INTORQ BFK455, Руководство по эксплуатации

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Preface and general information 1
i
j
| BA 14.0196 | 05/2013
7
1.4 Abbreviations used
Abbreviation Unit Name
I A Current
I
H
A Holding current at 20 °C and holding voltage
I
L
A Release current at 20 °C and release voltage
I
N
A Rated current at 20 °C and rated voltage
M
A
Nm Tightening torque of the fixing screws
M
K
Nm Rated torque of brake, rated value at a relative speed of 100 rpm
n
max
rpm Maximum speed during the slipping time t3
P
H
W Coil power during holding, through normal excitation and 20 °C
P
L
W Coil power during release, through normal excitation and 20 °C
P
N
W Rated coil power at rated voltage and 20 °C
Q J Heat/energy
Q
E
J Max. permissible friction work per switching cycle, thermal rating of
the brake
Q
R
J Braking energy, friction work
Q
Smax
J Max. permissible friction work during cyclic switching, depending on
the operating frequency
R
N
Ohm Rated coil resistance at 20 °C
S
h
1/h Operating frequency, the number of repeated operations per unit
time
S
hue
1/h Transitional operating frequency, thermal rating of the brake
S
hmax
1/h Maximum permissible operating frequency, depending on the
friction work per operation
s
L
mm Air gap, movement of armature plate by switching the brake
s
LN
mm Rated air gap
s
Lmin
mm Minimum air gap
s
Lmax
mm Maximum air gap
t
1
ms Engagement time, the total of the reaction delay and torque rise
time t
1
= t
11
+ t
12
t
2
ms Disengagement time, time from switching the stator until the torque
has reduced to 0.1 M
K
t
11
ms Slipping time to standstill (after t
11
)
t
11
ms Delay time when connecting, time from disconnecting the
voltage until the torque begins to rise
t
12
ms Rise time of braking torque, time from beginning of rise of torque
until braking torque is reached
t
ue
S Overexcitation time
U V Voltage
U
H
V DC Holding voltage by change of voltage
U
L
V DC Release voltage by change of voltage
U
N
V DC Rated coil voltage for brakes which require automatic voltage
changing, the rated coil voltage U
rated
is the same as the release
voltage U
L