Installation Environment; Operating Life; Overcurrent Protection - Omron S8VS-01505 Manual

• Use the following material for the wires to be connected to the
S8VS to prevent smoking or ignition caused by abnormal loads.
Recommended Wire Type
15-W and 30-W Models
Model
S8VS-03005
Other models
60-W, 90-W, 120-W, 180-W, 240-W, and 480-W Models
Model
S8VS-06024@
S8VS-
09024@@@@
S8VS-
AWG14 to 20
12024@@@
(Cross section:
0.517 to
2.081 mm
S8VS-
18024@@@
S8VS-
24024@@@
AWG 14 to 16
(Cross section:
S8VS-48024@
1,309 to
2,081 mm
• Strip I/O wires for 11 mm when using a screwless terminal block.
* The rated current for output terminals is 10 A per terminal. Be sure
to use multiple terminals simultaneously for current that exceeds
the terminal rating. When applying a current of 10 A or more, use at
least two terminals each for the positive and negative wires.

Installation Environment

• Do not use the Power Supply in locations subject to shocks or
vibrations. In particular, install the Power Supply as far away as
possible from contactors or other devices that are a vibration
source.
• Install the Power Supply well away from any sources of strong,
high-frequency noise and surge.

Operating Life

• The life of a Power Supply is determined by the life of the
electrolytic capacitors used inside. Here, Arrhenius Law applies,
i.e., the life will be cut in half for each rise of 10°C or the life will be
doubled for each drop of 10°C. The life of the Power Supply can
thus be increased by reducing its internal temperature.
Ambient Operating and Storage Environments
• Store the Power Supply at a temperature of −25 to 65°C and a
humidity of 25% to 90%.
• Do not use the Power Supply in areas outside the derating curve
otherwise, internal parts may occasionally deteriorate or be
damaged.
• Use the Power Supply at a humidity of 25% to 85%.
• Do not use the Power Supply in locations subject to direct sunlight.
• Do not use locations where liquids, foreign matter, or corrosive
gases may enter the interior of Products.
S8VS-@@@24A@@ Models only
Satisfy the following conditions when storing the Power Supply for
long periods of time to maintain its remaining service life function.
When storing for more than three months, store within an ambient
temperature range of −25 to +30°C and the humidity range of 25% to
70%.
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Stranded wire Solid wire
AWG18 to 14 AWG18 to 16
(0.9 to 2.0 mm 2 ) (0.9 to 1.1 mm
AWG20 to 14 AWG20 to 16
(0.5 to 2.0 mm 2 ) (0.5 to 1.1 mm
Recommended wire size
Input Output Alarm output
terminals terminals
AWG14 to 20 ---
(Cross section:
0.517 to
2.081 mm 2 )
AWG14 to 18
(Cross section:
0.823 to
AWG18 to 28
2.081 mm 2 )
(Cross
2 )
AWG14 to 16
section: 0.081
(Cross section:
to 0.823 mm
1.309 to
(Wires to be
2.081 mm 2 )
stripped:
9 to 10 mm)
AWG14
(Cross section:
2.081 mm 2 )
2 )
Periodic Check for Models with Indication
Monitor Except 60-W Models
It may take from several years to more than 10 years under general
operating conditions for the power supply to output the maintenance
forecast monitor alarm (S8VS-@@@24A@@). The total run time
monitor (S8VS-@@@24B@@/S8VS-@@@24BE@) may be a similar
number of years as the maintenance forecast monitor according to
2 )
some settings. During operation over an extended period of time,
periodically check if the maintenance forecast monitor output (Yrs) or
total run time monitor output (kh) is correctly functioning by the
2 )
following procedure.
1. Select the operation mode.
2. Check that the output (Yrs/kh) is turned ON (with continuity).
3. In the operation mode, press and hold the Down Key D (10) and
the Mode Key M (8) simultaneously for at least three seconds.
terminals
The main display (6) changes to "
An inactive output (Yrs/kh) (no continuity) in the "
indicates the correct function.
4. Release keys to return to the regular state.
Note: DC output stays ON during the periodical check.
60-, 90-, 120-,
180-, 240-W
Models
2 )
480-W Models

Overcurrent Protection

• Internal parts may possibly deteriorate or be damaged if a
short-circuited or overcurrent state continues during operation.
• Internal parts may possibly deteriorate or be damaged if the Power
Supply is used for applications with frequent inrush current or
overloading at the load end. Do not use the Power Supply for such
applications.
• The DC ON indicator (green) flashes if the overload protection
function operates.
a02 ."
1
6
10
12
(Yrs/kh)
3
11 13
(DC LOW) (COMMON)
1 2
9
10
16
15
12 11
14 13
(DC LOW)
(Yrs/kh)
S8VS
a02 " indication
2
7
8
9
4
5
6
7
8
4
5
3
33