Diagnostics Sub-Menu; Analog Output Configuration; Identifying The Output Type; Channel Menu Items - Honeywell SC Series Installation Instructions Manual

Signal Conditioning, Self Calibrating Digital Indicators

14.5.2 DIAGNOSTICS Sub-Menu

DAC FULL SCALE Menu Item
When this menu item is selected, the Analog Output of the chan-
nel is forced to its full-scale output, then DAC UPDATED is displayed.
This is useful when calibrating or trimming the readout connected
to the Analog Output.
AC ZERO SCALE Menu Item
When this menu item is selected, the Analog Output of the
channel is forced to its zero-scale output, then DAC UPDATED is
displayed. This is useful when calibrating or trimming the readout
connected to the Analog Output.

14.6 Analog Output Configuration

14.6.1 Identifying the Output Type

A DAC Output channel is available with one of two types of
digital-to-analog (DAC) outputs: voltage or current. You can de-
termine which type of output a channel has by one of three ways:
• Consulting the instrument's Customer Information Sheet
• Examining the SYSTEM MENU -> CONFIGURATION -> CHANNEL nn
TYPE menu item where nn is the number of the channel. If the
channel's type is VOLTAGE DAC, it has a voltage output. If the
channel's type is CURRENT DAC, it has a current output.
• Examining the channel's circuit board as shown in the figure
below.

Figure 14-1: Digital-to-Analog Output Jumper Locations

68 Honeywell Sensing and Control

14.6.2 Channel Menu Items

The Analog Output can be driven by any channel's track, peak or
valley value.
See the "Channel Menu" section earlier in this chapter for a com-
plete listing of SETUP menu items available on the DAC. SETUP
sub-menu.

14.6.3 Output Selection

Jumpers located on the channel's circuit board determine what
outputs are generated when the value selected to drive the Ana-
log Output (from the DAC. CHANNEL and DAC. SOURCE menu items)
equals the DAC. FULL SCALE and DAC. ZERO SCALE settings.
DAC. ZERO
SCALE
Output
CHANNELS WITH VOLTAGE OUTPUT
0 V to 5 V 2.5 Volts
±5 V 0 Volts
5 V 0 Volts
0 V to10 V 5 Volts
±10 V 0 Volts
CHANNELS WITH CURRENT OUTPUT
4 mA to 20 mA 4 mA
4 mA to 20 mA 12 mA
008-0608-00
Rev. G,
P31 J11
DAC. FULL
jumper jumper
SCALE
Output
5 Volts bottom open
5 Volts bottom closed
5 Volts top open
10 Volts middle open
10 Volts middle closed
20 mA bottom closed
20 mA bottom open