Datasheet

89
HS1L Interlock Switches with Solenoid
Safety Precautions
•In order to avoid electric shock or fire, turn power off before
installation, removal, wire connection, maintenance, or in-
spection of the interlock switch.
•If relays are used in the circuit between the interlock switch
and the load, consider the danger and use safety relays,
since welded or sticking contacts of standard relays may
invalidate the functions of the interlock switch. Perform a risk
assessment and establish a safety circuit which satisfies the
requirement of the safety category.
•Do not place a PLC in the circuit between the interlock switch
and the load. Safety security can be endangered in the event
of a malfunction of the PLC.
•Do not disassemble or modify the interlock switch, otherwise
a breakdown or an accident may occur.
•Do not install the actuator in a location where the human body
may come in contact. Otherwise injury may occur.
•Install the actuator where it does not touch human body when
the door is opened/closed. Otherwise injury may occur.
•Solenoid lock is locked when energized, and unlocked when
de-energized. When energization is interrupted due to wire
disconnection or other failures, the interlock switch may be
unlocked causing possible danger to the operators. Solenoid
lock must not be used in applications where locking is strictly
required for safety. Perform a risk assessment and determine
whether solenoid lock is appropriate.
•In order to prevent the interlock switch and actuator from
being removed without authorization, it is recommended to
install an one-way screw or a screw that needs a special tool
for removal. Welding or rivet is also recommended.
Instructions
•Regardless of door types, do not use the interlock switch as
a door stop. Install a mechanical door stop at the end of the
door to protect the interlock switch against excessive force.
•Make sure that no force is applied on the actuator, otherwise
the actuator may not be unlocked properly.
•Do not apply excessive shock to the interlock switch when
opening or closing the door. A shock to the interlock switch
exceeding 1,000 m/s
2
may cause damage to the interlock
switch.
•If the operating atmosphere is contaminated, use a protective
cover to prevent the entry of foreign objects into the interlock
switch through the actuator entry slots. Entry of foreign ob-
jects into the interlock switch may affect the mechanism of the
interlock switch and cause a breakdown.
•Plug the unused actuator entry slot using the slot plug sup-
plied with the interlock switch.
•Do not store the interlock switches in a dusty, humid, or
organic-gas atmosphere, or the switches are subject to direct
sunlight.
•Use proprietary actuators only. When other actuators are
used, the interlock switch may be damaged.
•Do not modify the actuator, otherwse it will damage the inter-
lock switch.
•The actuator retention force is 3000N. Do not apply a load
higher than the rated value. When a higher load is expected,
provide an additional system consisting of other interlock
switch without lock (such as the HS5D interlock switch) or a
sensor to detect door opening and stop the machine.
•Regardless of door types, do not use the interlock switch as a
door lock. Install a separate lock using a latch or other mea-
sures.
•While the solenoid is energized, the interlock switch tempera-
ture rises approximately 40°C above the ambient temperature
(to approximately 95°C while the ambient temperature is
55°C). To prevent burns, do not touch. If cables come into
contact with the interlock switch, use heat-resistant cables.
•Solenoid has polarity. Be sure of the correct polarity when
wiring. Do not apply overvoltage, otherwise the solenoid will
be burnt.
Minimum Radius of Hinged Door
When using the interlock switch for a hinged door, refer to
the minimum radius of doors shown below. For the doors with
small minimum radius, use angle adjustable actuators (HS9Z-
A3S).
Note: The following values apply when the actuator does not interfere
with the interlock switch when opening and closing the door.
Because deviation or dislocation of hinged door may occur in actual
applications, make sure of the correct operation before installation.
When using HS9Z-A2S Actuator
•When the door hinge is on the extension line of the interlock
switch surface:
270 mm
450 mm
Door Hinge
Minimum
Radius
Minimum
Radius
Door Hinge
•When the door hinge is on the extension line of the actuator
mounting surface:
510 mm
Door Hinge
Minimum
Radius
Minimum
Radius
840 mm
Door Hinge
When using HS9Z-A3S Actuator
•When the door hinge is on the extension line of the interlock
switch surface: 50 mm
•When the door hinge is on the extension line of the actuator
mounting surface: 80 mm
80 mm
50 mm
Door Hinge
Minimum
Radius
Minimum
Radius
Door Hinge
Actuator Angle Adjustment
•Using the angle adjustment screw, the actuator angle can be
adjusted (refer to the dimensional drawing on page 87).
Adjustable angle: 0 to 20°
•The larger the adjusted angle of the actuator, the smaller
the applicable radius of the door opening. After installing the
actuator, open the door. Then adjust the actuator so that its
edge can be inserted properly into the actuator entry slot of
the interlock switch.
•After adjusting the actuator angle, apply Loctite to the adjust-
ment screw so that the screw will not move.
HS1L