Altronix OLS250 Installation Instructions User Manual

Ols250 offline switching power supply/charger

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Overview:

The OLS250 is a power supply/charger that converts 115VAC / 60Hz input, into a 24VDC @ 10 amp continuous supply
current (see specifications).

Specifications:

OLS250
Offline Switching Power Supply/Charger

• 24VDC output.
• Input 115VAC / 60Hz, 1.9 amp.
• Maximum charge current 0.7 amp.
• 10 amp continuous supply current.
• Filtered and electronically regulated outputs.
• Built-in charger for sealed lead acid or gel type batteries.
• Automatic switch over to stand-by battery when AC fails

(zero voltage drop).

• AC input and DC output LED indicators.
• AC fail supervision (form "C" contacts).
• Low battery supervision (form "C" contacts).
• Short circuit overload protection.
• Includes battery leads.
Board Dimensions (approximate): 4.25”L x 4.5”W x 1.75”H

Specified at 25˚ C ambient.

Installation Instructions:

The OLS250 should be installed in accordance with The National Electrical Code and all applicable Local Regulations.
1. Mount the OLS250 in desired location/enclosure.
2. Slide [Power ON/OFF] switch to OFF position (Fig. 1a, pg. 2).
3. Connect AC power to terminals marked [L & N], connect ground to terminal marked [G] (Fig. 1, pg. 2).

Use 18 AWG or larger for all power connections (Battery, DC output, AC input).
Use 22 AWG to 18 AWG for AC Fail/Low Battery reporting (Fig. 1b, pg. 2).

4. Slide [Power ON/OFF] switch to ON position (Fig. 1a, pg. 2).
5. Measure output voltage before connecting devices. This helps avoid potential damage.
6. Slide [Power ON/OFF] switch to OFF position (Fig. 1a, pg. 2).
7. Connect devices to be powered to terminals marked [--- DC +] (Fig. 1, pg. 2).
8. When the use of stand-by batteries are desired, they must be lead acid or gel type. Connect two (2) 12VDC batteries

connected in series terminals marked [--- BAT +] (battery leads included) (Fig. 1, pg. 2).
Note: When batteries are not used a loss of AC will result in the loss of output voltage.

9. Slide [Power ON/OFF] switch to ON position (Fig. 1a, pg. 2).
10. Connect appropriate signaling notification devices to AC Fail & Low battery supervisory relay outputs

marked [N.C., C, N.O.] (Fig. 1b, pg. 2).

LED Diagnostics:

Red (DC)

Green (AC) Power Supply Status

ON

ON

Normal operating condition.

ON

OFF

Loss of AC, Stand-by battery supplying power.

OFF

ON

No DC output. Short circuit or thermal overload condition.

OFF

OFF

Loss of AC. Discharged or no stand-by battery. No DC output.

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