Omron S8VS, Manual

Page: 34 / 38

S8VS
34
Alarm Output for Models with Indication Monitor
Except 60-W and BE Models
When using the alarm output, sufficiently consider the maximum
ratings, residual voltage, and leakage current.
Transistor output:
Sinking for S8VS-24A
@
/
@@@
24B
@
models
Sourcing for S8VS- @@@ 24AP @ / @@@ 24BP @
models
Sinking/Sourcing for S8VS-48024A/B models
30 VDC max., 50 mA max.
ON residually voltage:2 V max.
OFF leakage current: 0.1 mA max.
Charging a Battery
If you connect a battery as the load, install overcurrent control and
overvoltage protection circuits.
Output Voltage Adjuster (V.ADJ)
•
The output voltage adjuster (V.ADJ) may possibly be damaged if it
is turned with unnecessary force. Do not turn the adjuster with
excessive force.
•
After completing output voltage adjustment, be sure that the output
capacity or output current does not exceed the rated output
capacity or rated output current.
15-W, 30-W Models
•
If the output voltage is set to a value less than
−
10%, the
undervoltage alarm function may operate.
60-W, 90-W, 120-W, 180-W, 240-W, and 480-W Models
•
If the detection voltage of the undervoltage alarm function is at the
factory setting and the output voltage is set to a value of 20 V or
less, the undervoltage alarm function may operate.
DIN Rail Mounting
To mount the Block on a DIN Rail, hook portion (A) of the Block onto
the rail and press the Block in direction (B).
To dismount the Block, pull down portion (C) with a flat-blade
screwdriver and pull out the Block.
Series Operation
(24-V Model)
Two power supplies can be connected in series.
Note: 1. The diode is connected as shown in the figure. If the load is
short-circuited, a reverse voltage will be generated inside
the Power Supply. If this occurs the Power Supply may
possibly deteriorate or be damaged. Always connect a
diode as shown in the figure.
Select a diode having the following ratings.
2. Although Products having different specifications can be
connected in series, the current flowing through the load
must not exceed the smaller rated output current.
3. Serial operation is not possible with 5-V and 12-V models.
Making Positive/Negative Outputs
•
The outputs are floating outputs (i.e., the primary circuits and
secondary circuits are separated). You can therefore make
positive and negative outputs by using two Power Supplies.
If positive and negative outputs are used, connect Power Supplies
of the same series as in the following figure. (Combinations with
different output capacities or output voltages can be made.
However, use the lower of the two maximum rated output currents
as the current to the loads.)
•
Depending on the model, internal circuits may be damaged due to
startup failure when the power is turned ON if loads such as a
servomotor or operational amplifier may operate in series.
Therefore, connect bypass diodes (D1, D2) as shown in the
following figure.
•
Use the following information as a guide to the diode type, dialectic
strength, and current.
(B)
(A)
(C)
30 mm min.
Track stopper
Type Schottky Barrier diode
Dielectric strength (V
RRM
) Twice the rated output voltage or above
Forward current (I
F
) Twice the rated output current or above
•
Type: Schottky barrier diode
•
Dielectric strength (V
RRM
): Twice the rated Power Supply output
voltage or higher
•
Forward current (I
F
): Twice the rated Power Supply output
current or higher
+ V
− V
+ V
−
V
Correct
AC (L)
AC ( N )
AC (L)
AC ( N )
I N PUT
+ V
+ V
0 V
−
V
−
V
I N PUT
+ V
−
V
Load
Load
I N PUT
+ V
D
2
D
1
− V
I N PUT
+ V
− V
Load
Load
Load