Stober EZ, Руководство пользователя

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Symbol Unit Explanation
fB
T
– Temperature operating factor
fB
ZB
– Operating factor for cyclic operation
F
rad
N Permitted radial force on the output
F
rad*
N Actual radial force on the output
F
rad,1*
– F
rad,n*
N Actual radial force in the respective time segment
F
rad100
N Permitted radial force on the output for n
m*
≤ 100 rpm
F
rad300
N Permitted radial force on the output for n
m*
≤ 300 rpm
F
rad,eq*
N Actual equivalent radial force at the output
H m Installation altitude above sea level
i – Gear ratio
i
exact
– Mathematically exact gear ratio
I
0
A Stall current
I
max
A Maximum current
I
N
A Nominal current
I
N,B
A Nominal current of the brake at 20 °C
I
N,F
A Nominal current of the forced ventilation unit
J
1
kgcm
2
Mass moment of inertia relative to the gear unit input
J
Bstop
kgcm
2
Reference mass moment of inertia when braking from full speed: J
Bstop
= J
dyn
×
2
J
dyn
kgcm
2
Mass moment of inertia of a motor in dynamic operation
J
tot
kgm
2
Total mass moment of inertia (based on the motor shaft)
K
EM
V/1000
rpm Voltage constant: peak value of the induced voltage between the phases U,
V, W of the motor at operating temperature at a speed of 1000 rpm
K
H
– Derating factor for installation altitude
K
M0
Nm/A Torque constant: ratio of the stall torque and frictional torque to the stall cur-
rent; K
M0
= (M
0
+ M
R
) / I
0
(tolerance ±10%)
K
M,N
Nm/A Torque constant: ratio of the nominal torque M
N
to the nominal current I
N
;
K
M,N
= M
N
/ I
N
(tolerance ±10%)
K
mot,th
– Factor for determining the thermal limit torque
K
ϑ
– Derating factor for surrounding temperature
l mm Length of the output shaft
L
10
– Nominal bearing service life for a survival probability of 90% in 10
6
rollovers
L
10h
h Bearing service life
L
pA,F
dBA Noise level of the forced ventilation unit in the optimal operating range
L
U-V
mH Winding inductance of a motor between two phases (determined in a reso-
nant circuit)
LW - Load change: A load change (LW) corresponds to an acceleration and a decel-
eration.
m kg Weight (for gear units without lubricant)
M Nm Torque
|M| Nm Absolute value of torque
M
0
Nm Stall torque: The continuous torque the motor is able to deliver at a speed of
10 rpm (tolerance ±5%)
M
1*
– M
4*
Nm Actual torque of the motor in the respective time segment (1 to 4)
M
1acc*
Nm Actual acceleration torque at the gear unit input
M
1Bstat
Nm Static braking torque of the brake in the motor adapter (tol40%,
−20%)
M
1eff*
Nm Actual effective torque at the gear unit input
|M
2
| Nm Absolute value of torque on the output
M
2.0
Nm Stall torque on the gear unit output
M
2.1*
– M
2.4*
Nm Actual torque in the respective time segment (1 to 4)
M
2,n*
Nm Actual torque in the n-th time segment
M
2acc
Nm Maximum permitted acceleration torque on the gear unit output
M
2acc*
Nm Actual acceleration torque on the gear unit output
M
2acc,max
Nm Maximum permitted acceleration torque of a group of geared motors whose
size and nominal torque n
1N
are the same
M
2accHT
Nm Maximum permitted acceleration torque on the gear unit output with re-
duced backlash
15 Appendix 15.1 Symbols in formulas
451