SIEMENS
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Siemens D 83.1 · 2016
1
Introduction
General technical specifications
Brakes and brake motors
■
Overview
(continued)
Brake with manual release
The brake can also be supplied with manual release as an
option. When the manual release lever is pulled under zero
current conditions, the armature disk is pulled by means of the
tension bolts against the pressure springs in the solenoid
assembly. An air gap is created between the rotor and the
armature disk.
The brake is mechanically released and the shaft can rotate
easily. The pressure spring on the tension bolts holds the manual
release lever in its normal position during operation.
The air gap "s" is the distance between the armature disk and the
disk. The dimension "s" must be taken into consideration when
the manual release is installed.
Important:
Even with reduced characteristic torque, the release distance
must be adjusted when the maximum air gap s
Gap max.
is reached.
Noise behavior
During operation, the noise response of the brake motor is hardly
affected by the brake. The measuring-surface sound pressure
level can therefore be obtained from the noise value tables for
1PS0, 1PS4, 1PS5 and 1MD5 motors (without brakes) in the
section “Measuring-surface sound pressure level.”
When the brake is released or engaged, however,
sudden noises arise. These are recorded by means of the
A-weighted emission sound pressure level (impulse sound
pressure level) according to EN ISO 1680 – see Table.
Armature disk
Armature disk
Pressure spring
s
Gap
h
1 max
s
s
Gap
Manual release
Disk
Sleeve screw
Cover ring
Adjustment ring
Solenoid assembly
Adapter flange
Shaft
Toothed hub
Rotor
G_D083_EN_00043
Brake size
Air gap
s
Gap
s
+0.1
mm
mm
12
0.3
1.5
Operating brake
(s
Gap max.
ca. 2.5
s
Gap
)
14
16
18
0.4
2
Holding brake with
emergency stop function
(s
Gap max.
approx.
1.5
s
Gap
)
20
25
0.5
2.5
Frame size
A-weighted emission sound pressure level
(guide values)
L
p
AF
dB (A)
132
76
160
80
180 … 250
83
© Siemens AG 2016