Power Supplies

Models of the XT+ Extinguishant Control Panel can include the 5.25 Amp or the 10.25 Amp power supply. 5.25 Amp power supplies are capable of charging batteries with capacities ranging from 7 to 60 Ah. 10.25 Amp power supplies are capable of charging batteries with capacities ranging from 12 to 100 Ah. Both power supplies provide an output voltage of 24V and accept input voltages of 115 VAC or 230 VAC.

A jumper connection for the 5.25 Amp power supply is set at the factory according to input voltage requirements of the customer, either 115 VAC or 230 VAC.

The 10.25 Amp power supply does not provide a jumper connection to select between input voltages. This power supply includes a universal input feature that automatically compensates for input voltages between 95V and 250V AC.

Features

Features of the power supplies include:

Features	Description
Deep Discharge Prevention	Prevents deep-discharge of the standby batteries by disconnecting the load when the standby battery-voltage drops below 19 +/- 1V DC. A deep-discharge can cause permanent damage to standby batteries. Preventing this condition allows standby batteries to recharge for continued operation after extended power outages.
Battery Backup	Provides battery power to the load when the AC input of the power supply falls below the rated level. The voltage at the load remains within the specified range during these switching-transitions.
Battery Boost	Boosts standby battery voltage to maintain a constant 22 VDC when the voltage drops below the 22 VDC level.
Short-Circuit Protection	Provides a shut down on the load side of the power supply when the load-current exceeds the maximum level.
Automatic Retry	Restores output to the load when operating conditions return to nominal levels. This feature restores voltage levels at the load following conditions such as over-current and AC restore.
Battery Impedance	Provides a trouble warning when the impedance of the battery reaches a level that could prevent proper system operation.
Battery Supervision	Battery presence and low battery voltage supervision
Ground Trouble Detection	Ground Trouble Detection
General Trouble Relay	All troubles are reported over the common trouble contacts.

DIP Switches

DIP switches are located on the edge of the power supply.

5.25 Amp Power Supply

The following figure illustrates the location of DIP switches on the 5.25 Amp Power Supply:

The tables below describe DIP switch settings 1 through 4 of the 5.25 Amp Power Supply. For UL compliance, DIP switches should be set to the defaults, as shown.

SW1&2 together define the Battery Load Test (also known as Battery Impedance Test)

Switch 1 Switch 2 Description Off (DEFAULT) Off (DEFAULT) Recommended for standard operation. Load test the battery every 59 minutes. Measured voltage drop > 900mV fails the test. Off On NOT USED. Load test the battery every 59 minutes. Measured voltage drop > 1100mV fails the test. On Off Disable trouble reporting of disconnected standby batteries. Load test the battery every minute. Measured voltage drop > 900mV fails the test. This setting also masks BATTERY_MISSING troubles. On On Disable trouble reporting of standby battery impedance. No load test performed.

Switch setting 3 is not used on the 5.25 Amp Power Supply and should be set to OFF.

SW4 defines Battery Manufacturer.

Switch 4	Description
On (DEFAULT)	Sets standby batteries for the Powersonic manufacturer.
Off	Sets standby batteries for the Yuasa manufacturer.
Other manufacturer batteries can be used. Consult the manufacturer's datasheet for proper settings.

10.25 Amp Power Supply

The tables below describes DIP switch settings 1 through 4 of the 10.25 Amp Power Supply.

For UL compliance, DIP Switches 1 and 2 must be set to the default, as shown.

Switch 1: Operating Mode On Special Application Mode Off (DEFAULT) Recommended for standard operation. Switch 2: Ground Trouble Detection On (DEFAULT) Static: Setting required for interfacing to legacy products. Ground is pulled to a static voltage between 24V and RTN (1/2 of 24V-OUT). Off Dynamic: Ground is pulled to a dynamic voltage, varying from 6-18V over a 6 second period. Switch 3: Battery Size On Sets standby battery capacity ≤ 18 Ah. Off Sets standby battery capacity > 18 Ah. Switch 4: Battery Manufacturer On Sets standby batteries for the Powersonic manufacturer. Off Sets standby batteries for the Yuasa manufacturer.

• Disabling Battery Indication - Set DIP switch 1 to the ON position, DIP switch 3 to the ON position and DIP switch 4 to the OFF position to disable the "BATTERY DISCONNECTED" warning indication.
• Disabling the Impedance Test - Set DIP switch 1 to the ON position and DIP switch 3 to the OFF position to disable the battery impedance test and trouble reporting.

Special Application Mode Table

SW1	SW2	SW3	SW4	Battery Mfr.	Battery Size	Ground Trouble Detection	Impedance Test Intervals	Battery Missing Trouble
ON	ON	ON	ON	RESERVED FOR FUTURE USE
ON	ON	OFF	ON	PowerSonic	> 18 Ah	Static	Disabled	Reported
ON	ON	ON	OFF	Yuasa	< 18 Ah	Static	1 min	Masked
ON	ON	OFF	OFF	Yuasa	> 18 Ah	Static	Disabled	Reported

Light shading of the table indicates "production" or "demo" use.
Dark shading of the table indicates a "normal, but impedance test disabled" use.

Status Indicators

LED Indicator	Condition
AC NORMAL	The AC power is connected.
EARTH FLT	The 24V DC supply is connected to the ground.
CHARGER FAULT w/ abnormal HEARTBEAT	An internal fault has been detected in the power supply module. The HEARTBEAT indicator blinks different patterns to indicate the fault. 1-1 AC Power is on and 24V output is not in regulation. 1-2 The battery voltage is too high. 1-3 The battery charge current is too high. 1-4 The battery charge current is low while the charger output current control is MAXed.
BATTERY LOW (no CHARGER FAULT)	The unit is operating from battery and the battery voltage is below 21 V OR The unit is operating from AC power and the battery voltage is below 24 V.
BATTERY LOW and CHARGER FAULT	The battery impedance exceeds the acceptable limit. Install new batteries.
BATTERY DISCON	Standby batteries are disconnected.
HEARTBEAT	The power supply is functioning.
DC OUT ON	The 24V DC supply is supplying power to the load.