Tyco 1948 Series Manuel

LT0232 VERSION 1.14 26 FEBRUARY 2013 PAGE 1 OF 4

SERIES 1948, 2A POWER SUPPLIES

INSTALLATION & OPERATING INSTRUCTIONS

17 Mary Muller Drive

PO Box 19-545

Woolston

Christchurch 8241

NEW ZEALAND

Tel: +64-3-389-5096

Fax: +64-3-389-5938

To place into operation:

(i) Install the cabinet as per Section 1.

(ii) Wire as per Section 2 (do not connect batteries).

(iii) Configure options as per Section 3.

(iv) Switch mains on and check the voltage, adjust if necessary.

(v) Connect the batteries as per Section 2.

1. CABINET INSTALLATION

WARNING: The 24V 2A models are Class A products. In a domestic environment these products

may cause radio interference in which case the user may be required to take adequate measures.

The cabinet is intended for wall mounting at "eye" level. Allowance should be made for cable entry

(one hole is provided at top of rear wall, near centre). Relevant standards may apply (e.g. AS1670.1

and NZS4512).

The following conditions are required: dry area (inside building); moderate ambient temperature; clear

access for viewing and maintenance.

THE UNIT IS NOT SUITABLE FOR INSTALLATION WITHIN A "HAZARDOUS AREA"

AS DEFINED BY AS3000.

Four mounting holes are provided (5mm diameter) on a rectangular pattern. The unit should be

mounted with at least 2 screws (top and bottom of opposite sides).

2. WIRING

ENSURE MAINS SUPPLY IS ISOLATED AT THE SWITCHBOARD BEFORE CONNECTING

MAINS WIRING MUST BE DONE BY A REGISTERED ELECTRICIAN

Mains Wiring: (Observe all relevant standards, e.g. AS3000)

(a) Terminate the mains cable to the 3-way terminal block: brown to A; blue to N;

green/yellow to E.

(b) Do not "nick" wires when stripping, or leave exposed strands outside of the terminals.

(d) Connect the supply

Field Wiring:

Three terminals (J2) are provided for connection to external loads:

+VNB for non-battery backed loads (e.g. door holders);

+V for battery-backed loads;

0V (for common return of both the above).

Three terminals are provided for connection to internal or co-located equipment. Terminate the wires

with 2mm "fast-on" receptacles, (e.g. Utilux H1129).

Charger Disable- Input (J7), close to 0V with voltage free switch to reduce output voltage to 80%.

LT0232 VERSION 1.14 26 FEBRUARY 2013 PAGE 2 OF 4

Timer Disable- Input (J18) requires a normally open switch (or transistor), close to 0V to terminate and

hold off automatic battery checks.

PSU Fault- Output (J8) is an open collector transistor, closing to 0V when active. Example of wiring a

relay to the PSU Fault- output:

Battery connection: Connect red lead to battery + terminal, connect black lead to battery - terminal.

E.g. For a 24V system connect as shown.

3. CONTROLS & CONFIGURABLE OPTIONS (FIELD ADJUSTMENTS)

Mains On/Off (fuse holder in terminal block acts as a mains switch. Remove fuse to switch off, Fuse is

20x5,1A rating).

- Switches mains (but not the batteries).

Output Adjust (potentiometer PT1 on pcb)

- Adjusts output voltage (and fault thresholds), preset in factory for nominal output.

If field adjustment is required, rotate clockwise to increase voltage, anti-clockwise to decrease.

Timer Disable (remove link LK1 on pcb)

- Disables all automatic battery tests (i.e. battery connected check, hourly and 48 hourly battery

capacity tests).

Current Limit (snip out resistors R13, R14, R15 on pcb).

-Reduces current limit (also charger current rating) if required by battery manufacturer's ratings.

See specifications for details.

Charger Fault (LK2 on pcb)

-If the link is fitted the PSU Fault- output will be active during a charger high or low condition.

Remove the link for AS1603.4 or NZ operation as this feature is not required.

Mains Fail (LK3 on pcb) (software V2.01 onwards)

- If the link is not fitted the PSU Fault output will be active after 90 minutes of continuous mains

failure.

4. STANDARDS COMPLIANCE

To comply with AS1603.4 Clause 2.8.8 an appropriate external battery test load needs to be applied

at the same time as activating the Charger Disable input.

AS4428.5:1998 has two clauses that only need to be complied with if the standard for the product the

PSU is powering requires them. At present there are no such standards. The 1948 PSU cannot meet

Clause 2.2(c) when a short circuit or polarity reversal is applied to the battery terminals. The 1948

PSU does not support disconnecting the battery from the PSU load when the final voltage is reached.

(Clause 2.3(c)).

To signal the loss of mains power (Clause 2.4(a)), remove LK3 (see Section 3 above).

12V

PSU FAULT-

IN4001

LT0232 VERSION 1.14 26 FEBRUARY 2013 PAGE 3 OF 4

5. INDICATORS

Mains On (green LED)

- On when mains is applied and mains fuse is fitted.

Battery/Charger Fault (yellow LED)

- On steady for charger voltage high or low (only when mains is on, inhibited during battery test).

- Flashing for battery not connected, battery voltage low or battery charge capacity low.

Charge/Test (red LED)

- Brightness indicates rate of charge/load current during normal operation.

- Flashing indicates battery test or battery charge capacity test in progress.

6. OPERATION

Automatic Battery Connection Check:

-For this to operate correctly a minimum load is required on either the +V or VNB outputs of:

- 20mA for the 12V supplies;

- 30mA for the 24V supplies.

- Reduces output voltage to 80% for up to 500ms every 30 seconds of continuous mains supply

(uses 50Hz based timer), to allow the battery voltage to be measured.

-If battery low is detected during the test, the output voltage is restored to 100% immediately, the

PSU Fault- output is activated and the Battery/Charge Fault LED flashes until the next battery

connection check passes.

Automatic Battery Charge Capacity Test:

-Reduces output voltage to 80% for up to 90 seconds every hour of continuous mains supply, to

allow the battery voltage to be measured.

-If battery low is detected during the test, the output voltage is restored to 100% immediately, the

PSU Fault- output is activated and the Battery/Charge Fault LED flashes until the next battery

charge capacity test passes.

-If a low battery charge capacity is detected future battery charge capacity tests are carried out at

30 minute intervals until the low battery charge capacity test passes.

Automatic Battery Test:

- Reduces output voltage to 80% for the last 40 minutes of every 48 hours of continuous mains

supply, to allow load to be powered from battery.

- If battery low is detected, the output voltage is restored to 100% immediately, the PSU Fault-

output is activated and the Battery/Charge Fault LED flashes until the end of the 40 minutes.

Reset:

- The timer for the automatic battery checks and tests, and the latched Battery Fault are reset by:

- Removing the Timer Disable link (LK1), or

- Activating the Charger Disable Input (J7), or

- Activating the Timer Disable Input (J18), or

- Turning the Mains switch off.

Note that inputs take approximately 1 second to operate and changes of voltage state take 3-4

seconds to register.

LT0232 VERSION 1.14 26 FEBRUARY 2013 PAGE 4 OF 4

7. SPECIFICATIONS 12V 24V

Ordering Codes

Unit FP0765 FP0766, FP0852

PC Board (inc. mains tfmr) PA0854

Electrical

Mains Voltage 230/240Vac (50 Hz) 230/240Vac (50 Hz)

(+6%, -10%) (+6%, -10%)

Mains Fuse 1A, 20 x 5mm 2A, 20 x 5mm

Nominal Output Voltage (+V) 13.7V 27.3V

Nominal +VNB Voltage 14.4V 28.0V

Current Rating 2.0A 2.0A

Nominal Current Limit 2.15A 2.3A

1.9A (Snip R13) 2.0A (Snip R15)

1.75A (Snip R14) 1.7A (Snip R14 & R15)

1.6A (Snip R14 & R13) 1.4A (Snip R13, R14 & R15)

Battery Protection Device RT2 30V, 6A PTC 30V, 6A PTC

(Mounted on pcb) (non-trip at 25°C) (non-trip at 25°C)

Input Fuse F1 3A slow blow, 20 x 5mm 3A slow blow, 20 x 5mm

(In transformer secondary cct)

Heat Loss 25W 45W

Quiescent Current

From battery with mains off 9mA (typical) 10mA (typical)

Additional load in PSU Fault 6mA 6mA

Minimum load for Battery Tests 20mA 30mA

Voltage Monitoring (+V)

Nominal Charger High 14.1V 28.1V

Nominal Charger Low 13.3V 26.5V

Nominal Battery Low 12.1V 24.2V

Inputs/Outputs

Timer Disable- Input (J18) Requires closure to <1V

"Off" current <2uA

"On" current <1mA @ 1V

Charger Disable- Input (J7) Requires closure to 0V, voltage-free switch.

"Off" current < 5uA

"On" current < 0.1mA

PSU Fault- Output (J8) Switches to 0V for fault (open collector transistor)

"Off" State 30V max

"On" State 20mA max, < 0.5V @ 20mA

Compatible Batteries 12V Sealed lead acid with self-limiting charge current.

Some small capacity batteries may require reduced current limit

(refer Battery details).

Mechanical FP0765 & FP0766 FP0852

Cabinet Material 1.2mm mild steel

Finish (Powdercoat) Cream wrinkle BFF-998-CW Oyster Matt

Dimensions 240mm W x 295mm H x 80mm D 360mm W x 230mm H x 130mm D

(Space for up to 2 12V 6.5Ahr batteries) (Space for up to 2 12V 12Ahr batteries)

Lock L&F cam lock keyed 003 L&F cam lock keyed 003

Weight (unpackaged) 3.95kg (12V), 4.20kg (24V) 5.5kg

Environmental Operating -5°C to 45°C max.

Conditions 95% humidity max (non-condensing)

Approvals

AS1603.4:1987 SSL Test Report XF 1596/R1

AS4428.5:1998 SSL Test Report XF 1596/R1

NZS4512:1997 Central Laboratories Test Report 00-527564.04

AS3548 Parkside Laboratory Reports 5263 & 5263A

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