Internal Format; Contact Protection - Nagano Keiki GC62 Series User Manual

Terminals (9) and (10) are not used, but do not use them as relay
●
terminals.
■ 6.2 Internal Format
The output format is a relay contact output as a comparator output, 4 to 20mA DC current
output as an analog output, or 1 to 5V DC voltage output. Analog output is an option.
Current output or voltage output is set at the factory.
(1) Analog output (4 to 20mA DC)
This is exclusively for source only. Do not connect to the power supply (+).
GC62
(2) Analog output (1 to 5V DC)
GC62
■ 6.3 Contact Protection
When driving an inductive load such as an auxiliary relay or solenoid valve with the
comparator output, make sure to insert the protection circuit for contact. A typical example
of a protection circuit is shown below.
Example of comparator output 1
(For comparator output 2, read (1) to (2))
GC62
Power (+)
Comparator output 1
Comparator output 2
4-20mA DC
Load: 400Ω max.
Power (-)
Power (+)
Comparator output 1
Comparator output 2
Load: 10kΩ min.
1-5V DC
Power (-)
C
C
Inductive load
R
R
12
<Fig.6-2>
<Fig.6-3>
<Fig.6-4>
TY-GC62-010A Rev.2