716
HS5E Miniature Interlock Switches with Solenoid
Safety Precautions
In order to avoid electric shock or fi re, turn power off before
•
installation, removal, wire connection, maintenance, or
inspection 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 satisfi es the
requirement of the safety category.
Do not place a PLC in the circuit between the interlock switch
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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
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a breakdown or an accident may occur.
Do not install the actuator in a location where the human
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body may come in contact. Otherwise injury may occur.
Solenoid lock is locked when energized, and unlocked when
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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.
When changing the head orientation, disconnect the cable
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and turn the manual unlock to the UNLOCK position in
advance. If the head orientation is changed when the cable
is connected and the manual unlock is in the LOCK position,
machines may start to operate, causing danger to the
operators.
When using the four-circuit independent output type as an
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input to safety circuit, connect the door monitor circuits (11-
12, 21-22, 31-32)
and lock monitor circuits (41-42, 51-52,
61-62) in series.
Instructions
Regardless of door types, do not use the interlock switch as
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a door stop. Install a mechanical door stop at the end of the
door to protect the interlock switch against excessive force.
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.
Prevent foreign objects such as dust and liquids from entering
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the interlock switch while connecting a conduit or wiring.
If the operating atmosphere is contaminated, use a protective
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cover to prevent the entry of foreign objects into the interlock
switch through the actuator entry slots.
Entry of foreign objects into the interlock switch may affect the
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mechanism of the interlock switch and cause a breakdown.
Plug the unused actuator entry slot using the slot plug
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supplied with the interlock switch.
Do not store the interlock switches in a dusty, humid, or
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organic-gas atmosphere.
Use proprietary actuators only. When other actuators are
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used, the interlock switch may be damaged.
Do not modify the actuator, otherwise it will damage the
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interlock switch.
Do not open the lid of the interlock switch. Loosening the
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screws may cause damage to the interlock switch.
The actuator retention force is 1400N. Do not apply a load
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higher than the rated value. When a higher load is expected,
provide an additional system consisting of another interlock
switch without lock (such as the HS5B 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
measures.
While the solenoid is energized, the interlock switch
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temperature rises approximately 40°C above the ambient
temperature (to approximately 90°C while the ambient
temperature is 50°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
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wiring, otherwise solenoid will be damaged. Do not apply
voltage over the rated voltage, otherwise the solenoid will be
burnt.
Although the HS9Z-A51A and HS9Z-A52A actuators (w/
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rubber bushings) alleviate the shock when the actuator enters
a slot in the interlock switch, make sure that excessive shock
is not applied. If the rubber bushings become deformed or
cracked, replace with new ones.
Minimum Radius of Hinged Door
When using the interlock switch for a hinged door, refer to
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the minimum radius of doors shown below. For the doors
with small minimum radius, use angle adjustable actuators
(HS9Z-A53 or HS9Z-A55).
Note: Because deviation or dislocation of hinged door may occur in actual
applications, make sure of the correct operation before installation.
HS9Z-A52 Actuator
When the door hinge is on the extension line of the interlock
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switch surface:
(161)
(35)
(36.2)
190 mm
170 mm
Door Hinge
I
nterlock Switch
Mounting Holes
Minimum Radius
Minimum
Radius
Door Hinge
When the door hinge is on the extension line of the actuator
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mounting surface:
Door Hinge
Door Hinge
(231)
Interlock Switch
Mounting Holes
(41.5)
(40.3)
230 mm
Minim
u
m
R
a
dius
Minim
um
Radius
260 mm
HS9Z-A52A Actuator (w/rubber bushings)
When the door hinge is on the extension line of the interlock
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switch surface:
(35)
Door Hinge
(36.2)
Interlock Switch
Mounting Holes
(111)
140mm
Minim
um Radius
Minim
um
Radius
Door Hinge
Centers 12 mm:
120 mm
Centers 20 mm:
170 mm
