User manual

GMC-I Messtechnik GmbH 29
4.7.2 AnIF – “Analog Interface” Function Group
The analog interface allows for remote control of the
KONSTANTER. A floating digital control input with several
selection functions (TRG IN+ / TRG IN-) is available in addition to
analog setting options (chapter 5).
trG – Function Selection for Trigger Input
Functions
• Floating optocoupler input ( TRG IN ) at the analog interface
• The trigger input is controlled with a digital signal
(low: 0 V, high: 4 ... 26 V).
• Response time is approximately 1 to 15 ms.
Setting Parameters
☞ OFF: Trigger input function is deactivated, signals at the
trigger input are ignored.
☞ OUT: Trigger input influences OUTPUT: output On / Off
☞ RCL: Memory recall from defined start to defined stop address
(step-by-step sequence control)
☞ SEQ: Control execution of the SEQUENCE function
SEQUENCE: Sequential execution of specified values for Iset,
Uset and dwell time (see also chapter 4.7.3).
The SEQUENCE function group must be set to SEQUENCE ON
for this function.
☞ LLO LOCAL LOCKED: Operation via front panel controls is
disabled.
☞ UI_
Min-Max function: Storage of Min-Max values for U and I is
controlled by the trigger,
Min-Max function active, (UI _
ON)
☞ The status of the trG function is not saved as a device setting
with the SAVE key.
Settings
☞ Procedure for configuring trG ➙ see also chapter 4.7
☞ The trG display appears in the AnIF menu along with a related
text parameter.
☞ Default setting after RESET (*RST):
unchanged
Figure 4.7.2 Path to Selection of the trG Text Parameter
TRIGGER Signal Influence on OUTPUT Status
Low Status depends upon manual setting or
programming command.
LOW _
HIGH OUTPUT remains OFF or
OUTPUT is switched OFF.
HIGH OUTPUT is in the OFF state and cannot be
switched on – neither manually nor with a
programming command.
HIGH
 _ LOW OUTPUT is activated,
Except in the event of OTP or OVP.
TRIGGER Signal Influence on Step-by-Step Control
Edge
Low  High
Start trigger signal
HIGH • The trigger signal is a high pulse with a
duration of 11 to 800 ms.
• A high pulse with a duration > 1.0 s
resets the address counter to the start
address at any point in time, and
execution begins with the next trigger
signal.
Edge
High  Low
The high  low edge of the (short) trigger
signal results in step-by-step control of the
currently selected sequence, regardless of
the specified time and number of
repetitions.
Recall of the memory’s contents begins
with the START address. Each trigger
signal increases the address by 1, until the
STOP address is reached. The next pulse
once again causes execution of the
contents of the START address.
TRIGGER Signal Influence on SEQUENCE Status
LOW _
HIGH The SEQUENCE function is started beginning
with the start address,
SEQUENCE GO.
HIGH _ LOW Ends sequence execution by jumping to
the stop address.
TRIGGER Signal Influence on Front Panel Controls
Low All front panel controls are functional.
HIGH All front panel controls are disabled,
except for the mains switch, activation is
not possible with the LOCAL key.
TRIGGER Signal Influence on Min-Max Status
LOW The Min-Max function is active.
LOW _
HIGH The Min-Max function is deactivated.
Values in the in Min-Max memories remain
unchanged.
HIGH The Min-Max function is inactive.
HIGH
_LOW Values in the Min-Max memories are reset
and replaced with momentary output
values. The Min-Max function is activated.
Select the text parameter
from an options loop
From the AniF function group
*
ENTER
CE/LOCAL
FUNCTION SAVE
RCL
Uset/Iset FUNCTION
MENU
SAVE
MENU
RCL
MENU
FUNCTION
MENU
Activate
the setting
Abort
without change