Pilz PMCtendo SZ Series Operating Manual page 84

Appendix
10.2 Formula symbols
Symbol
ΔJ
ΔJ
B
Δm
Δm
B
Δϑ
ED
10
F
ax100
F
rad
F
rad100
H
I
0
I
N
I
N,B
J
J
Bstop
J
tot
K
EM
K
H
K
M,N
K
ϑ
M
0
M
Bdyn
M
Bstat
M
eff*
M
k
M
k100
M
L
M
N
M
Nred
n
Operating Manual PMCtendo SZ
1002405-EN-04
Unit Explanation
kgm Additive mass moment of inertia of with increased mass moment
2
of inertia
kgm Additive mass moment of inertia of a motor with brake
2
kg Additive weight of a motor with increased mass moment of inertia
kg Additive weight of a motor with brake
K Temperature difference
% Duty cycle based on 10 minutes
N Permitted axial force on the output for n
N Permitted radial force on the output
N Permitted radial force on the output for n
m Installation altitude above sea level
A Stall current: RMS value of the line-to-line current when the stall
torque M is generated (tolerance ±5%)
0
A Nominal current: RMS value of the line-to-line current when nom-
inal torque M
A Nominal current of the brake at 20 °C
kgm 2 Mass moment of inertia
kgm Reference mass moment of inertia when braking from full speed:
2
J = J × 2
Bstop
kgm Total mass moment of inertia (based on the motor shaft)
2
V/1000 Voltage constant: Peak value of the induced motor voltage at a
rpm speed of 1000 rpm and a winding temperature Δϑ = 100 K (toler-
ance ±10%)
– Derating factor for installation altitude
Nm/A Torque constant: ratio of the nominal torque M
current I ; K
N
– Derating factor for surrounding temperature
Nm Stall torque: The continuous torque the motor is able to deliver at
a speed of 10 rpm (tolerance ±5%)
Nm Dynamic braking torque at 100 °C (Tolerance +40%, −20%)
Nm Static braking torque at 100 °C (Tolerance +40%, −20%)
Nm Actual effective torque of the motor
Nm Permitted breakdown torque on the output
Nm Permitted breakdown torque on the output for n
Nm Load torque
Nm Nominal torque: the maximum torque of a motor in S1 mode at
nominal speed n
Nm Reduced nominal torque of the motor
rpm Speed
is generated at the nominal point (tolerance ±5%)
N
= M / I (tolerance ±10%)
M,N N N
(tolerance ±5%)
N
≤ 100 rpm
m*
≤ 100 rpm
m*
to the nominal
N
≤ 100 rpm
m*
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