Configure Other Protection Mechanisms
M370078-01
5-71
5
Protection Mask (Enable Alarms)
The protection mask allows for the different alarms to be masked,
completely disabling them. This means that the SCPI status and
operations registers will not detect the alarms. You will have no way of
knowing the current operation state of the alarm. The protection mask is a
feature that is only accessible using the SCPI command noted below.
Command:
[:]SYSTem[<channel>]:PROTection[:MASK] {?|<mask>}
Where
<mask> is the bit mask for disabling the alarms. See Table 5-19 for
details.
See “Alarms and Errors” on page 3–18.
Table 5-19
Alarms Bit Mask
Bit
Bit Weight
Bit Name
Description
0
1
AC Fail
Not used. Always 1.
1
2
OTP
Over Temperature protection.
2
4
N/A
Not used.
3
8
Fan Stop
Fan on the main board.
4
16
N/A
Not used.
5
32
Interlock
Not used. Always 1.
6
64
OVP
Not used. Always 1.
7
128
OCP
Not used. Always 1.
8
256
Foldback
Foldback protection.
9
512
Shutdown
External Shutdown pin
10
1024
UVP
Under Voltage protection.
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