Installation and Operational Instructions for
ROBA
®
-brake-checker plus DC Type 028.700.2
(B.0287002.EN)
your reliable partner
25/02/2022 HH/GF
Page 5 of 11
Chr. Mayr GmbH + Co. KG
Eichenstraße 1, D-87665 Mauerstetten, Germany
Tel.: +49 8341 804-0, Fax: +49 8341 804-421
www.mayr.com
, E-Mail:
55
Preventative function monitoring
Through the monitoring of different parameters, the ROBA
®
-brake-checker recognises safety critical operating conditions of the
brake in advance, as well as acute faults (e.g. line breakage). These are determined as they occur and are notified to the user
as a warning before the brake can no longer be operated.
Only the mechanical switching function is checked. Conclusions on the braking torque are not possible (e.g. reduced friction
value due to oiling of the brake lining)
Possible causes for the warning:
• Increasing wear
• Rising coil temperature
• (too) low supply voltage
• Line voltage drop on feed lines to the brake
Technical data
Supply voltage,
power terminal
SELV/PELV
Ripple content
≤ 5 %
U
I
[VDC]
24/48
(10 - 52)
Input voltage (control
terminal)
SELV/PELV
ripple content
≤5 %
U
I
[VDC]
24
(7 - 32)
Output voltage
Reduction
U
O
[VDC]
0.99 × U
I
U
H
[VDC]
4, 6, 8, 12, 16, 20, 32, 40
Output current
max.
I
max
[A]
20
at ≤45 °C
I
RMS
[A]
10
at ≤60 °C
I
RMS
[A]
5
Power dissipation
[W]
≤5
Terminals
Control terminal
Nominal cross-section 0.2 – 2.5 mm² (22 – 14 AWG)
tightening torque screws: 0.4 Nm/3.6 lb-in
Power terminal
Nominal cross-section 0.2 – 2.5 mm² (22 – 14 AWG)
tightening torque screws: 0.4 Nm/3.6 lb-in
Device fuses
Control terminal
+24 V: 500 mA, medium
Power terminal
Fuse 1.2 * I
O
, fast acting
Device ambient temperature
[°C]
-25 to +60
Storage temperature
[°C]
-40 to +105
Protection
IP20
Installation conditions
The installation position can be user-defined.
Please ensure sufficient heat dissipation and air convection!
Do not install near to sources of intense heat!
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