KEPCO MBT Series - Manual (Page 114)

4-8
MBTSVC111609
4.1.13.2 SET OUTPUT CURRENT/VOLTAGE LIMIT (CURRENT MODE) When operating in the Cur-
rent mode, output current can be set in three different ways:
NOTE When the output is Disabled, the following controls affect the programmed output and
limit values for voltage and current.
1. The CURRENT control is an optical encoder that digitally increments (clockwise rotation)
or decrements (counterclockwise rotation) the programmed current value, which will be
displayed on the LCD display.
2. For MR and MGR models in the commanded current mode, the slew keys ( , ) on the
keypad also increment the current value displayed on the LCD display; the increment is
programmable (see PAR. 3.2.2.6).
3. Pressing the I
adj
key, then using the numeric keypad to enter the precise numeric value for
output voltage.
Voltage limit can be set in two ways:
1. The VOLTAGE control is an optical encoder that digitally increments (clockwise rotation) or
decrements (counterclockwise rotation) the programmed voltage limit value which will not
be displayed on the LCD display. The new voltage limit can be viewed by using the STA-
TUS function (SHIFT then “.” key).
2. Pressing the V
adj
key, then using the numeric keypad to enter the precise numeric value for
voltage limit.
4.1.13.3 SET VOLTAGE/CURRENT MODE M and MG Models cannot be set to commanded Current
mode from the front panel.
For MR and MGR Models, pressing the SHIFT key then either the Vadj or Iadj key allows selec-
tion of commanded Voltage or commanded Current Mode, respectively.
NOTE: Refer to PAR.s 3.1.1 and 3.1.2 for an explanation of actual and commanded modes.
4.1.13.4 OUTPUT ENABLE/DISABLE Separate DC ON and DC OFF keys are used to enable/disable
the output (see PAR. 4.1.12).
4.1.13.5 PROGRAMMABLE PARAMETERS The MBT Power Supply keyboard offers a means of defin-
ing the operating mode and establishing specific operating parameters for specific intervals of
time. The keypad is used to create up to ten separate programs. Each program consists of a
series of steps that define the following:
(M, MG):
1. Output voltage and current limit or output current and voltage limit
2. The active time period for the step.
(MR, MGR):
1. Output voltage and current limit or output current and voltage limit
2. The active time period for the step
3. Commanded mode (voltage/current)
4. Polarity reversed or non-reversed
5. Output enabled/disabled.