12
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∙
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∙
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∙
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∙
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ON, /OFF:
On/Off control of the high voltage sources
The high voltage sources can be switched on and off by the signals ON and /OFF. The /OFF signal must
be set to H (24V) in order to switch on the sources via the ON signal.
On/Off control via ON and /OFF is provided as an alternative to control via front panel buttons (ON /
OFF) or the command interface.
If the ON/OFF control is not used, both inputs (ON and /OFF) must be set to H level. In this case the
high voltage sources are switched on as soon as the interlock circuits are closed (IL1 and IL2 at H
level). This operating mode involves a safety risk.
STS, SDR:
Shutdown Status, Shutdown Reset
When an error occurs (interlock, overload, overtemperature...) the error status is stored (shutdown).
The shutdown status is reported via the status output
STS
.
The high voltage sources can only be switched on again after the shutdown latch has been reset via
the Shutdown Reset signal
SDR
, the
SDN RST
button or via the command
SRR
.
INH:
see 3.7.
STS_HV:
Status HV generation active
The signal
STS_HV
carries H level when HV generation is active.
The signal must not be used as source for safety-relevant functions!
Operation using ON/OFF control
/OFF
STS
SDR
INH
GND
STS_HV
STS_HV
2
1
2
1
EMERGENCY
STOP
ON
OFF
X2
INTERLOCK
1
2
3
4
5
6
7
8
9
10
+24V_IL
SDR
IL1
STS
INH
GND
IL2
ON
