I/O Circuitry - Sony LT10-105 Bedienungsanleitung

Go/No Go output
High : displayed value > upper limit
Go : upper limit > displayed value > lower limit → "L" (ON)
Low : lower limit > displayed value
Note
All terminals are "H" (OFF) when an alarm is set.
Start/hold input
• When the peak-hold function has been chosen an "L" (ON)
signal sets the maximum, minimum, and peak-to-peak values
to the current value and restart their storing. (Start function)
• The start function results when the initial setting is
changed from , set at the time of shipping, to
When in the measuring mode for the current value, an "L"
(ON) signal will hold the output (terminals) and display of
the Go/No Go comparison result. (Hold function)
Note
While the Go/No Go output is at the "L" level, reset/recall
cannot be effected by reset key or external reset/recall input.
Reset/recall input
"L" (ON) sets the measured value to zero.
When there is a preset value this is recalled.
Note
Even when the "L" level is held, the Go/No Go output
(terminals) and the display are not held.
Main DC power (12 to 24V)
Use with the pin !£ GND.
Connect to a 12 to 24V DC power source.

6-2. I/O circuitry

→ "L" (ON)
→ "L" (ON)
Output circuit (Pins 2-7) : Open collector output
Display unit
74LS06
OUT
GND
.
Output signal rating
On : V = MAX. 0.7 V (when output current I
OL
Off : V = MAX. 26.4 V (output current I
OH
Note
When connecting an L (coil) load such as a relay to output pins, be
sure to connect a back-voltage absorption diode in parallel with the
coil. Otherwise, the transistors inside the output IC may be damaged.
Display unit
74LS06
OUT
GND
• U s e a s w i t c h i n g d i o d e w i t h a b a c k - v o l t a g e o f
approximately 3 times the supply voltage (+COM) (80 V
back-withstand voltage with a supply voltage of 24 V).
Externally connected device (Connection Type 1)
+COM
Go/No Go output
IN
–COM
OL
= MAX. 250 µA)
OH
Externally connected device (Connection Type 2)
+COM
Go/No Go output
IN
–COM
= 24 mA)
Relay
61