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GMC-I Gossen-Metrawatt GmbH
23
4.3 Switching the Power Output On and Off
The
<OUTPUT>
key [7] (chapter 3 ) functions independently of the
current operating state of the KONSTANTER.
Further details regarding how the device reacts when the
<
OUTPUT
> key [7] is activated are included in chapter 3.
Closed Loop Control Mode
The power output can be activated or deactivated by pressing the
<OUTPUT>
key [7]
.
OUTPUT OFF
↔
OUTPUT ON
REMOTE
status (remote control)
[25],
The <
OUTPUT
> key is disabled and has no function.
LOCAL LOCKED
status (front panel controls disabled)
[17],
The <
OUTPUT
> key is disabled and has no function.
trG out (T_MODE OUT) and External Trigger Active
The output can be activated and deactivated with the trigger
signal (trG parameter OUT selected).
If the power output has been disabled by applying an
external
trigger signal
to the analog interface, it cannot be switched on,
neither by means of a command nor with the keys. The
corresponding command is not executed, and bit 4 in event
register B is set (output-on error). “Err 25” also appears briefly
at the display as a warning in the event of manual operation.
The status of the power output
[33]
) is indicated by
the
red LED
above the <
OUTPUT
> key:
LED on
= output activated
LED off
= output deactivated
In the case of
OUTPUT OFF
, the control mode displays are also
switched off
(
[6]
).
If the output has be deactivated as a result of
overtemperature
protection
, the
red OTP LED
[17]
in the control mode display
lights up. The output cannot be activated until the
KONSTANTER has returned to its normal operating
temperature.
If the
Pon RCL
function is active, the output is automatically
reactivated after the device has returned to its normal
operating temperature.
Functions which may influence the status of the output
include:
4.4 Limiting the Allowable Working Range: Ulim, Ilim
Allowable setting ranges for voltage and current can be limited in
order to assure ideal matching to the working ranges of the
connected power consumer. The Ulim and Ilim setting functions
are provided to this end.
Setting options can be selected with the respective <SELECT>
key. Setting resolution is selected with the <RESOL> key. The
setting itself is entered with the arrow keys. New settings become
immediately active.
Attention!
These settings represent so-called soft limits. This means that
values which lie within these limits can be selected both manually
and via the computer interface, and that a corresponding error
message is otherwise generated.
Attention!
The actual output quantity is the sum of the digitally selected
setpoint value and the setpoint value specified via the analog
interface. This makes it possible to select values which exceed
the specified soft limit.
Ulim – Setting the Upper Voltage Limit Value
Function
•
Upper setting limit
(soft limit) for
Uset
•
Prevents inadvertent violation of the maximum voltage value
when adjusting
Uset.
•
Protection
for the connected power consumer
•
Ulim
has higher priority than
Uset.
•
Manual and computer-aided settings for
Uset
may not exceed
Ulim
.
•
Ulim
cannot be set to a value which is less than a previously
selected
Uset
value.
Uset
must be reduced far enough to allow
for the new
Ulim
setting.
Settings
The setting procedure is described in chapter 4.8.1.
Ilim – Setting the Upper Current Limit Value
Function
•
Upper setting limit
(soft limit) for
Iset
•
Prevents inadvertent violation of the maximum current value
when adjusting
Iset.
•
Protection
for the connected power consumer
•
Ilim
has higher priority than
Iset.
•
Manual and computer-aided settings for
Iset
may not exceed
Ilim
.
•
Ilim
cannot be set to a value which is less than current
setpoint
Iset
.
Iset
must be reduced far enough to allow for the
new
Ilim
setting.
Settings
The setting procedure is described in chapter 4.8.1.
Functions
Meaning
Manual
Operation
Remote
Operation
OVP (OVSEt)
Overvoltage
protection
OCP
Overcurrent
protection
Pon (POWER_ON)
SEq
Sequence
trG (T_MODE)
Содержание 62 N Series
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