Page 1
While every effort has been made to ensure the accuracy of the information provided, no liability can be taken for any errors or omission.
Castell Safety International Limited reserves the right to alter specications and introduce improvements without prior notice.
www.castell.com
1 of 6
U-MSI-001-E Issue 2
MSI
Motion Sensing Interlock
User Manual - Original Language Version
The MSI is designed to control access to rotating machinery that
has a run-down time. The MSI relies on the detection of motion
via two sensors. Only when both sensors detect zero movement
can the key be released. The MSI has been designed to provide
the highest level of safety when installed as part of an access
control system for dangerous machinery.
Operation
MSI-FSB-F-3-110A
The Castell MSI motion sensing interlocks are typically used for machine isolation in applications in order to protect the
hazardous area from access while power is on.
1
2
3
MSI movement sensing interlock
Power is on, key is trapped.
Red LED is illuminated.
Turn the key to OFF position. Once
zero movement of a motor has been
detected, a signal is sent to the the
unit energising the solenoid. The
green LED illuminates. Release the
key by pushing the green button.
Key is released, power is off and
the motor stands still.
1. While the power is on and a motor is running, the key is trapped in the MSI motor sensing interlock. A red LED
is illuminated.
2. Turn the key to OFF position to switch the power off. A movement sensor in the MSI unit gives a signal to
the solenoid once zero movement has been detected. This will illuminate a green LED. The key can now be
released by pushing the green button. This key can be taken to unlock the access lock on the motor unit.
3. The motor stands still and power is off until the key is replaced in the MSI motor sensing unit.
Page 2
While every effort has been made to ensure the accuracy of the information provided, no liability can be taken for any errors or omission.
Castell Safety International Limited reserves the right to alter specications and introduce improvements without prior notice.
www.castell.com
2 of 6
U-MSI-001-E Issue 2
MSI
Motion Sensing Interlock
User Manual - Original Language Version
The MSI movement sensing interlock is designed to be part of a safety system and is used to switch off the power and detect
zero motor movements before releasing a key which is then used to gain access to a hazardous area via an access interlock
such as the AI or Salus.
The MSI movement sensing interlock is not designed for security purposes.
Usage
Installation
The MSI movement sensing interlock should be mounted to a surface using suitable fasteners (please refer to drawing on page 4
for more details). The lock face should be sealed to the panel for ingress protection.
Cables should be connected to the switch in accordance with the applicable wiring diagrams. Ensure that the unit is bonded for
earth continuity (please refer to drawing on page 5 for more installation details).
IMPORTANT:
The interlock should be mounted using anti-tamper fasteners to prevent unauthorised removal.
The MSI range of movement sensing interlocks must be installed by a competent and qualied person who has read and
understood these instructions. Please retain this document in your technical le.
Maintenance
Periodic visual checks should be carried out by the site manager / safety ofcer.
Do not lubricate lock barrel with oil or grease, use CK Dry Powder Graphite if necessary.
In case of defects beeing detected please contact your nearest Castell Support Department for further actions.
Please see Contact section for contact details.
Page 3
While every effort has been made to ensure the accuracy of the information provided, no liability can be taken for any errors or omission.
Castell Safety International Limited reserves the right to alter specications and introduce improvements without prior notice.
www.castell.com
3 of 6
U-MSI-001-E Issue 2
MSI
Motion Sensing Interlock
User Manual - Original Language Version
Technical Data
We, the manufacturers, declare that the components, detailed herein and placed on the market, comply with all the essential
health and safety requirements applying to them.
Empowered signatory:
Mr T.C. Whelan
Managing Director
EC-Declaration
Application
The MSI is designed to operate as part of an integrated safety system,
controlling access to hazardous areas to motor driven, high risk
applications where complete isolation of the power supply is required
before access is granted. Two sensors are positioned on the rotating
shaft, these are wired into the MSI unit.
When the electric motor is running, the key of the MSI interlock
cannot be removed, hence preventing access to the hazardous area.
To gain access to the area, the electrical motor must be switched
off by turning the key to OFF position. This changes the switches of
the electrical supply to the machine to a safe condition. A movement
sensing detector sends a signal to the MSI unit once a zero movement
of the motor has been stated. A green LED illuminates. By pushing
the green button, the key can now be removed and taken by the
personnell to the AI access interlock.
The guard can only be opened when the electrical supply has been
switched into a safe condition.The machine cannot be restarted
until the door is closed and the key is removed and taken to the MSI
movement sensing interlock.
Temperature
Minimum: -5ºC [23ºF]
Maximum: 55ºC [131ºF]
Type of mounting Surface mount using suitable fasteners (please refer to drawing on page 4 for more details)
Attachment
Millimeters: 240mm(H) x 140mm(W)
Inches: 9.45”(H) x 5.51”(W)
Weight 5.0 kg
Material Brass or Stainless steel lock portions, powder coated mild steel enclosure
Standards EN60439-1
Cable Size M20 Gland x 2
IP Rating IP65, NEMA 4 enclosure
Standards Standstill detection components to UL
Contact Rating Continuous, unattended, remote
Use Engine switch, circuit-breaker or control switch
Voltage 24 VDC and 240 VAC, 120 VAC
Max Motor Voltage 600V
Max Power Consumption 20VA / 18W
Page 4
While every effort has been made to ensure the accuracy of the information provided, no liability can be taken for any errors or omission.
Castell Safety International Limited reserves the right to alter specications and introduce improvements without prior notice.
www.castell.com
4 of 6
U-MSI-001-E Issue 2
MSI
Motion Sensing Interlock
User Manual - Original Language Version
Drawing
Dimensions:
in mm
Note: For safe mounting, use security screws
MSI
Page 5
While every effort has been made to ensure the accuracy of the information provided, no liability can be taken for any errors or omission.
Castell Safety International Limited reserves the right to alter specications and introduce improvements without prior notice.
www.castell.com
5 of 6
U-MSI-001-E Issue 2
MSI
Motion Sensing Interlock
User Manual - Original Language Version
Wiring Diagram
MSI
Page 6
While every effort has been made to ensure the accuracy of the information provided, no liability can be taken for any errors or omission.
Castell Safety International Limited reserves the right to alter specications and introduce improvements without prior notice.
www.castell.com
6 of 6
U-MSI-001-E Issue 2
MSI
Motion Sensing Interlock
User Manual - Original Language Version
Contact Information
Order Information
Product Type 1 2 3 4* 5 6 7
Part Number MSI - - - - -
Example MSI - FS B - F - 1S - 3 - 110 A
8
ABC
1 Lock portion type FS
(1)
/ Q
(1)
2 Material B = Brass (standard)
3 Mounting F = Front of board mount, with enclosure (standard)
4*
Secondary lock portion(s)
Secondary lock portions are provided for personnel
keys, primary lock posrtion for the isolation key
1S / 2S = 1 or 2 secondary lock portions respectively
5 Number of poles 3, standard
6 Control voltage 110 / 24 / 240 (standard)
7 Current AC (use for 110V and 240V) / DC (use for 24V)
8 Lock portion symbol FS
(1)
up to 3 characters / Q
(1)
up to 6 characters
(1)
FS - Lock type Q - Lock type
Up to 3 characters Up to 6 characters
Special construction available upon enquiry
Accessories
Product Part number
Flip Cap
FLIP-S
Castell Safety International Ltd.
The Castell Building
217 Kingsbury Road
London, England NW9 9PQ
t: +44 (0) 20 8200 1200
f: +44 (0) 20 8905 9378
Castell Safety International Ltd.
Oskar-Jäger-Strasse 137
50825 Köln
Germany
t: +49 (0) 221 1694 794
f: +49 (0) 221 1694 795
Castell Interlocks Inc.
Suite 800
150 N Michigan Avenue,
Chicago, Illinois 60601
USA
t: +1.312.360.1516
f: +1.312.268.5174
Castell Safety China
Building 1, No. 123,
Lane 1165, Jindu Road,
Minhang District,
Shanghai 201108, China.
t: +86 21 61519023
f: +86 21 61519030
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