Appendix
Operating Manual PMCtendo SZ
1002405-EN-04
85
Symbol
Unit
Explanation
N
Bstop
–
Permitted number of braking processes from full speed (n =
3000 rpm) with J
Bstop
(M
L
= 0). The following applies if the values
of n and J
Bstop
differ: N
Bstop
= W
B,Rlim
/ W
B,R/B
.
n
N
rpm
Nominal speed: The speed for which the nominal torque M
N
is
specified
n
m*
rpm
Actual average motor speed
n
mot
rpm
Speed of the motor
n
N
rpm
Nominal speed: The speed for which the nominal torque M
N
is
specified
P
N
kW
Nominal power: the power the motor is able to deliver long term
in S1 mode at the nominal point (tolerance ±5 %)
t
1B
ms
Linking time: time from when the current is turned off until the
nominal braking torque is reached
t
11B
ms
Response delay: time from when the current is turned off until the
torque increases
t
2B
ms
Disengagement time: time from when the current is turned on un-
til the torque begins to drop
t
dec
ms
Stop time
ϑ
amb,max
°C
Maximum surrounding temperature
ϑ
NAT
°C
Nominal response temperature
U
N,B
V
Nominal voltage of brake
W
B,R/B
J
Work done by friction for braking
W
B,Rlim
J
Work done by friction until wear limit is reached
W
B,Rmax/h
J
Maximum permitted work done by friction per hour with individual
braking
x
B,N
mm
Nominal air gap of brake
z
2
mm
Distance of the shaft shoulder to the middle of the output bearing
