Справочник Пользователя для Pelco C580M
Pelco Manual C580M Rev D (9/97)
7
4.2 OPERATIONAL TEST — PT506-24A
The PT506-24A will add two modes of automatic pan operation to the PT506-24DT.
Once the PT506-24A is interconnected as shown in Figure 2, apply power to the
units. When the corresponding paddle switch to the station selected is in the down
or middle position, manual control of the pan functions can be obtained. All units
power-up in the “manual” mode. Once the switch is momentarily pressed “UP”, the
selected station goes into random scan mode. This causes scanning between lim-
its in an unpredictable pattern.
Once the PT506-24A is interconnected as shown in Figure 2, apply power to the
units. When the corresponding paddle switch to the station selected is in the down
or middle position, manual control of the pan functions can be obtained. All units
power-up in the “manual” mode. Once the switch is momentarily pressed “UP”, the
selected station goes into random scan mode. This causes scanning between lim-
its in an unpredictable pattern.
The duration of scan varies randomly between approximately 0 and 60 seconds. At
the completion of a scan period, a dwell (or rest) period occurs. This dwell period
varies randomly between about 4 seconds and an adjustable 60 to 900 seconds.
the completion of a scan period, a dwell (or rest) period occurs. This dwell period
varies randomly between about 4 seconds and an adjustable 60 to 900 seconds.
The PT506-24A is factory preset for a duty cycle of 50%. However, Random Scan
dwell time is adjustable by installation or removal of diodes CR9, 10, & 11 on
PCB1500530. Table A shows the available duty cycle combinations.
dwell time is adjustable by installation or removal of diodes CR9, 10, & 11 on
PCB1500530. Table A shows the available duty cycle combinations.
At the completion of a dwell period, another scan period is started. The direction of
this scan period is also randomly determined. When a pan limit is reached, scan
direction is reversed automatically.
this scan period is also randomly determined. When a pan limit is reached, scan
direction is reversed automatically.
NOTE:
Pressing “AUTO/RANDOM”
while in Random Scan causes a
shift to Auto Scan and starts the
half-hour timer. Similarly, pressing
“AUTO-RANDOM” while in Auto
Scan causes a shift to Random
Scan and zeros the half-hour timer.
shift to Auto Scan and starts the
half-hour timer. Similarly, pressing
“AUTO-RANDOM” while in Auto
Scan causes a shift to Random
Scan and zeros the half-hour timer.
CONTINUOUS AUTO SCAN
For continuous AUTO SCAN, press “AUTO/RANDOM” a second time. After approxi-
mately one half-hour in Auto Scan, the unit automatically reverts to Random Scan.
mately one half-hour in Auto Scan, the unit automatically reverts to Random Scan.
Manual operation can be activated by moving the joystick while the unit is in Auto or
Random Scan.
Random Scan.
Table A. PT506-24A Duty Cycle Combinations
CR 11
CR 9
CR 10
DUTY CYCLE
0
0
0
50.00%
0
0
1
25.00%
0
1
0
17.00%
0
1
1
12.50%
1
0
0
10.00%
1
0
1
8.00%
1
1
0
7.00%
1
1
1
6.25%
Where: 1 = Diode in circuit
0 = Diode out of circuit