PLC
6
5
4
3
2
1
24-48VDC
24VDC
20
19
18
17
16
15
14
13
12
11
bn
bl
OUT
IN
6
5
4
3
2
1
20
19
18
17
16
15
14
13
12
11
ROBA-brake-checker
plus DC
4/028.700.2
Signal
Error
W
arn
Digital OUT
Reset
Digital IN
F/S
Start
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 6 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:
66
Electrical Connection
Power terminal
1 Supply voltage 0 VDC
2 Output voltage –
3 Contact 1 (External fast switch off)
4 Contact 2 (External fast switch off)
5 Output v
6 Supply v24 VDC
Electrical Connection
Control terminal
11 Input - Reset
12 Input - Digital IN (release detection ON/OFF)
13 Input - F/S
14 Input - Start
15 Output - Digital OUT (not in use)
16 Output - Warn (100 mA)
17 Output - Error (100 mA)
18 Output - Signal (100 mA)
19 Supply voltage 0 VDC
20 Supply voltage 24 VDC
Wiring Example
Equivalent circuit diagram
INT interference sup-
pression diode
(triple redundancy) ac-
cording to SN29500-3
MTTF = 2264 years at
60 °C
Bridge
or
external
switch
INT switch
EXT switch
66
