Chroma 63800 Series User Manual

Programmable AC/DC Electronic Load 63800 Series Operation & Programming Manual
9-2
9.3 Status Registers
■
The Questionable Status registers inform you one or more questionable status
conditions, which indicate certain errors or faults have occurred. Table 9-1 lists the
questionable status conditions that are applied to the electronic load.
■
When the corresponding bit of Questionable Status Condition register is set, it indicates
the condition is true.
■
Reading of the Questionable Status Event register will reset it to zero.
■
The Questionable status Enable register can be programmed to specify the questionable
status event bit that is logically ORed to become Bit 3 (QUES bit) in the Status Byte
register.
Table 9-1 Bit Description of Questionable Status
Mnemonic Bit
Value Bit
Weight
Meaning
FE
0
1
Under frequency range or over frequency range.
FREQ ERR
1
2
Frequency variation occurred condition while loading.
UV 2 4
AC Mode voltage is lower than 45V, DC Mode voltage is
lower than 7.5V.
OV
3
8
AC Mode voltage is higher than 350V.
OC
5
32
AC/DC Mode current is higher than 18A or 45A.
OP
7
64
AC/DC Mode power is higher than 1800W or 4500W.
■
The Operation Status registers inform you one or more operation status conditions,
which indicate certain errors or faults have occurred. Table 9-2 lists the operation status
conditions that are applied to the electronic load.
■
When the corresponding bit of Operation Status Condition register is set, it indicates the
condition is true.
■
Reading of the Operation Status Event register will reset it to zero.
■
The Operation Status Enable register can be programmed to specify the operation status
event bit that is logically ORed to become Bit 7 (OPER bit) in the Status Byte register.
Table 9-2 Bit Description of Operation Status
Mnemonic Bit
Value Bit
Weight
Meaning
LF
0
1
Load fail
OT
1
2
Over temperature protection
FF
2
4
FAN FAIL
9.3.1 Status Subsystem Commands
STATus:
QUEStionable:
EVENt Return the value of the event register
CONDition Return the value of the condition register
ENABle Enable specific bits in the Event register
STATus:QUEStionable:EVENt?
Description : This query is the value of the Questionable Event register.
The Event register is a read-only register, which holds all
events. Reading the Questionable Event register clears it.

Chroma 63800 Series Specifications

General

Brand	Chroma
Model	63800 Series
Category	Test Equipment
Language	English