ARRI cforce plus User manual

cforce plus Lens Motor
USER MANUAL
1st August 2016
cforce plus Lens Motor
USER MANUAL
1st August 2016

2
Imprint
Copyright © 2016 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, 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:
K2.0008819 cforce plus Lens Motor with Software Update
Packet V1.1.1
Revision history
Version ID Order # Release Date
01 10001488 K5.0008999 F06024 1.6.2016
02 10001488 K5.0008999 W01137 1.8.2016

3
Disclaimer
Before using the products described in this manual, be sure to read
and understand all the respective instructions.
The ARRI cforce plus Lens Motor is only available to commercial
customers. By utilization, the customer agrees that the cforce plus
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
plus 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

4
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.

Table of Contents 5
Table of Contents
1 For your safety....................................................................6
2 Audience and intended use............................................... 8
3 Scope of delivery and warranty.........................................9
4 Introduction........................................................................10
4.1 LBUS......................................................................... 11
5 Motor layout.......................................................................12
5.1 Setup button..............................................................12
5.2 Status LED................................................................13
6 Motor preparation............................................................. 14
7 Compatibility......................................................................16
7.1 Sample configurations.............................................. 16
8 Software update................................................................ 20
9 Appendix............................................................................ 21
9.1 Part numbers............................................................ 21
9.2 Specifications............................................................ 24
9.3 Pinouts...................................................................... 24
9.4 Dimensions and weight.............................................25
9.5 Service contacts........................................................26
9.6 International declarations..........................................27

6 For your safety
1 For your safety
Before use, please ensure that all users read, understand, and
follow the instructions comprehensively in this document.
Risk levels and alert symbols
Safety warnings, safety alert symbols, and signal words in these
instructions indicate different risk levels:
DANGER!
DANGER indicates an imminent hazardous situation, which, if
not avoided, will result in death or serious injury.
WARNING!
WARNING indicates a potentially hazardous situation, which, if
not avoided, may result in death or serious injury.
CAUTION!
CAUTION indicates a potentially hazardous situation, which, if
not avoided, may result in minor or moderate injury.
NOTICE
NOTICE explains practices not related to physical injury. No
safety alert symbol appears with this signal word.
Note: Provides additional information to clarify or simplify a
procedure.

For your safety 7
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.
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.

8 Audience and intended use
2 Audience and intended use
NOTICE
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 plus Lens Motor is solely and exclusively for use on
professional camera setups.

Scope of delivery and warranty 9
3 Scope of delivery and warranty
NOTICE
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 plus motor unit
cforce plus clamp console 19/15mm
cforce plus gear assembly 60 teeth m0.8
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.

10 Introduction
4 Introduction
ARRI and cmotion have partnered up to develop the new intelligent
cforce plus motor. The fast and versatile lens motor moves all
common cine style lenses with remarkable speed and torque.
Equipped with twin LBUS connectors and using daisy chain
technology, up to three cforce plus or mini motors can be linked up
in a row.
The cforce plus connects directly to the new ALEXA Mini camera,
providing a integrated, versatile solution, e.g. if larger studio zooms
are being used. It also connects to ARRI’s AMC-1 motor controller
and the Universal Motor Controller UMC-4 for camera-independent
setups.
The cforce plus is fully compatible with all cmotion LBUS
compatible devices such as the compact LCS and the cvolution
system, the pan-bar zoom, the knob solo and ENG adapters.
NOTICE
To tap the full potential of the device, have all connected units
updated to the latest available firmware.

Introduction 11
Main features
Fast, strong and versatile lens motor
Daisy-chainable via LBUS
Directly compatible with ARRI’s ALEXA Mini camera,
AMC-1 and UMC-4 motor controllers, cmotion's compact
LCS, cvolution, pan bar zoom, knob solo 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.

12 Motor layout
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 plus motor to the focus,
iris or zoom control of the respective control device. Make sure that
the assignment matches the lens axis 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.

Motor layout 13
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
master available (idle)
Yellow flashing Motor is currently calibrating
Green/yellow flashing Motor needs to be calibrated (cal-
ibration 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

14 Motor preparation
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.
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.

Motor preparation 15
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 though the control device.
CAUTION!
Risk of injury! Do not touch motor gear while motor is powered
up!
NOTICE
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.

16 Compatibility
7 Compatibility
The cforce plus Lens Motor is directly compatible with the following
ARRI products:
ALEXA Mini camera (with Titanium PL LDS mount with
LBUS connector; from SUP 4.1)
Active Motor Controller AMC-1 (from SUP 1.44)
Universal Motor Controller UMC-4 (from UMC-4 SUP 1.42)
Wireless Compact Unit WCU-4 in hard-wired mode (from
WCU-4 SUP 2.2.26) in combination with a motor controller
or an ALEXA mini
The cforce plus 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
7.1 Sample configurations
cforce plus Lens Motors can be used in different applications,
within ARRI or cmotion systems. The following configurations are
samples, making no claim to be exhaustive.

Compatibility 17
NOTICE
If UMC-4 is used for controlling motors, an additional
power cable is required (See "LBUS cables", page 21).
For hard-wired motor control with WCU-4, use an
additional motor controller connected in the LBUS chain.

18 Compatibility

Compatibility 19

20 Software update
8 Software update
The cforce plus Lens Motor can be updated from external devices
through its LBUS interface.
The following devices provide update functionalities for cforce plus
Lens Motor:
ARRI Wireless Compact Unit WCU-4
ARRI Active Motor Controller AMC-1
ARRI Universal Motor Controller UMC-4
cmotion compact hand unit
cmotion cworld
Please refer to the respective user manuals for further information.
WARNING!
Do not switch off power and do not remove the SD/Micro SD
card during the update as this may damage the cforce plus Lens
Motor!