Hioki ST5520-01 - Page 92

84
External Input/Output Terminal and Signals
ST5520
Pin
Signal
name
I/O Function Logic Pin
Signal
name
I/O Function Logic
1 START IN
Measurement
start
Edge 20 STOP IN
Measurement
end
Edge
2 (Not used) - - - 21 (Not used) - - -
3 INTERLOCK IN Interlock Level 22 LOAD0 IN
Panel number
selection
Level
4 LOAD1 IN
Panel number
selection
Level 23 LOAD2 IN
Panel number
selection
Level
5 LOAD3 IN
Panel number
selection
Level 24 (Not used) - - -
6 (Not used) - - - 25 (Not used) - - -
7 (Not used) - - - 26 (Not used) - - -
8 ISO_5V -
Isolated power
supply +5 V
(-5 V) output
- 27 ISO_COM -
Isolated
common
signal ground
-
9 ISO_COM -
Isolated
common
signal ground
- 28 TEST OUT
During
measurement
Level
10 ERR OUT
Contact check
error
Short circuit
check error
Output voltage
error
Level 29 (Not used) - - -
11 UPPER FAIL OUT
Comparator
judgment
Level 30 PASS OUT
Comparator
judgment
Level
12 LOWER FAIL OUT
Comparator
judgment
Level 31 (Not used) - - -
13 (Not used) - - - 32 (Not used) - - -
14 (Not used) - - - 33 (Not used) - - -
15 (Not used) - - - 34 (Not used) - - -
16 (Not used) - - - 35 (Not used) - - -
17 (Not used) - - - 36 (Not used) - - -
18 (Not used) - - - 37 (Not used) - - -
19 (Not used) - - -
• The connector frame is connected to the metal part on the instrument rear panel
as well as the power inlet protective ground terminal.
• When switching panel load operation using commands or key operation, x pins
4 and 5 as well as 22 and 23 to ON or OFF. (p. 87)
• Output timing of the TEST signal varies depending on the setting of the TEST
signal OFF timing.
Refer to “7.4 Setting the TEST Signal OFF Timing” (p. 101).