5
9900-1BC Batch Controller Manual
Terminals 1-2: DC Power
• Required by the instrument
• Provides power to sensors, relays and the LCD backlight
Terminals 3-4: 4 to 20 mA
• Passive 4 to 20 mA output
Terminals 5-6: Open Collector
• Software selectable for Normally Open or Normally Closed
Terminals 7-10: Digital (S
3
L)/Frequency Input
• For sensor wiring
• PC COMM wiring
The 9900-1BC requires
regulated 10.8 to 35.2 VDC
(24 VDC nominal) from
an external power supply.
Maximum current draw is
300 mA.
DC Power
Loop V
oltage
1
2
3
4
5
6
10
9
7 8
OC+
OC–
D
AT
A
GND
SHLD
PWR +
PWR –
Loop +
Loop –
V+
Digital (S
3
L) /
Frequency
Power
Connect power and
open collector wire
plug here as shown
on pages 8 and 9.
Connect sensor wire plug
here as shown on page 7.
Terminal Identification
