3A SERIES
OPERATION MANUAL
Entire Contents Copyright
2014 by Adaptive Power Systems, Inc. (APS) • All Rights Reserved • No reproduction without written authorization from APS.
3A SERIES AC & DC LOAD OPERATION MANUAL
Page 25 of 56
6.2
User Controls, Displays and Connectors
The following user controls, indicator and displays are common to all 3A Series load modules.
The purpose and function of each control and indicator is explained in the table below. Refer to
figure for the location of each control and indicator.
1.
Model Number and ranges
2.
Go/NoGo indicator
illuminates if upper or lower
limit settings are exceeded
3.
Operating Mode Indicators
and MODE key
4.
REMOTE state indicator
5.
Multi-purpose 4½ digit
display – Voltage or Power
6.
Multi-purpose 4½ digit
display – Current or
Apparent Power
7.
Preset Mode On/Off key
Controls settings shown on
LED display
8.
LOAD ON/OFF button and
indicator
9.
WATT display mode On/Off
key and indicator
10.
Level A or B Setting
Toggle key and indicator
11.
Limit Mode On/Off and
indicator
12.
Internal or External
Voltage Sense Mode
selection key and
indicator
13.
Rough and Fine Setting
Adjustment Up/Down
keys
14.
Crest Factor Selection
keys
15.
Frequency, BANK and
SYNC setting key
16.
Load Input Terminals
17.
External Voltage Sense
Connector
18.
Current Monitor Output
BNC.
Figure 6-2: Front Panel User Controls and Indicators
The various controls and indicators are explained in more detail in the table below. The Item
numbers correspond to the indices in Figure 6-2 above.
Key # Description
1
Indicates the
model number
and key performance specifications of the load.
2
Go/NoGo
indicator illuminates when upper or lower limit settings for Voltage, Current, Power or
VA are exceeded.
3
MODE key and annunciators
There are three operating modes can be selected by pressing the "MODE" key.
The sequence is Constant Current (CC), Linear Constant Current (LIN) and Constant Resistance
(CR) and then repeats. When pressing the "MODE" key, the CC, LIN and CR mode indicator will
be lit respectively when the appropriate operating mode is selected.
The operating theorem of CC, LIN and CR mode is described in Section 3.2, “
”.
4
The Remote Indicator (REM) is used to indicate the status of remote operation. Front panel
operation is locked out while the remote annunciator is ON. In case of Local mode or manual
operation, the Remote annunciator is OFF
5
This is the upper 4½ digit multifunction display. It’s function depends on the operating mode the
load is in as described in the next rows:
Default Condition
This display will show the voltage at the load connection (internal
sense) or at the load (external sense) Vrms.
Summary of Contents for 3A Series
Page 55: ...3A SERIES OPERATION MANUAL ...
