ZAlift - 20230706 - calculation ZAL-185867
ZIEHL-ABEGG SE
Künzelsau, Germany
Elevator calculation acc. EN81-20/50 bad 24.01.2024
Elevator data
Nominal load Q kg 630
Car weight F kg 800(696 - 1173kg)
Counterweight G kg 1115(50%)
Travelling speed v (V_3=) m/s 1,00
Travel distance H m 30,0
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 WOLF PAWO F7
Number of ropes z 4
Rope diameter ds mm 8
Rope weight s kg 30(0,258 kg/m)
Compensation rope weight su kg 0
Car cable weight HK kg 15
Rope span weight R kg 0
Min. rope breaking load B N 40600
Traction sheave diameter Dtr mm 320
Sheave width mm 110number of grooves (6)
Groove distance mm 17,0Standard
Angle of wrap minimum min. deg 180
Undercutangle deg 95
Undercutwidth b mm 5,90
Groove angle deg 30
Sheave profile: circular undercut groove
Traction, rope pressure, rope safety
Traction empty,on top, accelerating (1,18)
1,7005 <= 1,8399
Traction 150% nominal load, below, not moving
1,6206 <= 1,8399
Rope pressure k < permissible rope pressure
7,93 < 9,00 N/mm²
Conditions according to EN81:
Load 125% 1,4793 <= 1,8582 (1)
Emergency stop 1,6033 <= 1,6759 (4)
with deceleration [m/s²] 0,500
Blocked car 13,162 > 3,4528 (4)
Real safety factor > Minimum safety factor for ropes (dfactor = 1,00)
22,19 > 12
Pulleys >= 320 mm, pulleys NPR = 0 NPS = 2
Rope safety nue = 22,2 > 17,8 (minSF)
Rope certification EN81
Traction conditions are fulfilled.
Rope safety conditions are fulfilled.


ZAlift - 20230706 - Machine dimensioning ZAL-185867
Mechanical drive data
Machine manufactured by Ziehl-Abegg
Machine type SM 200.23D Gearless synchronous
Machine version ZAtop *
Traction sheave mm 320 /110/17,0/6x8/U95
Permissible load output torque Nm 358 (max. 410)
Real statical axle load kg 1310 (max. 2850)
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Brake data
brake Mayr ROBA-twinstop RTW350, 2x410 Nm, EU-BD 845/3
Dual circuit disc brake, DC supply necessary
(296 Nm, 0,53 m/s², 1 m, 6402 J, 204 W)
207 V brake, with hand release, microswitch
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Machine load data in the installation
Typical motor operating power kW 2,8
Typ. operating current 13,2 A, Start. Current 19,7 A at acceleration 0,60 m/s²
Start. Current 24,0 A at acceleration 1 m/s²
Start. Current 20,8 A at acceleration 0,7 m/s²
Average power losses 0,66 kW = 2376,8 kJ/h
Output speed rpm 119
Load torque Nm 358,6(eff. 226,2)
Inertia of installation kgm² 17,08
240 Starts per hour , 40 % required duty cycle at elevator operation
Max. static load pulleys 10939 N, pulley speed 1,00 m/s
Selected ZIEHL-ABEGG motor
Motor type SM200.23D-20 - gearless
Nameplate data(Operating data)
Rated voltage V 360
Rated frequency Hz 20 ( 19,9)
Rated torque Nm 380 ( 358,6)
Rated speed rpm 120 ( 119,4)
Rated output power kW 4,8( 4,5)
Rated current A 14 ( 13,2)
Maximum torque Nm 570 ( 570 )
Current at maximum torque A 24 ( 24 )
Inertia of motor kgm² 0,180
Possible accelleration m/s² 0,98
(MKmax=240,0 Nm)
Without cooling [PTC] (63)
Dimension sheet A-M-6760 / A-M-6778, Motor construction type IMB3
Motor with encoder ECN 1313-2048Endat
Selected frequency inverter
Inverter ZAdynpro017, Rated inverter current 17 A
mains current 9,5 A, 400 V, 6,3 kW, Max. 0,98 m/s², F_amax 1,59 (570 Nm)
Radio interference filter, integrated ; Line reactor, separate ND017
Braking resistance BR17-3


ZAlift - 20230706 - ZAL-185867
Elevator data
Elevator630kg-1,00m/s-2:1-30m
Machine type SM 200.23D
Traction sheave 320/110/17,0/6x8/U95
InertiaTraction sheave 0,727 kgm²
Brake data
Mayr ROBA-twinstop RTW350, 820 Nm, EU-BD 845/3, 35 ms, 50 ms, 95 ms
-207 V brake, with hand release, microswitch
Calculation of unintended movement
Values of elevator controller
Detection distance 0,050 m
Dead time 50 ms
V Detector 0,000 m/s
Without short-circuit motor braking
a[m/s²] | s[m] | v[m/s] | t[s] |
1:4,90 | 0,05 | 0,70 | 0,14 |
2:4,90 | 0,09 | 0,94 | 0,19 |
3:1,63 | 0,13 | 1,00 | 0,23 |
4:0,81 | 0,15 | 1,02 | 0,25 |
5:-0,36 | 0,16 | 1,02 | 0,26 |
6:-0,72 | 0,87 | 0,00 | 1,67 |
Stopping distance (without traction influence) 0,334 m, empty up
Max. stopping distance (traction depending)0,870 m, empty up
Max. stopping distance (traction depending) 0,473 m, full down
Max. stopping distance (inverter off, empty) 0,273 m, empty up
Max. test stopping distance(v= 0,150m/s) 0,105 m, empty up
Max. test stopping distance(v= 0,150m/s) 0,095 m, full down
Max. test stopping distance(a= 2,000 m/s²) 0,326 m, empty up
Max. test stopping distance(a= 2,000 m/s²) 0,259 m, full down
At short-circuit motor braking
a[m/s²] | s[m] | v[m/s] | t[s] |
1:4,90 | 0,05 | 0,70 | 0,14 |
2:4,90 | 0,09 | 0,94 | 0,19 |
3:0,71 | 0,12 | 0,97 | 0,23 |
4:0,36 | 0,14 | 0,98 | 0,25 |
5:-0,37 | 0,15 | 0,97 | 0,26 |
6:-0,74 | 0,79 | 0,00 | 1,57 |
Short-circuit motor brake torque MK2: 160,1 ,MK3: 153,6 Nm
Max. stopping distance (traction depending) 0,790 m, empty up
Max. stopping distance (traction depending) 0,437 m, full down
Max. stopping distance (inverter off, empty) 0,232 m, empty up
Max. test stopping distance(v= 0,150m/s) 0,092 m, empty up
Max. test stopping distance(v= 0,150m/s) 0,087 m, full down
Max. test stopping distance(a= 2,000 m/s²) 0,280 m, empty up
Max. test stopping distance(a= 2,000 m/s²) 0,233 m, full down
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