AZ46079 PANASONIC EW, AZ46079 Datasheet - Page 14

• Manufacturer Part Number: AZ46079
• Description: LIMIT SWITCH, ADJUSTABLE ROD, SPDT
• Manufacturer: PANASONIC EW

Specifications of AZ46079

• Actuator Style: Adjustable Rod
• Operating Force Max: 4.41N
• Contact Voltage Ac Max: 250V
• Contact Voltage Dc Max: 125V
• Contact Current Ac Max: 5A
• Contact Current Dc Max: 5A
• Switch Terminals: Connector
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

CAUTIONS FOR USE
Pay attention to the following points
when designing the dog for limit switch
operation.
1. Make the dog faceplate as smooth
as possible.
2. Adjust both the dog angle and the
set arm angle as below, depending on
the operating speed.
3. The depth (h) of the dog effects the
lifespan of the limit switch. Therefore,
set the depth to a maximum of 80% of
the Total Travel (T.T.)
4. The relationship between the speed
of the dog (V = m/s) and the tip angle
( ) is as follows:
1)
When V&0.2m/s, set the arm to per-
pendicular and set the arm rise angle
to between 45° and 90°. If the dog rise
angle is reduced, the maximum tolera-
ble speed is increased.
As a rule,
2) V&0.5m/s
Because the arm jiggle is as a mini-
mum at a comparative speed such as
V&0.5m/s, setting both the dog angle
so that it travels perpendicularly and
the arm angle to 45° is optimum.
8
V&0.2m/s
DESIGN OF OPERATING DOG AND OPERATING SPEED
60 to 90°
45°
60°
V
V
= 45° is optimum.
o
= 45 to 90
= 45
= 45
Vmax (m/s)
0.05
0.2
0.1
h
F
h
3) 0.5m/s ! V&2m/s
The maximum tolerable speed can be
extended by further reducing the dog
rise angle from 45° when 0.5m/s !
V&2m/s. It is necessary to set the arm
so that the dog’s cutting surfaces are
always parallel ( o = 90°– )
4) Overriding the dog (V&0.2m/s)
If overriding the dog, set the arm per-
pendicularly, so that
angle is reduced, the tolerable speed
is increased.
60 to 90°
40°
35°
30°
25°
45°
60°
V
o
=45°. If the dog
Vmax (m/s)
Vmax (m/s)
F
0.05
0.7
0.9
1.3
2.0
0.2
0.1
h
h
5) Roller plunger type
Even if overriding the dog, set the for-
wards and rearwards motion exactly
the same, and avoid any settings that
make the actuator accelerate rapidly
from the dog.
5. Operation speed
1) When the operation (acting and
reverting) speed is exceedingly slow,
switching of the contacts will become
unstable and this could cause prob-
lems such as failure to make contact
and welding. As a guide, the speed
should be at least 1mm/s.
2) When the operation (acting and
reverting) speed is exceedingly fast,
be careful because the violent motion
could cause breakage and with
increased frequency, contact switching
will not be able to keep up. As a guide,
the switching frequency should be
within 20 times per minute.
20°
30°
Vmax (m/s)
0.25
0.5
(0.5 to 0.7) T.T.
(0.6 to 0.8) T.T.
h
h