Martin Roboscan Pro 1220, Operator'S Manual, Page: 15 / 39

R o b o s c a n Pr o 1 2 2 0 - o p e ra t o r ’ s m a n u a l 15
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R E M O T E L Y C O N T R O L L A B L E
F U N C T I O N S
This section briefly describes the various Pro 1220 functions that can be remotely controlled via the
serial data input on the fixture.
L A M P
The Pro 1220 uses a 1200 Watt discharge lamp - the HMI 1200 from Osram or the MSR 1200 from
Philips. Both lamps provide a high light output throughout their rated lamp lives of 750 hours. The
color temperature is 5600 K for the MSR and 6000 K for the HMI.
A high-power relay inside the Pro 1220 allows you to turn the lamp on and off via your controller
and without affecting the rest of the fixture. It is important to note that after switching on the Pro
1220, the lamp will remain off until you send the 'Lamp Power On' command from the controller.
Due to the surge of current that is used when starting the lamp, it is recommended that you program
a 'Lamp Power On' sequence that will turn on the lamps one at a time with an interval in between
each start of approximately 5 seconds.
It is also important to note that both lamps are cold restrike types, meaning that they have to be
'cold' before re-striking is possible. For this reason, you will have to wait 8 minutes after having
turned off the lamp before you can turn it back on again. If you attempt to switch on the lamp within
8 minutes after having switched it off, the Pro 1220 will store the 'Lamp Power On' information,
and ignite the lamp when the 8 minute period has expired. The message 'Hot' will appear on the
control module display at the front end of the Pro 1220. If using a DMX controller to power off the
lamp you will have to send the value for a least 5 seconds.
NOTE: To avoid accidentally switching off the lamp, the 'Lamp Off' feature is not supported by
DMX unless you enable it on the control module. Please read the section 5 - 'THE PRO 1220 CON-
TROL MODULE'.
M O V E M E N T
The pan/tilt mirror on the Pro 1220 allows you to move the beam to any desired position within the
range of 176 by 85 degrees and the micro-stepping control of the motors ensures smooth and accu-
rate movement at all speeds. 6240 positions on pan and 1504 positions on tilt can be reached when
using either a Martin controller or 16-bit pan/tilt tracking on DMX. Selecting the B/O speed option
will blackout the fixture whilst moving the mirror.