Altronix SMP7 Power Supply Charger Installation Guide

SMP7 Power Supply Charger
Installation Guide

Overview:

Altronix SMP7 power supply/charger converts a low voltage AC input into 12VDC or 24VDC output with a 6A continuous supply current.

Specifications:

Input:

• Input 28VAC
  (Voltage Output/Transformer Selection Table).

Output:

• 12VDC or 24VDC selectable output.
• 6A supply current.
• The output fuse is rated 15A/32V.
• Filtered and electronically regulated outputs.
• Short circuit and thermal overload protection.

Battery Backup:

• Built-in charger for sealed lead acid or gel-type batteries.
• Maximum charge current 0.7A.
• Zero voltage drop when switching over to battery backup.

Indicators:

• AC input and DC output LED indicators.
  Board Dimensions (W x L x H approximate):
  7” x 4.25” x 1.25”
  (177.8mm x 107.9mm x 31.75mm).

Voltage Output/Transformer Selection Table:

Output VDC| Switch Position| Max. Load DC| Transformer Requirements(Recommended Altronix Part #’s)
---|---|---|---
12VDC| SW1 ON| 6A| 24VAC or 28VAC / 175VA (T2428175)
24VDC| SW1 OFF| 6A| 24VAC or 28VAC / 175VA (T2428175)

Installation Instructions:

SMP7 should be installed in accordance with The National Electrical Code and all applicable Local Regulations.

1. Mount SMP7 in the desired location/enclosure (mounting hardware included).

2. Set SMP7 to the desired DC output voltage by setting the SW1 switch (Fig. 1a, pg. 2) to the appropriate position (Voltage Output/Transformer Selection Table).
   Adjust output voltage by using the trimpot on the power supply board (Fig. 1a, pg. 2) prior to connecting devices.

3. Connect the proper transformer to terminals marked [AC] (Voltage Output/Transformer Selection Table).
   Use 18 AWG or larger for all power connections (Battery, DC output).
   Keep power-limited wiring separate from non-power-limited wiring (115VAC / 60Hz Input, Battery Wires). Minimum 0.25” spacing must be provided.
   CAUTION: Do not touch exposed metal parts. Shut branch circuit power before installing or servicing equipment. There are no user-serviceable parts inside.
   Refer installation and servicing to qualified service personnel.

4. Measure output voltage before connecting devices. This helps avoid potential damage.

5. Connect devices to be powered to terminals marked [– DC +].

6. When the use of stand-by batteries is desired, they must be lead acid or gel type. Connect the battery to the terminals marked [– BAT +] on the board (battery leads included).  Use two (2) 12VDC batteries connected in series for 24VDC operation.
   Note: When batteries are not used, a loss of AC will result in the loss of output voltage.

LED Diagnostics:

Terminal Identification:

Altronix is not responsible for any typographical errors.
140 58th Street, Brooklyn, New York 11220 USA
phone: 718-567-8181
fax: 718-567-9056
website: www.altronix.com
e-mail: [email protected]
Lifetime Warranty
IISMP7 – Rev. 110606
H17U

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