11. Pay attention to leakage current.
<2-wire type>
Current (leakage current) flows to the load to operate the internal circuit even when in the OFF state.
Operating current of load (OFF condition)
>
Leakage current
If the criteria given in the above formula are not met, it will not reset correctly (stays ON).Use a 3-wire
switch if this specification will not be satisfied.
Moreover, leakage current flow to the load will be
“n” times larger when “n” auto switches are
connected in parallel.
12. Output operation of the solid state auto switch is not stable for 50 [ms] after powered ON.
In the output operation immediately after powered ON or AND connection operation, the input device
(PCL or relay, etc.) may judge the ON position as OFF output or the OFF position as ON output. So,
please make the setting on the equipment so that the input judgement signal is set disabled for 50 [ms]
immediately after powered ON or AND connection. When using SMC’s AHC system (Auto Hand
Changing System) Series MA, please also make this setting.
Mounting / Adjustment
1. Do not drop or bump.
Do not drop, bump or apply excessive impacts (300m/s
2
or more for reed auto switches and 1000m/s
2
or
more for solid state auto switches) while handling. Although the body of the auto switch may not be
damaged, the inside of the auto switch could be damaged and cause malfunction.
2. Observe the proper tightening torque for mounting an auto switch.
When an auto switch is tightened beyond the range of tightening torque, auto switch mounting screws,
auto switch mounting brackets or auto switch may be damaged.
On the other hand, tightening below the range of tightening torque may allow the auto switch to slip out
of position.
3. Do not carry a rotary table by the auto switch lead wires.
This may cause disconnection of the lead wire or the internal element to break.
4. Do not use screws other than the set screws installed on the auto switch body to secure the
auto switch.
If using other screws, auto switch may be damaged.
5. Mount an auto switch at the center of the operating range.
In the case of 2-color display auto switch, mount it at the center of the green LED illuminating range.
Adjust the mounting position of the auto switch so that the piston stops at the center of the operating
range. (The mounting position shown in the catalog indicates the optimum position at stroke end.)
If mounted at the end of the operating range (around the borderline of ON and OFF), operation will be
unstable depending of the operating environment. Also there are some rotary tables with individual
setting methods for auto switches. If so, mount it in accordance with the indicated method.
-12-
Even if 2-color indication solid state auto switches are fixed at a proper operating
range (the green light lights up), the operation may become unstable depending
on the installation environment or magnetic field disturbance.
Magnetic body, external magnetic field, proximal installation of rotary tables
with built-in magnet and actuators, temperature change, other factors for
magnetic force fluctuation during operation, etc.
Warning
2020-10-13 10:36
DI987004
Содержание CRQ2 Series
Страница 27: ...Table for calculation of Inertia moment 25...
