm.
OTHER PRODUCTS MTL PROCESS ALARM EQUIPMEN Eaton produces a range of products for many applications in the Industrial Control and Instrumentation field, for both safe and hazardous areas, as listed below. • Alarm Annunciators • Remote Logic Alarm Systems •...
SWITCH SETTINGS PER ALARM SEQUENCE Card Switch Settings Required To Set Alarm Sequences Card Switch Settings Required To Set Alarm Sequences Sequence Card Channels Switch Page ISA-MManual 1 - 2 ON *** ON *** Alarm Reset 3 - 4 ON *** ON *** 1 - 2 SPR Card is supplied in Sequence ISA-M ONLY...
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