Type EWD-H-XP2 Elevator Load Weighing Device
How to install the elevator load sensoR EWD-H-XP2
Introduction manual
This system is applicable to all elevators with movable car
platform in need of overload signals. This device is of extremely
high performance-price ratio. This appliance is to overcome the
inherent disadvantage of the mechanical overload switch and to
replace it.
Main characters:
1.Working in a contactless and inductive way. No mechanical
movement itself. Being directly installed in the original place of
overload switch. No necessity of changing the mechanism of elevator
car.
2.Adopting strong inductive magnet, improving the anti-interference
of the system to the utmost.
3.The electrical property is in compliance with the standard of the
International Electro-technical Commission (IEC).
4.Rated relay dynamic open, overload relay -dynamic close and
output-break are easy for customers to use.
5.More accurately positioning, small overall size, easy
installation and adjustment, simple structure and low price.
Working Principle:
This system weighs the elevator car load based on the principle of
the elastic deformation of movable elevator car platform caused by
loading with the HALL sensor measuring the change of displacement,
fulfilling the aim of load weighing.
Adjustment:
1.Please refer to the above figure to install this device with the
connecting support (made by the customer himself) closing the
middle part of the car platform as near as possible.
2.Let the magnet adhesive on the car platform with the marking-face
right facing the induction point of the device.
3.Install and adjust this device so that the magnet on the car
platform aiming at the center point of its upper face. Meanwhile,
assure the end face of this device in parallel with that of the
magnet.
4.When elevator is of rated load, adjust this device up and down to
make the indicator just turn green, red one turn down , at this
time, fasten this device and the adjustment is finished.
5.At the time of overload, indicator of this device keeps green and
red on.
The principle of system wiring:
Do use the Dyn. Open or Dyn. Close at the same time with full load
or overload when system wiring, avoiding cross using.
Wire | Function | Explanation |
Red, black(gray) | System Operating Power | Operating Power AC/DC24V(±10%)/100mA |
White (brown) | blue | Full load relay | Dyn. close contact |
contact capacity:DC/AC 48V/500mA
|
yellow | Dyn. open contact |
green | blue | Overload realy | Dyn. close contact |
yellow | Dyn. open contact |
Attention :
Output wire of this device must not be connected with external
power supply to avoid everlasting damage.
Others:
Accessory: Inductive magnet [20×20×3mm3] 1 piece Fastening Nut
Φ4X20 : 2 sets
If there is any abnormality during adjustment or operation, contact
our company directly.
Attention:
1. The inductive magnet is specially made of rare earth magnet with
strong magnetism for this product. Take special care in the course
of installation. Don’t let it close to the high temperature above
100℃ to avoid demagnetization and our company will not be
responsible for the personal hurt and equipment damage arising from
this.
2. It is suitable for massive purchase.
Website:www.estlift.com/www.est-lift.com
Contact Person:Miss Yolly
E-mail:yollyapple@163.com
sales01@xaest.com
Skype:yollyapple
Wechat:YollyApple
Whatsapp&Mobile:+86 189 9286 2361
Tel:+86-029 8841 6613-808
Fax:+86-029 8556 5714-886
