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Installation and Operational Instructions (Brief Instructions) for
®
for ROBA
-topstop
Sizes 120 – 200
Option: Release Monitoring with Proximity
Sensor
(only possible on designs with terminal box (10))
7
26
27
25
Fig. 3
®
®
ROBA
-topstop
brakes can also be delivered with
manufacturer-side adjusted release monitoring (see Fig. 3).
A proximity sensor (Item 25) emits a signal for every brake
condition change:
"brake open" or "brake closed".
The customer is responsible for a signal evaluation of both
conditions.
From the point at which the brake is energised, a time span of
three times the separation time must pass before the
microswitch signal on the release monitoring is evaluated.
Technical Data
Operating voltage:
Residual ripple content:
DC rated operating current:
No-load current I
:
0
Residual current:
Rated insulation voltage:
Short circuit protection
Line voltage drop at I
:
e
Wire breakage protection / reverse voltage protection:
Output function:
Switching frequency:
Proximity Sensor (25) Wiring Diagram:
BN
BK
BU
NO
Function
When the magnetic coil is energised in the coil carrier (6.1), the
armature disk (6.2) is attracted to the coil carrier (6.1), a
proximity sensor (25) emits a signal and the brake is released.
Chr. Mayr GmbH + Co. KG
Eichenstraße 1
D-87665 Mauerstetten
Germany
®
Type 899.3 _ 2. _ _
for STÖBER-brake modules MB2_, MB3_, MB4_
28
6.2
6.1
10
10... 30 VDC
≤ 10 % U
ss
≤ 150 mA
≤ 15 mA
≤ 0,1 mA
≤ 0,5 kV
yes / synchronising
≤ 1,8 V
yes /
completely
3-wire, NO contact, PNP
≤ 2 kHz
NO
Tel.: 08341/804-0
Fax: 08341/804-421
http://www.mayr.de
E-mail:
ID 442358.00 Issue 28.03.2011
Electrical Connection and Wiring
DC current is necessary for operation of the brake.
The coil voltage is indicated on the Type tag and is designed
according to the DIN IEC 60038 (± 10 % tolerance). Operation
can take place via alternating voltage in connection with a
rectifier or with another suitable DC power supply (standard
voltage 24 VDC). Brakes Type 899.3 _ _ . _ 2 must only be
operated with overexcitation (e.g. with a ROBA
-multiswitch fast acting rectifier or phase demodulator).
connection possibilities can vary dependent on the brake
equipment. Please follow the exact connections according to the
Wiring Diagram.
The manufacturer and the user must observe
the applicable directives and standards (e.g. DIN EN 60204-1
and DIN VDE 0580). Their observance must be guaranteed and
double-checked!
Magnetic Field Removal
AC-side Switching
The power circuit is interrupted before the rectifier. The magnetic
field slowly reduces. This delays the rise in braking torque.
When switching times are not important, please switch AC-side,
as no protective measures are necessary for coil and switching
contacts.
⇒ ⇒ ⇒ ⇒ Low-noise switching; however, the brake engagement time
is longer (approx. 6-10 times longer than with DC-side
switching). Use for non-critical brake times
DC-side Switching
The power circuit is interrupted between the rectifier and the coil
as well as mains-side. The magnetic field reduces extremely
quickly. This causes a quick rise in braking torque.
When switching DC-side, high voltage peaks are produced in
the coil, which lead to wear on the contacts from sparks and to
destruction of the insulation.
⇒ ⇒ ⇒ ⇒ Short brake engagement times (e.g. for EMERGENCY
STOP); however, louder switching noises.
Wiring Diagram for Design with
Release Monitoring / Proximity Sensor
Coil
(Varistor / Spark quenching unit)
BN+ (brown)
BK (black)
BU- (blue)
Plug Connections
info@mayr.de
®
-switch or
The
Inductive
proximity sensor
Earthing
Coil
E085 03 013 001 471
Page 2 of 2
31/01/2011 TK/RW/SU
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