2
Operating instructions
Solenoid interlock
EX-AZM 415
EN
1.6 Warning about misuse
In case of improper use or manipulation of the safety
switchgear, personal hazards or damages to machinery
or plant components cannot be excluded. The relevant
requirements of the standard ISO 14119 must be observed.
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
resulting from the use of unauthorised spare parts or accessories.
For safety reasons, invasive work on the device as well as arbitrary
repairs, 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:
EX-AZM 415-
➀
ZPK
➁
-24VAC/DC-
➂
-3D
No. Option
Description
➀
11 / 11
2 NC contact / 2 NO contact
02 / 11
3 NC contact / 1 NO contact
02 / 20
2 NC contact / 2 NO contact
02 / 02
4 NC contacts
➁
Power to unlock
A
Power to lock
➂
1637
Gold-plated contacts
Only if the information described in this operating instructions
manual are realised correctly, the safety function and
therefore the compliance with the Machinery Directive and
the Explosion Protection 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 Purpose
The solenoid interlock has been designed to prevent in conjunction
with the control part of a machine, movable safety guards from being
opened before hazardous conditions have been eliminated. The
components can be used in explosion-endangered areas of Zone 22
equipment category 3D. The installation and maintenance requirements
to the standard series EN 60079 must be met.
Conditions for safe operation
Due to the specific impact energy, the components must be fitted
with a protection against mechanical stresses. The specific ambient
temperature range must be observed. The user must provide for a
protection against the permanent influence of UV rays.
Solenoid interlocks with power to lock principle may only
be used in special cases after a thorough evaluation of
the risk of accident, since the safety guard can be opened
immediately on failure of the power supply or upon activation
of the main switch.
The safety switchgears are classified according to ISO 14119
as type 2 interlocking devices.
The user must evaluate and design the safety chain in
accordance with the relevant standards and the required safety
level.
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
Equipment category:
L
II 3D
Ex protection:
Ex tc IIIC T90°C Dc X
Standards:
IEC 60947-5-1, EN 60079-0,
EN 60079-31, BG-GS-ET-19
Enclosure:
light-alloy die-cast, enamel finish
Max. impact energy:
4 J
Actuating speed:
max. 1 m/s
Actuator:
zinc-plated brass / aluminium
Protection class:
IP67 to IEC 60529
Contact material:
Silver
Coding level according to ISO 14119:
low
Contact type:
Change-over with double break Zb,
galvanically separated contact bridges
Switching system:
A
IEC 60947-5-1; slow action,
NC contact with positive break
Connection:
screw terminals
Cable section:
2.5 mm² (including conductor ferrules)
Rated impulse withstand voltage U
imp
:
4 kV
Rated insulation voltage U
i
:
250 V
Thermal test current I
the
:
6 A
Utilisation category:
AC-15
Rated operating current I
e
:
4 A / 230 VAC
Rated operating voltage U
e
:
4 A / 230 VAC
Max. fuse rating:
6 A gG D-fuse
Required short-circuit current:
1000 A
Positive break travel:
5 mm
Positive break force:
min. 15 N
(depending on the setting of the ball latch)
Rated control voltage U
s
:
24 VAC / DC
Magnet:
100% ED
Power consumption:
max. 10 W
Ambient temperature:
–10 °C … +50 °C
Mechanical life:
max. 1 million operations
Holding force F
max
:
3500 N
Latching force:
80 - 400 N (adjustable)
Tightening torque:
Cover screws: min. 0.6 Nm;
Bottom cover screws: min. 0.7 Nm;
Cable gland: min. 8 Nm;
Blocking screws: min. 8 Nm
Cable glands:
L
II 2GD
Cable cross-section:
min. Ø 7 mm; max. Ø 12 mm
2.5 Safety classification
Standards:
ISO 13849-1
Envisaged structure:
- Basically:
applicable up to Cat. 1 / PL c
- With 2-channel usage and
fault exclusion mechanism*:
applicable up to Cat. 3 / PL d
with suitable logic unit
B
10D
NC contact:
2,000,000
B
10D
NO contact at 10% ohmic contact load:
1,000,000
Service life:
20 years
* If a fault exclusion to the 1-channel mechanics is authorised.
MTTF
B
d x
x
h
s/h
3600
D
10D
op
op
op
n
0,1 x n
op
t
cycle
(Specifications can vary depending on the application-specific
parameters h
op
, d
op
, t
cycle
as well as the load.)
If multiple safety components are wired in series, the Performance
Level to ISO 13849-1 will be reduced due to the restricted error
detection under certain circumstances.