223
_____________________________________________________________________________________________
11.1 Basic Specifications
______________________________________________________________________________________________
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
11.1.4 Interface
Power supply External power supply V
EXT
: EXT.DCV - EXT.COM
Maximum external input voltage V
EXTmax
=30V
Minimum external input voltage V
EXTmin
=5V
Internal power supply V
INT
:5V 0.5 V, 60 mA (total)
Signal level All signal active low input
Output signals
Signal level
Signal names
Open collector output, pull-up resistance 4.7 kΩ (insulated with a photocoupler)
HIGH : Minimum V
EXT
- 0.5 V (No load)
LOW : Maximum 0.5 V (TYP.) (No load)
HV-ON : Generating voltage for output
TEST : Test in progress
PASS : When measured current remains between the upper- / lower- limit
settings for set time
UFAIL : When measured current exceeds the upper-limit setting
LFAIL : When the measured current is below the lower-limit setting
READY : Standby
W-MODE : Withstand-voltage test display
I-MODE : Insulation-resistance test display
W-FAIL : Withstand-voltage test FAIL determination
I-FAIL : Insulation-resistance test failed
STEP-END : When the step ends in a program test
FILE-END : When the file ends in a program test
INT.DCV : Internal support resistance current
Input signals
Signal level
Signal names
Active low input (insulated with a photocoupler)
HIGH : Max. V
EXT
+1V(V
EXTmax
or less), Min. V
EXT
-1.5V
LOW :Max.V
EXT
-4V,Min. 0V
START : Measurement start
STOP : Measurement stop
EXT-E : External I/O effective
FILE-E : The file selection in a program test
FILE-0 to 4 : The file number selection in a program test
INTERLOCK : Interlock function effective
EXT.DCV : External DC power supply
(
Recommend: 5 to 24 V DC
)
Input signal
(contact input)
START/STOP/SW.EN (front socket SW enable)
Output signal LED light signal (40 mA max. load current)
EXT I/O
(Rear panel: Input/Output signal lines are insulated internally with a
photocoupler.)
EXT SW