Solenoid Derating graph
1,4
1,2
1,1
1,0
U
U
B
0,8
U
N
0,6
-25
-40
-20
0
20
Ambient Temperature
U
maximum power supply dependent upon temperature
BMax
U
response voltage at coil temperature = ambient temperature
An c
U
response voltage at preceding agitation at 1.1 x Un
An h
Variants
Locking module ZRX
Locking module, de-energized on trip, without additional functions.
Locking module ZAX
Locking module, energized on trip, without additional functions.
Locking module ZRH
Locking module, de-energized on trip, manual unlocking.
In the case of electrical faults, for instance, during power failure, the
manual unlocking allows the mechanical release of an access from
outside the dangerous area with the help of a tool.
With the actuation of the manual unlocking, the circuits on terminals 7
and 8; 9 and 11 as well as 17 and 18 will be cut off at the same time and
contact between 10 and 11 will be closed. Opening of these circuits must
generate an emergency-stop.
The manual unlockings are not sealed or lead-sealed because of the
typically rugged applications. When using a locking module with manual
unlocking we therefore recommend combining it with acoustic and also
visual warning signals and to provide additional locking on the control
level.
Locking modules YRX and YRH
For applications where the key modules 10, 10S or an actuator module
K, E or padlock module W shall be installed above the locking module,
the YRX, YAX and YRH versions are available. Additional information
about the circuit diagram and use of the locking modules YYRX, YAX and
YRH is available in the data sheet locking module YRX, YAX and YRH as
well as in data sheets actuator module K and E.
Function Selection / Versions
Selectable
functions
Locking module
STS-ZRX
X
STS-ZAX
X
STS-ZRH
X
U
BMax
An h
U
An c
40
60
80
°C
X
Important Notes
Function differences of locking modules with load current principle
and locking modules with standby current principle.
Locking modules based on the standby current principle are in de-
energized condition when in the locked position. This must be remembered
especially when examining faults such as power failure or wire break.
Only when the safety evaluation shows, that a solenoid lock with closed
circuit operation is not suitable or is not required, a solenoid lock with open
circuit operation can be used.
Contrary to the locking modules based on the standby current principle
locking modules based on the load current principle lock only when the
circuit is closed. The locking modules unlock if the circuit opens with the
load current principle.
If a locking module is used based on the load current principle terminals 7
and 8 or 17 and 18 must be included in the safety circuit.
Manual unlocking
If misuse of the manual unlocking must be suspected a locking module
based on the standby current principle without manual unlocking can
also be used as an alternative. In the event of a power interruption the
locking module must be unlocked in this case by removing the cover
and subsequently pushing back the magnetic tappet (refer to the
SAFEMASTER STS Installation and Operating Instructions).
A locking module based on the load current principle with manual unlocking
is not available since it releases in the event of a power interruption.
Ordering Designation
Locking module ZRX
Article number: 0060982
Locking module ZAX
Article number: 0063406
Locking module ZRH
Article number: 0060983
Locking module ZRH cover
Article number: 0065273
14
SAFEMASTER STS Locking module ZRX, ZAX and ZRH / 10.07.20 en / 271A