Conversion Setting For Disconnection Detection Function (Q68Td-G-H02 Only) - Mitsubishi Q68TD-G-H01 User Manual

3
SPECIFICATIONS
3.2.2
The conversion setting for disconnection detection function stores specific values into
measured temperature values when disconnection is detected.
This function can identify the disconnection detection from measured temperature values.
This function is only available for channels enable temperature conversion.
(1) Overview of disconnection detection
3
- 12 3.2 Function List

3.2.2 Conversion setting for disconnection detection function (Q68TD-G-H02 only)

Conversion setting for disconnection detection function
(Q68TD-G-H02 only)
Disconnection detection signal (XC)
Disconnection detection flag (Un\G49)
CH Measured temperature value
(Un\G11 to Un\G18)
Error clear request (YF)
Figure 3.6 Overview of disconnection detection
(a) It takes up to 640ms till when disconnection is detected.
When disconnection is detected, Disconnection detection flag (Un\G49) and
Disconnection detection signal (XC) turn on. Consequently, "ALM" LED blinks.
(b) When disconnection is detected, the value selected from "Up scale", "Down scale"
or "Given value" in Conversion setting for disconnection detection
(Un\G164,Un\G165) is stored into CH
Un\G18).
The values specified in Conversion setting for disconnection detection
(Un\G164,Un\G165) remains from when disconnection state is restored till when
normal measured temperature value is stored.
(c) After disconnection state is restored, the batch-update of measured temperature
value restarts automatically.
It takes up to 1600ms from when disconnection state is restored till when
measured temperature value is stored into CH
(Un\G11 to Un\G18).
(d) The state of Disconnection detection flag (Un\G49), Disconnection detection
signal (XC), and "ALM" LED, which means the state of disconnection detection,
remain even when disconnection state is restored. Turn on Error clear request
(YF).
(e) For operating the warning output function in disconnection and restoration, refer
to Section 3.2.4.
Maximum 640ms Maximum 1600ms
Disconnected
Normal
Normal(0) Disconnected(1)
Measured
Conversion setting value
temperature
for disconnection detection
value
Measured temperature value (Un\G11 to
Normal
Normal(0)
Measured
temperature
value
Measured temperature value