Mitutoyo EJ-102N - Input;Output Circuits

45
No. 99MBC139A
4 Data Output
Pin
number
Signal name IN/OUT Functions
8
LT1 OUT
Outputsthetolerancejudgmentresultforthechannelspeciedby
1/2SEL.Outputofthevarioussignalscorrespondstotheonoro󰀨
state of the tolerance indicator.
H:Thecorrespondingtoleranceindicatoriso󰀨.
L: The corresponding tolerance indicator in on.
Correspondence between signals and tolerance indicators
MODE
Fn
SEL / CE
Ch.
TIR
P.SET
LT2 LT3LT1
9 LT2 OUT
10
LT3 OUT
4.1.4 Input/Output Circuits
■Input circuit
Connect external resistance (Re) as needed to bring input current into the range from 5 mA to 15 mA.
EJ Counter
(10 V–27 V DC)
Re
(reference circuit)
GND
Input
TLP291 (GB, SE)
Equivalent part
1kΩ
1kΩ
■Output circuit
Adjust the output circuit current to 20 mA for use.
EJ Counter
GND
(GND)
Output
External circuit voltage of 30 V DC or less
TLP291 (GB, SE)
Equivalent part
NOTICE
• Use shielded conductors as signal lines and connect the cable shield to frame ground. This will help mini-
mizeelectromagneticinterferencethatcoulda󰀨ecttheproductandpreventerroneousoperationandpossi-
ble damage.
• To protect the product from damage by inductive loads, such as relays, use protective devices such as re-
verse voltage prevention diodes.