PRG VL6C+ - Manual (Page 13)

VL6C+ ™ SPOT LUMINAIRE USER MANUAL 5
Upgrade Summary
The VL6C+ Spot Luminaire features many improvements over the standard VL6C Luminaire, both to the exterior and
interior components. The following is a complete summary of improvements found in the VL6C+™ Spot Luminaire:
+ Reduced luminaire head temperatures to improve reliability of the optical mechanisms by increasing air flow
through the head assembly. This improvement was accomplished by installing new air ducting, a metal foam air
filter and replacing an existing fan with a higher CFM fan.
+ Increased reliability of the lamp strike. This improvement was accomplished by installing a new solid state ignitor
and relocating it from a high temperature area in the head assembly to a low temperature area in the yoke. This
change also improves access to the ignitor and reduces hot restrike time from 8 minutes (VL6C) to 1 minute
(VL6C+).
+ Increased reliability of the Controller and Auxiliary PCBs. This improvement was accomplished by adding a
centrifugal blower to cool the PCB components and ventilation holes to improve air flow. The PCB RJ-45
connectors were also replaced with improved Molex interconnect cable assemblies.
+ Reduced PCB driver failures. This improvement was accomplished by installing a new 24VDC cable assembly to
protect the motor drivers from failing in the event the Yoke Termination PCB fuse blows.
+ Increased reliability of Pan and Tilt functions. This improvement was accomplished by retrofitting the pan/tilt
mechanisms with new clutches and encoders, replacing the pan/tilt cable assemblies and installing a newly
designed pan stop which prevents sticking.
+ Increased reliability of Yoke and Motor Cable Harnesses. This improvement was accomplished by designing new
harnesses with highly stranded 24AWG PVC wire which makes a more reliable connection in the MTA connectors.
+ Improved motor reliability and function. This improvement was accomplished by replacing the connectors on all
motors.
+ Improved yoke covers. This improvement was accomplished by installing new yoke sheet metal which not only
accommodates the relocation of PCB components, but adds support to the yoke covers which will prevent
damage to them during normal use. Ventilation holes have been added to the yoke leg for PCB cooling and air
flow, along with heavy duty yoke covers and new safety tethers to prevent covers from falling off.
+ Added reset switch. A "soft reset" can be accomplished using the new reset switch located in the yoke leg.
During a soft reset, the lamp will not be extinguished, eliminating the need to wait for the lamp to cool down
before restriking.
+ Added lamp douse switch to yoke cross-member. The switch should be used to douse the arc lamp before
disconnecting the pigtail cable. This will prevent damage to the contacts in the CPC connector, which can be
caused by drawing an arc during disconnect.