iseg SHQ 122, Руководство оператора

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S p e z i a l e l e k t r o n i k G m b H
iseg Spezialelektronik GmbH Email: sales@iseg-hv.de Phone ++ 49 (0)351 / 26 996 – 0
Bautzner Landstr 23 http://www.iseg-hv.com Fax ++ 49 (0)351 / 26 996 – 21
D - 01454 Radeberg / Rossendorf Germany 13
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external interrupt signal INHIBIT
The INHIBIT signal is low-active (TTL low level or connected to signal GND). If INHIBIT is active, output voltage is
switched off immediately. After change of INHIBIT to TTL high level, the behaviour of the output voltage is depending on
position of KILL switch. If KILL is disabled, in manual control mode the value set with voltage set potentiometer will be
restored with hardware ramp (500V/s), in remote control mode the voltage value set via interface will be restored with
the software ramp. If KILL is enabled, in both modes the channel will stay switched Off.
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The KILL switch specifies the response on exceeding limits or on the external protection signal at the INHIBIT input as
follows:
Table 2: Overview KILL function
Interface Control: If “Autostart” is activated (see Command List), the voltage ramp is already
started after Status read out (command “S1” or “S2”), the Command to start the voltage change
(Command “G1”) is not necessary!
4.5 Operation check
The correct operation of the module and the LC display can be verified as follows:
The “CONTROL”-switches must be in the upper position for manual control. For each channel turn the 10-turn potentiometer
for V
SET
by one revolution such that the number in vision panel shows “1” and the circular scale is in position “0”. This setting
corresponds to 10% of the nominal Voltage. I
SET
must be set to a value >10%. No cables are connected to the HV-output.
After switching on high voltage with the switch “HV-ON” the yellow LED turns on and a voltage of 10%
±
1% V
nom
is shown in
the LCD. The read LED (“ERROR”) must stay off and the displayed value for the current of the channel should be below
0.2% I
nom
.
position
switch
KILL voltage or current limit
exceeded Inhibit active voltage and current limit
not exceeded any more
and Inhibit not active
manual control:
Activation of output voltage via
switching of „KILL“ or „HV ON“
ENABLE
(switch in
upper
position)
Output voltage switched Off
Status = ERR
Output voltage switched Off
Status = INH
remote control:
Activation of output voltage via
read out of „Sx“ and Start of
ramp „Gx“
DISABLE
(switch in
lower
position)
limitation of output current,
depending on condition
decrease of output voltage.
Quality of output voltage not
guaranteed
Status = QUA
Output voltage switched Off
Status = INH
manual control: output voltage
restored with 500V/s
remote control:
output voltage restored with
software voltage ramp