Wiring Diagrams - Omron K8AB-TH Product Manual

Connections

■ Wiring Diagrams

K8AB-TH11S
Power supply
voltage (See note.)
A1 A2
Power supply
14 11 12
Relay output
External input
(LATCH_RST)
4 5 6
(See note 2.)
Sensor input 1 2 3
−
+
Thermocouple
■ Operation (Using the Upper-limit Alarm Mode)
Output Latch Enabled (Default Setting:
Latch Enabled)
Power supply
Alarm setting
Input (current temperature)
Alarm (red) indicator
Latch reset (See note.)
Non-fail safe,
Alarm (relay) output
Fail safe,
Alarm (relay) output
Note: The output latch is reset using the output latch reset button
on the Temperature Monitoring Relay or the external input terminal.
4
Temperature Monitoring Relay
K8AB-TH12S
Power supply
Relay output
External input
(LATCH_RST)
Not used.
(See note 2.)
Sensor input
Platinum resistance thermometer
Hysteresis width: 2°C
K8AB-TH
Power supply
voltage (See note.)
A1 A2
14 11 12
Note: 1. The input power supply depends on
4 5 6
Not used.
1 2 3
Not used.
−
+
Thermocouple
Output Latch Disabled
Power supply
Alarm setting
Input (current temperature)
Alarm (red) indicator
Non-fail safe,
Alarm (relay) output
Fail safe,
Alarm (relay) output
the model: 100 to 240 VAC or 24 VAC/
VDC (no polarity)
2. Wiring of the external input terminals
is as shown below.
Hysteresis width: 2°C