Elevator load control device УПС-3
UPS-3 load control device is used for controlling the load of the elevator car.
UPS-3 has a well-deserved reputation on the market of Ukraine and CIS countries. In 2013, VEDA Group of Companies produced over 5,000 devices for companies such as:
- Karacharovsk Mechanical Plant OJSC
- Mogilevliftmash OJSC
- other elevator manufacturers.
Areas of use
UPS-3 measures the signals from the load cells and generates three dry contact relay outputs:
- 20 kg load
- 90% of Operating load
- 110% of Operating load (or 100%+75 kg)
and displaying them on the device’s front panel.
UPS-3 is made in the following configurations:
- with 4 floor load cells
- with 3-6 wire rope load cells.
UPS-3 with 4 floor sensor load cells
UPS-3 with floor sensor load cells is used on elevators with stationary floor and the following load capacity, kg:
- 400
- 630
- 1,000.
Specifications of UPS-3 with 4 floor sensor load cells
|
Parameter |
Value |
Limit |
|
Gross rated load, kg |
2,300 |
max |
|
Operating load (OL), kg |
1,000 |
max |
|
Minimum load, kg |
20 |
|
|
Total error, % OL |
± 1 |
|
|
Conversion cycle time, s |
2 |
max |
|
Power consumption, W |
10 |
max |
|
Maximum permissible error, % of net rated load |
0.5 |
max |
|
Ultimate overload for one load cell, % OL |
300 |
min |
|
Power, V/Hz |
~220/50 |
±10%/±1Hz |
|
Working temperature, ˚С |
from -20 to +50 |
range |
|
Level of cage protection under GOST 14254-96: ПВТ-Л load cell ВП-Л device Connection box |
IP67 IP20 IP54 |
|
|
Average full service life, years |
25 |
min |
Elements of UPS-3 with 4 floor sensor load cells
|
Item |
Dimensions, mm |
Weight, kg |
||
|
Length |
Width |
Height |
||
|
ПВТ-Л load cell |
200 |
80 |
50 |
0.72 |
|
ВП-Л device |
135 |
115 |
32 |
0.35 |
|
Connection box |
52 |
26 |
24 |
0.05 |
|
Connection cable |
5,000 |
Ø8 |
0.32 |
|
UPS-3 with wire rope load cells
Depending on the elevator’s load capacity, its design features and the number of wire ropes, the UPS-3 with rope load cells can be calibrated to various load capacities.
Specifications of a single wire rope load cell
|
Parameter |
Value |
Limit |
Notes |
|
Operating load (OL), kg |
1,000 |
max |
|
|
Precision type |
1.0 |
|
|
|
Total error, % OL |
±1 |
max |
|
|
Sensitivity, mV/V |
2 |
-0.5/+0.2 |
|
|
Excitation, V |
from 2.5 to 12 |
range |
|
|
Input / output resistance, Ohm |
400 |
± 4.0 |
|
|
Insulation resistance, MOhm |
1,000 |
min |
DC 100В |
|
Ingress Protection (according to EN 60529) |
IP67 |
not worse than |
|
|
Working temperature, °С |
from -35 to +70 |
range |
|
|
Temperature coefficient, % OL |
0.03 |
|
|
|
Safe overload, % OL |
150 |
min |
|
|
Ultimate overload, % OL |
200 |
min |
|
Operating load of УПС-3 with rope load cells depends on the number of cells used.
Elements of UPS-3 with wire rope load cells
|
Item |
Dimensions, mm |
Weight, kg |
||
|
Length |
Width |
Height |
||
|
Wire rope load cell |
126 |
22 |
60 |
0.30 |
|
ВП-Л device |
135 |
115 |
32 |
0.35 |
|
Connection box |
52 |
26 |
24 |
0.05 |
|
Connection cable |
5,000 |
Ø8 |
0.32 |
|