Apex Digital 5708009-C 用户手册

5-14

5708009-C

Advanced Energy

®

For units that have the pulsing option, pulsing output can be enabled or disabled. All 
pulsing settings are made only through the AE Bus Host port. If you are using Virtual 
Front Panel, see the Virtual Front Panel User Manual for an explanation of making 
these settings. If you are not using Virtual Front Panel, see “Host Port—RS-232 With 
AE Bus” on page 4-37 for information about communicating through the Host port 
and for the commands that control pulsing.

When pulsing is enabled, the Apex generates pulses of RF output based on frequency 
and duty-cycle settings. 

•

The frequency defines the length of pulsing cycles, that is, the amount of time 
between each RF-on event. Valid frequencies are between 150 Hz and 50,000 Hz.

•

The duty cycle sets the percentage of each pulsing cycle for which output is on. 
Values can be set from 10 to 90 percent. For example, if you set the duty cycle 
percentage to 15 percent, then during each pulsing cycle, output will be on 15 
percent of the time and off 85 percent of the time.

Note: Pulsing settings can not be changed when RF output is on. You must turn output 

off before changing any pulsing settings.

To enable pulsing, send a valid set of frequency and duty cycle settings to the Apex 
generator (see Host port commands 93 and 96 in Table 4-6. on page 4-45). Sending an 
invalid combination of settings disables pulsing. Host port commands 193 and 196 
read back these pulsing settings.

Pulsing settings are not saved when the Apex unit is turned off. To return pulsing 
settings to default, cycle power to the Apex unit.

This section of the manual provides information for the:
Pulsing option
PIN position 14, (A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17) option 1. 
(When identifying the PIN position, remember that the A at the beginning of 
the PIN is not counted as a position. The PIN option is the number or letter 
you should look for in the specified position.)