ACU-RITE DRO 200E - Manual (Page 20)

READOUT OPERATIONS
DRO 200E
16
Dwell
The two DWELL parameters tell the EDM control to hold at the cut depth to obtain a
better finish or to allow an orbiter to operate. Press the
d key to view or change the
parameters.
Timed Dwell
The D-TIME, or Dwell Time parameter causes the ram to hold a cut depth for the
number of minutes that you enter.
To enter or change the dwell time use the keypad to enter the minutes you would
like the EDM to dwell. The time is displayed in minutes and fractions of minutes
(i. e. 1.0167 = 1 minute, 1 second, or 1.5 = 1 minute 30 seconds).
To set a Dwell time:
1. Press the
d
key. The display will read “DWELL TIME MINUTES” and then
“D TIME”.
2. Press the Y key to toggle the D-TIME function “ON” or “OFF”, and use the key
pad to enter or change the Dwell time, then press E . (Pressing E saves the
information and advances you to the next parameter.)
3. Set Sparkout condition, as shown below, or press the d key to return to the
EDM/DRO display.
Dwell Until Sparkout
With the optional ACU-RITE spark detector connected to the readout, you can set the
dwell to last until sparkout is detected. The sparkout condition is determined by
measuring the time between sparks. When this time becomes long enough (greater
than the S-TIME parameter), the dwell cycle ends and the ram retracts. Use the
Y
key to turn the S-TIME parameter on or off. When it’s on, the number of minutes can
be entered that defines sparkout
1. Press the
d
key then the X key the display will read “Sparkout time
minutes” and then “S-TIME”.
2. Press the Y key to toggle this parameter “ON” or“OFF”, and use the keypad to
enter the time between sparks you wish to monitor. For example: .0167 = 1 sec-
ond, .5 = 30 seconds, then press
E . (Pressing E saves the information and
advances you to the next parameter.)
Both timed dwell and sparkout can be enabled at the same time. Whichever occurs
first will terminate the dwell cycle.