2
Operating instructions
Safety-monitoring module
AES 1235
AES 1236
EN
1.7 Exclusion of liability
We shall accept no liability for damages and malfunctions resulting from
defective mounting or failure to comply with this operating instructions
manual. The manufacturer shall accept no liability for damages resul-
ting from the use of unauthorised spare parts or accessories.
For safety reasons, invasive work on the device as well as arbitrary re-
pairs, conversions and modifications to the device are strictly forbidden;
the manufacturer shall accept no liability for damages resulting from
such invasive work, arbitrary repairs, conversions and/or modifications
to the device.
2. Product description
2.1 Ordering code
This operating instructions manual applies to the following types:
AES 123
➀
No.
Option
Description
➀
5
without start-up test
6
with start-up test
Only if the information described in this operating instructions
manual are realised correctly, the safety function and therefore
the compliance with the Machinery Directive is maintained.
2.2 Special versions
For special versions, which are not listed in the order code below 2.1,
these specifications apply accordingly, provided that they correspond to
the standard version.
2.3 Destination and use
The safety-monitoring modules for integration in safety circuits are desi-
gned for fitting in control cabinets. They are used for the safe evaluation
of the signals of positive break position switches for safety functions
or magnetic safety sensors on sliding, hinged and removable safety
guards as well as emergency stop control devices.
Design
The safety-monitoring modules have a dual-channel structure. They
include two safety relays with monitored positive action contacts. The
NO contacts of the relays, which are wired in series, build the enabling
contacts.
The entire concept of the control system, in which the safety
component is integrated, must be validated to the relevant
standards.
2.4 Technical data
Standards:
IEC / EN 60204-1; EN 60947-5-1;
EN 60947-5-3; EN ISO 13849-1;
IEC 61508; BG-GS-ET-14; BG-GS-ET-20
Start conditions:
Automatic or start button
Feedback circuit available:
yes
Start-up test:
AES ...5: no; AES ...6: yes
Pull-in delay for automatic start:
adjustable 0.1 / 1.0 second
Drop-out delay in case of "emergency stop":
< 50 ms
Rated operating voltage U
e
:
24 VDC ± 15%
Rated operating current I
e
:
0.2 A
Rated insulation voltage U
i
:
250 V
Rated impulse withstand voltage U
imp
:
4.8 kV
Thermal test current I
the
:
6 A
Internal electronic fuse:
no
Power consumption:
< 5 W
Monitored inputs:
Cross-wire short detection:
selectable
Wire breakage detection:
yes
Earth connection detection:
yes
Number of NC contacts:
convertible 1NC → 2NC
Number of NO contacts:
convertible 1NO → 0NO
Outputs:
Stop category 0:
2
Stop category 1:
0
Number of safety contacts:
2
Number of auxiliary contacts:
0
Number of signalling outputs:
2
Switching capacity of the signalling outputs:
Y1-Y2 = 100 mA
Switching capacity of the safety contacts:
min. 10 mA
max. 6 A
Utilisation category to EN 60947-5-1:
AC-15: 230 V / 3 A
DC-13: 24 V / 2 A
Max. fuse rating:
6 A gG D-fuse
Mechanical life:
20 million operations
LED display:
ISD
Ambient conditions:
Operating temperature:
0 °C ... +55 °C
Storage and transport temperature:
−25 °C ... +70 °C
Resistance to shock:
30 g / 11 ms
Resistance to vibration:
10 ... 55 Hz, amplitude 0.35 mm
Protection class:
Enclosure: IP40
Terminals: IP20
Clearance: IP54
Degree of pollution:
2
Mounting:
Snaps onto standard DIN rail to EN 60715
Connection type:
Screw connection
Min. cable section:
0.25 mm²
Max. cable section:
2.5 mm², solid strand
or multi-strand lead
(including conductor ferrules)
Tightening torque:
0.6 Nm
Max. cable length:
1000 m of 0.75 mm² conductor
Weight:
190 g
Dimensions (H x W x D):
100 x 22.5 x 121 mm
2.5 Safety classification
Standards:
EN ISO 13849-1; IEC 61508
PL:
up to d
Control category:
up to 3
PFH-value:
1.0 x 10
-7
/ h; applicable for applications with
up to max. 50,000 switching cycles / year
and max. 80 % contact load.
Diverging applications upon request.
SIL:
up to 2
Service life:
20 years
