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No. 99MBC095A
TIP • Terminal “GND” and “0V” are connected to “FG” (Frame of LSM-6200). Therefore,
keep the voltage level of these terminals to 0V.
• In practice, do not make connections to the “GND” terminal for the control input
and “0V” terminal for analog output. Otherwise, this system may result in an
operation error due to electrical interference or other problems.
• Always use a shielded-wire cable. Otherwise, the system may experience electri-
cal interference resulting in operation errors. Or, radio frequency will be emitted
from this system and interfere the electrical equipment.
Use the following diagram for fabricating the cable.
Shielding wire
Signal lines
To FG
• Observe the following precautions when relays are used for control circuits. Use
the following diagram when designing the control circuit.
1. Several kV of current may be induced the moment the relay is turned OFF,
which may cause relay-driven components to be damaged. Or, the induced
voltage may cause the system to malfunction. Always insert protective compo-
nents such as diodes in the circuit.
2. To drive equipment that operates on alternative current, always implement a
protective circuit (spark killer) to protect the relay contacts. In general, if the
current load is caused by induction, add protective circuit (A) or (B).
3. Refer to the manual of each relay for selection. It describes the method of
calculating the protection circuit (or selection of protective parts) depending on
the load.
K
K
(B)(A)
Load
R1
R2
0V
GO/NG judgment result output
GND
D1
+24V
Q1
Recommended values:
Suppose that the sensitivity of a relay is 50 mA, the following design is recom-
mended:
• R1: 4.7 kΩ, R2: 4.7 kΩ
• Q1: 2SA953 (Manufacturer: NEC, etc.)
• D1: 10D10 (Manufacturer: Japan Inter, etc.)
