Power Supply Status Structure; Condition Registers; Fault Register - TDK-Lambda Z+ Series User Manual

9.2 Power Supply Status Structure

Status and Fault Register shows the status register structure of the power supply. The Standard
Event, Status Byte, and Service Request Enable registers and the Output Queue perform standard
functions as defined in the IEEE 488.2 Standard Digital Interface for Programmable Instrumentation.
The Operation Status and Questionable Status registers implement status functions specific to
the power supply.

9.3 Condition Registers

There are two registers that the user may read to see the condition of the supply. The register
bits are set to show a fault or if an operating mode is active. The bits are cleared when the fault
or mode is cleared. The registers are read-only.

9.3.1 Fault Register

The fault register sets a bit when a Fault occurs (Refer to table 9-1). The bit is cleared when the
fault condition is removed.
Bit Number
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14 to 15
Table 9-1: Bit Configuration of Questionable Registers
Decimal Value
1
2
4
8
16
32
64
128
256
512
1024
2048
4096
8192
N/A
Bit Symbol
AC
OTP
FLD
OVP
SO
OFF
INT
UVP
0
INPO
INTO
ITMO
ICOM
0
119
Description
AC Fail
Over Temperature
Fold Back Protection
Over Voltage Protection
Shut Off
Output Off
Interlock
Under Voltage Protection
Not used
Internal Input Overflow *
Internal Overflow *
Internal Time Out *
Internal Comm Error *
Not used