Appendix
Operating Manual PMCtendo SZ
1002405-EN-04
84
10.2
Formula symbols
Symbol
Unit
Explanation
ΔJ
kgm
2
Additive mass moment of inertia of with increased mass moment
of inertia
ΔJ
B
kgm
2
Additive mass moment of inertia of a motor with brake
Δm
kg
Additive weight of a motor with increased mass moment of inertia
Δm
B
kg
Additive weight of a motor with brake
Δϑ
K
Temperature difference
ED
10
%
Duty cycle based on 10 minutes
F
ax100
N
Permitted axial force on the output for n
m*
≤ 100 rpm
F
rad
N
Permitted radial force on the output
F
rad100
N
Permitted radial force on the output for n
m*
≤ 100 rpm
H
m
Installation altitude above sea level
I
0
A
Stall current: RMS value of the line-to-line current when the stall
torque M
0
is generated (tolerance ±5%)
I
N
A
Nominal current: RMS value of the line-to-line current when nom-
inal torque M
N
is generated at the nominal point (tolerance ±5%)
I
N,B
A
Nominal current of the brake at 20 °C
J
kgm
2
Mass moment of inertia
J
Bstop
kgm
2
Reference mass moment of inertia when braking from full speed:
J
Bstop
= J × 2
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 motor voltage at a
speed of 1000 rpm and a winding temperature Δϑ = 100 K (toler-
ance ±10%)
K
H
–
Derating factor for installation altitude
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
ϑ
–
Derating factor for surrounding temperature
M
0
Nm
Stall torque: The continuous torque the motor is able to deliver at
a speed of 10 rpm (tolerance ±5%)
M
Bdyn
Nm
Dynamic braking torque at 100 °C (Tol40%, −20%)
M
Bstat
Nm
Static braking torque at 100 °C (Tol40%, −20%)
M
eff*
Nm
Actual effective torque of the motor
M
k
Nm
Permitted breakdown torque on the output
M
k100
Nm
Permitted breakdown torque on the output for n
m*
≤ 100 rpm
M
L
Nm
Load torque
M
N
Nm
Nominal torque: the maximum torque of a motor in S1 mode at
nominal speed n
N
(tolerance ±5%)
M
Nred
Nm
Reduced nominal torque of the motor
n
rpm
Speed
Содержание PMCtendo SZ Series
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