® Sensor Touring Rack (SP Series) CEM to CEM3 Retrofit Manual Revision B C o p y r i g h t © E le c tr o n i c T h e a t r e C o n t r o l s , I n c . All Rights reserved. P r o d u c t in f o r m a t i on a n d s p e c i f i c a t i o n s s u bj e c t t o c h a n g e .
E T C p e r m i t s t h e r e p r o d u c t i o n o f m a t e r i a l s i n t h i s m a n u a l o n l y f o r n o n - c o m m er c i a l p u r p o s e s . A ll o t h e r r ig h t s a r e r e s e r v e d b y E T C . ET C ®, a n d S e n s o r ® a r e r e g i s t e r e d t r ad e m a r k s o f E l e c t r o n i c T h e a t r e C o n tr o l s , I nc . i n t h e U n i t e d S t a t e s a n d o th e r c o u n t r i e s .
Introduction This manual is intended to guide ETC Service Technicians through the process of upgrading existing Sensor® touring racks to Sensor3 touring racks with a CEM3 control module. This manual covers SP48 and SP96 touring racks, including 96-dimmer small frame racks (known as “double-small” racks). Contacting Technical Services If you have questions about the retrofit process that are not answered in this manual, please contact ETC Technical Services.
Safety Please note the following safety warnings before use: • Disconnect power from the racks before all maintenance. WARNING: Dimmer racks without an accessible power disconnect device cannot be serviced safely. Before removing dimmer or control modules for service, deenergize main feed to dimmer rack and follow appropriate Lockout/Tagout procedures as described in NFPA Standard 70E.
Section 1 Unpack and Organize The table below lists the parts and components needed to retrofit a Sensor touring rack (SP48, 96, or 96 “Double Small”) to become a Sensor3 rack with a CEM3. Each part is listed to reflect the different quantities for the different kits and types of racks.
Additional Line Items Additional Items SP48 SP96 SP96 “Double Small” SP96 “Double Small” Control Panel Outlet Kit 7143K1004 (Optional) SP48/96 Door Baffle Replacement Kit 7143A2002 SP96 “Double Small” Right Baffle Replacement Kit 7143A2005 SP48/96 Left Door Replacement Kit 7143B3004 SP96 Right Door Replacement Kit 7143B3007 Sensor3 AF Card (Optional) 7150B5623 CEM3 7140A1000 0 0 1* 1* 2* 1* 0 0 1* 1* 2* 1* 0 0 1* 2 4 4 1 1 1 * Need/quantity based on specific rack or door type.
Section 2 The Retrofit Rack Geography Throughout this manual directions are given which refer to the front, back, left, and right sides of the rack. For clarification, these references are detailed below. Front - face of the rack with the dimmer modules and CEM. Back - face of the rack with output and control connections (VEAM, DMX). Left - when facing the front of the rack, this is the side to your left. Right - when facing the front of the rack, this is the side to your right.
Remove the Old Unscrew the dimmer output edge connectors from the backplane metal. CEM SP96 Ribbon Cable Layout 1 1 2 9 10 11 12 13 14 (1-24) 8 1 7 2 3 4 J3 6 J1 5 5 6 7 8 9 10 11 12 13 14 Note: (73-96) J2 (25-48) 4 J2 4 3 J1 CEM SP48 Ribbon Cable Layout (49-72) 2 3 2 1 Step 1: J3 (1-24) (25-48) The order/layout of the dimmer output edge connectors is different on the CEM3 backplane.
Control Input Panel Replacement Step 1: From the open left side of the rack, remove the control data ribbon cable from the retainer clips inside the rack. Step 2: Remove the tour guides on the rear of the rack by loosening (not removing) the three screws behind each tour guide. Once the screws are loose, slide the tour guide toward the center of the rack to remove it. Keep track of the orientation and position of the tour guides to make sure they are returned to their respective locations.
Note: Early model CEM touring racks were discreetly wired and did not have a PCB containing DMX in, thru, and termination. If you have one of these racks, after removing the control input panel, you will need to disconnect two (SP48) or three (SP96) red and black twisted pairs from the backplane. One runs to the old control input panel and may be discarded after removal. The other runs from pins 5 and 7 on the old backplane beacon connector to the front beacon (dimmer module side of the rack).
the panel a bit loose for the next step. Note: If your rack is an SP96 “Double Small” Frame without a convenience outlet in the control input panel, it will be necessary to run the wiring for the new breaker and convenience outlet to the A phase bar, neutral, and ground locations in the rack. a: Run the white neutral convenience outlet wire to any existing slot on a neutral bus. b: Run the green ground wire to any existing slot on a ground bus.
Power Termination Step 1: Follow the path of the existing J1 power wiring and clip the first wire-tie holding the J1 power connector in place. This will make it easier to move the harness while you work. Step 2: Install the power adapter harness to the edge connector (straight thru PCB) to the old power connector (match the wire colors) . The PCB is the same on both sides, top and bottom. Oh, I wish I were an Oscar Meyer® wiener...
Data Cabling Preparation Step 1: Identify the different dimmer output ribbon cable transition cards. An SP48 will only use a single upper and lower card. This is an “Upper” transition board (7150B5007) 2 1 4 3 This is a “Lower” transition board (7150B5006) Note: There are two different types. An “upper” card and a “lower” card. The transition card is marked with both the type and which side should be up when installed.
Backplane Settings Upgrade kit backplanes ship from the factory with all DIP switches in the off (down) position. You will have to set the DIP switches on the new backplane to match your rack. You will also have to verify the termination switch settings. Set termination to “Off” (middle position) Set DIP switches a: Set both termination switches to “Off” (middle position).
Spider Board Retrofit (only SP96 Large or “Double Small”) Sensor 96 dimmer touring racks have a “Spider board” installed, which assisted in phase balancing. This functionality is now handled by CEM3 and the spider board must be replaced with a new board for proper dimming functionality. In a double small rack, it is best to access the spider board through the opened left side of the rack.
M a k e C o n n e c t i o n s a n d I ns t a l l t h e N e w B a c k p l a n e Step 1: Install the dimmer output CEM+ Ribbon Cable Layout 2 4 ribbon cables/transition cards. Open the black retaining tabs for each 1 3 connector until they are at a Control data (73-96) (25-48) 45° angle to the backplane. ribbon cable header Press the transition cards (49-72) (1-24) into their respective locations until the tabs lock in place at a 90° angle to the backplane.
Step 11: Dress the control data ribbon cable, the beacon cable and the Ethernet cable through the cable clips neatly across the top of the rack. The cables should be supported every 6” to 8” from the control input panel to the backplane. You may need to replace some of the original clips if they are no longer attached to the rack. Use the provided ribbon cable mounts (ETC Part# HW726) as needed.
Upgrading the Rack Door Depending on the kit you ordered, you may be replacing the rack door or you may only be replacing the baffle at the top of the existing door. If you are replacing the door, and your old door has a cylindrical lock without a flip lever handle, you will need to remove that lock and install it in the new door that you received. If you would like a new lock, you may purchase one separately. If your rack has the flip lever handle, you do not need to remove it.
Finish Up Remove the CEM baffle from the spare CEM slot (if available). It is held by two screws, one in each upper side corner, similar to the backplane screws. You must bend the baffle to get it out of the spare module slot. Step 2: Install the new CEM3 baffle into the spare module slot using the screws and collars provided in the kit. Step 3: Install the rack filter door(s) on the rack by pushing down on the tab in the hinged corner and sliding the door back in place.
18 CEM3 Sensor Touring Rack Retrofit Manual
Corporate Headquarters 3031 Pleasant View Road, P.O.
