User manual

18 GMC-I Messtechnik GmbH
Additional KONSTANTER functions can be selected with the
<SELECT>, <FUNCTION>, <RCL> and <SAVE> keys. The
respective measured value or setting parameter appears at the
right-hand display in this case.
[10] Rotary Knob for Adjusting Current <Iset/A>
The same applies to this rotary knob, with reference to output
current, as is also the case with the voltage adjusting knob [5].
[11] Parameter Adjusting Keys  and 
The <> (increment) and <> (decrement) keys are used to
select or adjust all KONSTANTER functions and their
parameters.
☞ Detailed explanations are included in chapters 4.6, 4.7
and 4.14.
[12] Interface Displays: REMOTE, ADDR, SRQ, LOCKED
The respectively illuminated LED indicates the current
operating state of the computer interface:
REMOTE on: The KONSTANTER is being remote
controlled, front panel controls are
disabled.
ADDR/DATA on: The KONSTANTER has been addressed
and is receiving or transmitting data
(applies to IEC bus operation only).
SRQ/STS on: The KONSTANTER is transmitting a service
request.
LOCKED/SEQ on: Indicates that manual controls are disabled:
Front panel controls are disabled and
protected against unauthorized or
inadvertent change.
This display only applies to disabling of the
front panel controls by means of manual
operation or a control signal applied to the
TRIGGER input (for T_MODE LLO). It does not
indicate disabling of manual switching to
local control by means of the IEC bus LOCAL
LOCKOUT command.
blinking: Sequence mode display in
disabled and enabled state:
– Slow blinking: sequence in hold status
– Fast blinking: sequence in run status
Sequence mode display and disabling:
LLO is displayed when any key or rotary
knob is activated (
l ocal l ock o ut).
[13] Function Selection Key <SELECT>
 Selection of displayable measured values
 Resolution of display values and setting values
☞ Detailed explanations are included in chapters 4.6, 4.7
and 4.8.
[14] Recall Key <RCL>
Recall of stored KONSTANTER settings, value pairs (Uset and
Iset) and any associated dwell time setting for possible
readjustment.
☞ Detailed explanations are included in chapter 4.10.
[15] <ENTER> Key
The <ENTER> key is used for several functions:
 Execute selected functions
 Acknowledge selected text parameters
 Go to the next lowest function menu level
 Switch the display from Uout / Iout to Uset / Iset with active
cursor
Setpoint changes are acknowledged with the <ENTER> key
in this mode.
 Move cursor back and forth between Uset and Iset in the
Uset / Iset display
 Activate the recalled memory location
☞ Detailed explanations are included in chapters 4.6, 4.7
and 4.12.
[16] <CE/LOCAL> Key
This key has several functions:
 Abort an operation
 Switching from remote to local control
 Disable front panel controls
 In combination with special functions
☞ Detailed explanations are included in chapter 4.13.
[17] Save Key <SAVE>
 Saves device settings, value pairs (Uset and Iset) and any
associated dwell time. In the manual mode, this key also
fulfills the function of the STORE computer command.
 Disabling of front panel controls in order to prevent
inadvertent or unauthorized changes to settings is only
possible in combination with the <CE/LOCAL> key.
☞ Detailed explanations are included in chapter 4.9.
[18] Function Selection Key <FUNCTION>
No special key is assigned to device functions which are
normally seldom adjusted or used. These functions are
controlled in a menu-driven fashion.
☞ A description of the menu and the procedure for setting all
functions and parameters is included in chapter 4.7.
[19] RS 232 Interface
☞ Detailed explanations regarding remote control of
KONSTANTER functions via the RS 232 serial interface are
included in chapter 2.1.3.
☞ Interface-specific commands are included in chapter 6.4.
[20] IEEE 488 Bus Connection
Connection for remote control of KONSTANTER functions:
☞ Detailed explanations are included in chapter 2.1.1.
☞ Interface-specific commands are included in chapter 6.4.
Attention!
!
The electrical contacts of all interfaces are connected to
components which may be damaged by electrostatic
discharge. Neutralize potential differences between
yourself and the device by grasping the housing before
touching these contacts!