ARRI cforce mini User manual

cforce mini Lens Motor
USER MANUAL
10th April 2019
cforce mini Lens Motor
USER MANUAL
10th April 2019

2
Imprint
Copyright © 2017 Arnold & Richter Cine Technik GmbH & Co. Betriebs KG.
All rights reserved. No parts of this document may be reproduced without
prior written consent of Arnold & Richter Cine Technik GmbH & Co. Betriebs
KG. Specifications are subject to change without notice. Errors, omissions,
and modifications excepted.
ARRI, ALEXA, AMIRA, Master Grip, LDS and LENS DATA SYSTEM are
trademarks or registered trademarks of Arnold & Richter Cine Technik GmbH
& Co. Betriebs KG. All other brands or products are trademarks or registered
trademarks of their respective holders and should be treated as such. Original
version.
For further assistance
ARRI Cine + Video Geräte Gesellschaft m.b.H.
Pottendorferstraße 23-25/3/1
A-1120 Vienna Austria
E-mail: [email protected]
Website: www.arri.com
Scope
This USER MANUAL applies to the following product:
K2.0006355 cforce mini Lens Motor with Software Update Packet SUP
1.3.3
Revision history
Version ID Order # Release Date
1.0 10001106 K5.0007312 F05851 29.05.2015
2.0 10001106 K5.0007312 W01106 22.03.2016

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3.0 10001106 K5.0007312 10.04.2019

4
Disclaimer
Before using the products described in this manual, be sure to read and
understand all the respective instructions.
The ARRI cforce mini Lens Motor is only available to commercial customers.
By utilization, the customer agrees that the cforce mini Lens Motor or other
components of the system are deployed for commercial use only. Otherwise
the customer must contact ARRI before utilization.
While ARRI endeavors to enhance the quality, reliability and safety of their
products, customers agree and acknowledge that the possibility of defects
thereof cannot be eliminated entirely. To minimize the risk of damage to
property or injury (including death) to persons arising from defects in the
products, customers must incorporate sufficient safety measures in their work
with the system and heed the stated canonic use.
ARRI or its subsidiaries do not assume any responsibility for losses incurred
due to improper handling or configuration of the cforce mini Lens Motor or
other system components.
ARRI assumes no responsibility for any errors that may appear in this
document. The information is subject to change without notice.
For product specification changes after this manual was published, refer to
the latest published ARRI data sheets or release notes, etc., for the most up-
to-date specifications. Not all products and/or types are available in every
country. Please check with an ARRI sales representative for availability and
additional information.
Neither ARRI nor its subsidiaries assume any liability for infringement of
patents, copyrights or other intellectual property rights of third parties by or
arising from the use of ARRI products or any other liability arising from the
use of such products. No license, express, implied or otherwise, is granted
under any patents, copyrights or other intellectual property right of ARRI or
others.
ARRI or its subsidiaries expressly exclude any liability, warranty, demand or
other obligation for any claim, representation, cause, action, or whatsoever,
express or implied, whether in contract or not, including negligence, or
incorporated in terms and conditions, whether by statue, law or otherwise.
In no event shall ARRI or its subsidiaries be liable for or have a remedy
for recovery of any special, direct, indirect, incidental, or consequential
damages, including, but not limited to lost profits, lost savings, lost revenues

5
or economic loss of any kind or for any claim by a third party, downtime,
good-will, damage to or replacement of equipment or property, any cost or
recovery of any material or goods associated with the assembly or use of our
products, or any other damages or injury of the persons and so on or under
any other legal theory.
In the event that one or all of the foregoing clauses are not allowed by
applicable law, the fullest extent permissible clauses by applicable law are
validated.

6 Table of Contents
Table of Contents
1 For your safety...................................................................7
2 Audience and intended use.............................................. 9
3 Scope of delivery and warranty..................................... 10
4 Introduction...................................................................... 11
4.1 LBUS..................................................................... 12
5 Motor layout..................................................................... 13
5.1 Setup button..........................................................13
5.2 Status LED............................................................ 14
6 Motor preparation............................................................ 15
7 Compatibility.....................................................................18
7.1 Sample configurations...........................................19
8 Software update............................................................... 23
9 Appendix........................................................................... 24
9.1 Part Numbers........................................................ 24
9.2 Specifications........................................................ 27
9.3 Pinouts...................................................................27
9.4 Dimensions and weight......................................... 28
9.5 Service contacts.................................................... 29
9.6 International declarations...................................... 30

For your safety 7
1 For your safety
Before use, please ensure that all users read, understand, and follow the
instructions comprehensively in this document.
Vital precautions
DANGER
Risk of electric shock and fire!
Short-circuits may entail lethal damage!
Before use, read and follow all valid instructions.
Use solely and exclusively as described in the instructions.
Never open. Never insert objects.
For operation, always use a power source as indicated in the instructions.
Always unplug the cable by gripping the plug, not the cable.
Never try to repair. All repair work should be done by a qualified ARRI
Service Center.
Never remove or deactivate any safety equipment (incl. warning stickers
or paint marked screws).
Always protect from moisture, cold, heat, dirt, vibration, shock, or
aggressive substances.

8 For your safety
DANGER
Risk of fire!
Short-circuits and back currents to power supplies/batteries may entail
lethal damage!
Always use original ARRI/cmotion LBUS cables to external power
sources (D-Tap, XLR)! ARRI/cmotion LBUS cables to external power
sources provide a protection circuit to prevent back currents to power
supplies/batteries.

Audience and intended use 9
2 Audience and intended use
ADVICE
The product is solely and exclusively available for commercial costumers
and shall be used by skilled personnel only. Every user should be trained
according to ARRI guidelines. Use the product only for the purpose
described in this document. Always follow the valid instructions and
system requirements for all equipment involved.
The cforce mini Lens Motor is solely and exclusively for use on professional
camera setups.

10 Scope of delivery and warranty
3 Scope of delivery and warranty
ADVICE
Product and packaging contain recyclable materials. Always store, ship,
and dispose of according to local regulations. ARRI is not liable for
consequences from inadequate storage, shipment or disposal.
Delivery
On delivery, please check that the package and content are intact. Never
accept a damaged or incomplete delivery. A complete delivery includes:
cforce mini motor unit
cforce mini clamp console 19/15mm
cforce mini gear 0.8/40t
User manual
Original packaging
Warranty
For scope of warranty, please ask your local ARRI Service Partner. ARRI is
not liable for consequences from inadequate shipment, improper use, or third-
party products.

Introduction 11
4 Introduction
ARRI and cmotion have partnered up to develop the new intelligent cforce
mini motor.
The small and lightweight lens motor moves lenses on weight-optimized
camera setups with remarkable speed and torque. Equipped with twin LBUS
connectors and using daisy chain technology, up to three cforce mini motors
can be linked up in a row.
The cforce mini connects directly to the new ALEXA Mini LF camera and
ALEXA Mini camera, providing a super lightweight, integrated solution, as
well as to ARRI’s new AMC-1 and UMC-4 motor controllers for camera-
independent setups.
The cforce mini is fully compatible with all cmotion LBUS compatible devices
such as the compact LCS and the cvolution system, the new pan-bar zoom,
the knob solo and ENG adapters.

12 Introduction
Main features
Super small and lightweight (~173g/6oz incl. clamp console and
gear)
Daisy-chainable via LBUS
Directly compatible with ARRI’s ALEXA Mini camera, ALEXA
Mini LF camera, AMC-1 and UMC-4 motor controllers, cmotion's
compact LCS, cvolution and broadcast solutions
4.1 LBUS
LBUS is a bus standard designed to allow multiple lens motors and control
devices to communicate with each other. Up to three cforce-type motors can
be chain-linked in a row. Each cforce motor has two identical, bi-directional
LBUS interfaces providing power and control signals to the motor.

Motor layout 13
5 Motor layout
1 Setup button
2 Focus, Iris, Zoom indicator
3 LBUS connector 1
4 LBUS connector 2
5.1 Setup button
Motor assignment
Use the SETUP button to assign the cforce mini motor to the focus, iris or
zoom control of the respective control device. Make sure that the assignment
matches the lens scale the motor is attached to.
Press the SETUP button momentarily to indicate the current motor
assignment. The F (Focus), I (Iris) or Z (Zoom) indicator underneath the
SETUP button will light up for three seconds.
Press the SETUP button momentarily again to change the current motor
assignment. Toggle through until you reach the desired setting.
Motor calibration
Press the SETUP button for three seconds to start the automatic calibration
of the respective motor.
Press the SETUP button momentarily during calibration to interrupt the
calibration process.

14 Motor layout
5.2 Status LED
The status LED of the SETUP button indicates the current motor status.
LED Status
Solid green Motor is ready and calibrated, no
warnings
Green/red flashing Motor is calibrated, but no motor mas-
ter available (idle)
Yellow flashing Motor is currently calibrating
Green/yellow flashing Motor needs to be calibrated (calibra-
tion request)
Solid yellow Motor is in calibration timeout state
Solid red Motor power supply is below 10V
Red flashing No LBUS data is available
Green flashing Motor is in passive mode

Motor preparation 15
6 Motor preparation
Mounting to 19 mm rods
1. Open the clamp console by turning the thumbscrew counterclockwise.
2. Remove the 19/15mm clamp insert.
3. Attach the clamp console on the rod, with the motor gear engaged to
the lens barrel.
4. Close the clamp console by turning the thumbscrew clockwise.
Mounting to 15 mm rods
1. Open the clamp console by turning the thumbscrew counterclockwise.
2. Attach the 19/15mm clamp insert (K2.0006175) on the 15 mm rod.
3. Attach the clamp console around the clamp insert on the rod, with the
motor gear at the respective lens barrel.
4. Close the clamp console by turning the thumbscrew clockwise.
Note: For high torque applications use clm-4 clamp insert (K2.0002080,
not included)
Mounting to Panavision rods
1. Open the clamp console by turning the thumbscrew counterclockwise.
2. Remove the 19/15mm clamp insert.

16 Motor preparation
3. Attach the CLM-4 Clamp Insert 5/8" (K2.72115.0, not included) to the
5/8" rod.
4. Attach the clamp console around the clamp insert on the rod, with the
motor gear at the respective lens barrel.
5. Close the clamp console by turning the thumbscrew clockwise.
Setting up motor
1. Connect the motor to its control device.
2. Use the SETUP button to assign the cforce motor to the focus, iris or
zoom control of the control device. Make sure that the assignment
matches the lens scale the motor is attached to.
3. Set the motor side/direction on the control device.
4. Set the motor torque on the control device.
5. Press the SETUP button for three seconds to start the automatic
calibration of the respective motor. Alternatively, activate the calibration
process through the control device.
CAUTION
Risk of injury! Do not touch motor gear while motor is powered up!

Motor preparation 17
ATTENTION
The motor shall only be used for smooth-runing lenses, otherwise the
gear-box could get damaged.
ADVICE
To prevent the motor from falling down when detaching the motor from
the lens, hold the motor unit with one hand while opening the clamp
console.

18 Compatibility
7 Compatibility
The cforce mini Lens Motor is directly compatible with the following ARRI
products:
ALEXA Mini LF (with LPL lens mount with LBUS connector)
ALEXA Mini camera (with Titanium PL LDS mount with LBUS
connector
Active Motor Controller AMC-1
Universal Motor Controller UMC-4 in hard-wired mode
Wireless Compact Unit WCU-4 in hard-wired mode (from WCU-4
SUP 2.2) in combination with a motor controller, an ALEXA Mini LF
or an ALEXA Mini camera
The cforce mini Lens Motor is directly compatible with the following cmotion
products:
cvolution camin 3M
broadcast camin
compact camin
pan bar zoom
knob solo
ENG adapter
cworld

Compatibility 19
7.1 Sample configurations
cforce mini Lens Motors can be used in different applications, within ARRI or
cmotion systems. The following configurations are samples, making no claim
to be exhaustive.

20 Compatibility
ADVICE
If UMC-4 is used for controlling motors, an additional power cable
is required (See "LBUS cables", Page 24).
If motor is used with ALEXA Mini or ALEXA Mini LF an additional
power cable is required.
For hard-wired motor control with WCU-4, use an additional
motor controller connected in the LBUS chain.