Table of Contents
Advertisement
Nomenclature
■ Front Operations
Power indicator (PWR): Green
Alarm indicator (ALM): Red
■ Function Setting DIP Switch
SW1
SW2
SW3
SW4
SW5
SW6
SW7
SW8
This DIP switch is provided on the side
of the Temperature Monitoring Relay.
(All switches are OFF for the default
settings.)
OFF
ON
Output latch
reset button
Alarm setting
rotary switch
TH11
SW1
Alarm mode
SW2
Output latch selector
SW3
Operation selector: Non-fail safe/
fail safe
SW4
Temperature unit
SW5
Input type selector
SW6
SW7
SW8
Not used.
K8AB-TH11S
K
J
SW5
OFF
OFF
SW6
OFF
OFF
SW7
OFF
ON
* The type will be Pt100 for any of these settings.
K8AB-TH12S
K
J
SW5
OFF
OFF
SW6
OFF
OFF
SW7
OFF
ON
Indicators
Item
Power indicator
Lit: Power supply is ON.
(PWR)
Flashing: SV protected.
Alarm indicator
Lit: Relay is operating.
(ALM)
Flashing: Sensor is disconnected or there is a
Temperature Monitoring Relay error. (See note 1.).
Operation Switches
Item
Output latch reset
The output latch can be reset by pressing this button.
button
(Enabled when latch is enabled.) (See note 2.)
Alarm setting
Set each digit of the alarm set temperature.
rotary switch
K8AB-TH11S: x1, x10, x100 digits
K8AB-TH12S: x10, x100, x1000 digits
Note: 1. The ALM indicator will flash if any of the following conditions occur.
(1) The temperature input value exceeds the specified range.
(2) The temperature set value exceeds the specified range.
(3) There is an error in the internal circuits.
2. The SV protection will function when the latch reset button is pressed
for at least 5 s.
The power indicator will flash when the SV is protected. To release
the protection, press the latch reset button again for at least 5 s.
Alarm Setting Rotary Switch
Turn the arrow in the direction of the number to set.
Function
OFF
Upper-limit alarm
ON
Lower-limit alarm
OFF
Enabled
ON
Disabled
OFF
Non-fail safe
ON
Fail safe
° C
OFF
° F
ON
Refer to the following table.
---
Sensor type
T
E
Pt100*
Pt100*
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
ON
OFF
ON
Sensor type
T
E
B
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
ON
OFF
ON
Temperature Monitoring Relay
Usage
Usage
Default
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
Pt100*
Pt100*
ON
ON
ON
ON
OFF
ON
R
S
PLII
ON
ON
ON
ON
OFF
ON
K8AB-TH
5
Advertisement
Table of Contents
