ZAlift - 20231212 - calculation ZLW-24697
ZIEHL-ABEGG SE
Künzelsau, Germany
Elevator calculation acc. EN81-20/50 05/03/2024
Elevator data
Nominal load Q 2000 kg
Car weight F 1850 kg(1762 - 2665kg)
Counterweight G 2850 kg(50%)
Travelling speed v (V_3=) 1.60 m/s
Travel distance H 60.0 m
Suspension/roping is 2 : 1
Machine at the top, above , without deflection pulley
Shaft efficiency etaS 82 %
Number of pulleys (ball bearing) 3
Type of rope DRAKO 250 T
Number of ropes z 10
Rope diameter ds 8 mm
Rope weight s 163 kg(0.273 kg/m)
Compensation rope weight su 328 kg
Car cable weight HK 15 kg
Rope span weight R 0 kg
Min. rope breaking load B 43300 N
Traction sheave diameter Dtr 320 mm
Sheave width 150 mmnumber of grooves (10)
Groove distance 14.0 mmMinimum distance
Angle of wrap minimum min. deg 180 °
V-groove angle50 °
Sheave profile: V-groove with min. 50 HRC
Traction, rope pressure, rope safety
Traction empty,on top, accelerating
1.9275 <= 1.9523
Traction 150% nominal load, below, not moving
1.6294 <= 1.9523
Rope pressure k < permissible rope pressure
1.90 < 2.00 N/mm²
Conditions according to EN81:
Load 125% 1.4768 <= 2.1030
Emergency stop 1.6291 <= 1.7562
with deceleration [m/s²] 0.500
Blocked car 06.693 > 4.4226
Real safety factor > Minimum safety factor for ropes (dfactor = 1.00)
21.06 > 12
Rope safety factor according to EN81: (0)
Pulleys >= 320 mm, pulleys NPR = 0 NPS = 2
Rope safety nue = 21.1 > 16.4 (minSF)
Rope certification EN81
Traction conditions are fulfilled.
Rope safety conditions are fulfilled.


ZAlift - 20231212 - Machine dimensioning ZLW-24697
Mechanical drive data
Machine manufactured by Ziehl-Abegg
Machine type SM 210.70B
Machine version ZAtopGearless synchronous
Traction sheave 320/150/14.0/10x8/HK50
Permissible load output torque 965 Nm (max. 1150)
Real statical axle load 3685 kg (max. 4500)
Rope pull admissible only in direction of motor foot!
Brake data
brake Mayr ROBA-twinstop RTW1000, 2x1200 Nm, EU-BD 1014/1
Dual circuit disc brake, DC supply necessary
(797 Nm, 0.65 m/s², 3.61 m, 39113 J, 316 W)
207 V brake, with hand release, microswitch
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Machine load data in the installation
Typical motor operating power 15.6 kW
Typ. operating current 49.3 A, Start. Current 81.4 A at acceleration 0.8 m/s²
Start. Current 89.6 A at acceleration1m/s²
Start. Current 77.3 A at acceleration 0.7 m/s²
Average power losses 2.84 kW
Output speed 191 rpm
Load torque 965.8 Nm(eff. 777.7)
Inertia of installation 49.16 kgm²
240 Starts per hour , 50 % required duty cycle at elevator operation
Max. static load pulleys 31173 N, pulley speed 1.60 m/s
Selected ZIEHL-ABEGG motor
Motor type SM210.70B-20 - gearless
Nameplate data(Operating data)
Rated voltage 360 V
Rated frequency 32 Hz(31.8)
Rated torque 1000 Nm(965)
Rated speed 192 rpm (191)
Rated output power 20.1 kW(19.3)
Rated current 51 A(49.3)
Maximum torque 1700 Nm(1700)
Current at maximum torque 97 A(97.0)
Inertia of motor 0.550 kgm²
Possible accelleration 1.18 m/s²
(MKmax=750 Nm)
Cooling FB020-4EW.W6.A5 (1~230V_30W) [PTC] (66)
Dimension sheet A-M-6706, Motor construction type IMB3
Motor with encoder ECN 1313-2048Endat
Inverter
Control device ZAdyn 4CS050, Rated inverter current 50 A
mains current 34.8 A, 400 V, 22.9 kW, Max. 1.01 m/s²
Radio interference filter, integrated ; Line reactor, integrated
Braking resistance BR100-3A