Martin MAC 300 Bedienungsanleitung PDF herunterladen (Seite 17)

Control panel operations 17

- Selecting Outside keeps pan and tilt outside the limits you set – i.e. angles define a ‘no-go zone’.

- Limits are not activated until the head is panned and tilted into its safe zone or out of its no-go zone.

- When pan/tilt limits are active, the PAN/TILT light at the bottom right of the display lights yellow.

See Figure 10. To limit pan so that it stays inside a safe zone 20° either side of fully forward and limit tilt so

that it stays inside a safe zone 18° either side of fully forward, for example:

1. Set PAN MINIMUM to 70°.

2. Set PAN MAXIMUM to 110°.

3. Set TILT MINIMUM to +72°.

4. Set TILT MAXIMUM to +108°.

5. Set P/T LIMIT AREA to Inside.

Important! Regardless of the pan and tilt limits you set, when you power the fixture off, the head will sink under

gravity to the nearest rest position (e.g. with the lens pointing vertically downwards if the fixture is

hanging in a rig, or to one side if the fixture is standing fastened to a horizontal surface). When you

power the fixture on, the head will not move until the fixture receives a pan or tilt command. When a

command is received, if the head’s rest position is outside its pan/tilt limits, the head will move

slowly until it is within its limits. This feature reduces the risk of damage caused by a collision.

• LINKED ZOOM/FOCUS sets focus to automatically adjust when you use the zoom effect (see “Focus and

zoom” on page 24).

• LAMP COOLING sets the lamp cooling effect to 50% or 80%. The color temperature of the lamp and

lamp performance towards the end of the lamp life vary slightly with the level of lamp cooling applied. The

default level is 80%, which is recommended for optimum performance over the full life of the lamp. Setting

to 50% gives a slightly different color temperature but accelerates the gradual reduction in output which is

normal over the lifetime of a discharge lamp.

• FAN CLEAN MODE gives three options for automatically clearing dirt from fans:

- Off sets fans to normal operation with no fan cleaning function.

- Auto sets fans to normal operation, but if a fan error is detected, the fan that has reported an error

speeds up to 100% for a short period and then returns to normal operation. If the fan error is still

detected after three attempts at cleaning, the fan returns to normal operation but continues to report a

fan error. This feature works independently for each of the fans. Attempts at cleaning are reset to zero if

the fixture is reset or if FAN CLEAN MODE is updated.

- Forced sets all fans to 100% speed until another FAN CLEAN MODE setting is selected.

This feature does not eliminate the need to inspect and clean cooling fans at regular intervals (see

“Cleaning” on page 30).

Figure 10: Pan/Tilt limit settings

+72°

+90°

+108°

Tilt safe zone

Inside, min. +72°, max. +108°

Pan safe zone

Inside, min. +70°, max. +110°

Safe zone

+70°

+90°

+110°

Safe zone

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