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6-8 REMOTE/AUTOMATED CONTROL
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Tel: 970-495-0187, Fax: 970-484-9350, Internet: www.ionsources.com
Pin
Number
Description
15
Gas Channel 4 shut off. Connecting this pin to common pin 7 or 8 will
disable the gas
fl
ow to the MFC and deactivate the additional MFC
relay for channel 4, regardless of the input
fl
ow setting.
16
Program Select 0. This pin is the 0 bit for selecting programs 1
through 4 using negative logic levels of 0 and 5 volts or 8, the remote
setpoints are enabled and the four programs are not used.
18
DB-37 control select. The pin is connected to common pin 7 or 8 to
enable the DB-37 connector. When the connection is left open, the
DB-25 is active.
19
Run Fault. When the Auto Controller is enabled, this pin will indicate a
run fault if it is at a high logic level of 5 volts. If there is no run fault, then
this pin will be at a low logic level of 0 volts. Referenced to pin 7 or 8.
20
Discharge Current Output. 0-5 volts corresponds with 0 to the maxi-
mum level of discharge current in amps for the Discharge Power Sup-
ply that is being used.
21
Discharge Voltage Output. 0-5 volts corresponds with 0 to the maxi-
mum level of discharge voltage in volts for the Discharge Power Sup-
ply that is being used.
22
Discharge Current Setpoint. 0-5 volts corresponds with 0 to the maxi-
mum level of discharge current in amps for the Discharge Power Sup-
ply that is being used.
23
Beam Good 1. Shorted to pin 24 when the operating parameters are
in range.
24
Beam Good 2. Shorted to pin 23 when the operating parameters are
in range.
25
Keeper voltage output. 0-5 volts corresponds with 0-800 volts. Refer-
enced to common pin 7 or 8.
26
Keeper Current Setpoint. 0-5 volts corresponds with 0 – 2 amps. This
should usually be set to 1.5 amps
27
Gas
fl
ow Output common. Return for gas
fl
ow output pins 8, 9, 28 and
29.
28
Channel 2 gas
fl
ow Output. 0-5 volt corresponds with 0 to the maxi-
mum output in sccm for the channel 2 MFC. Referenced to pin 27.
29
Channel 4 gas
fl
ow Output. 0-5 volt corresponds with 0 to the maxi-
mum output in sccm for the channel 4 MFC. Referenced to pin 27.
30
Channel 2 setpoint. 0-5 volts corresponds with 0 to the maximum out-
put for the MFC connected to Channel 2. Referenced to pin 13.