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(55)CT CT selection (Un\G272 to Un\G279)
Select the current sensor to be connected to each current sensor (CT) input.
(a) Supported modules
•Q64TCTTBWN
•Q64TCRTBWN
(b) Setting range
• 0: When CTL-12-S36-8 is used (0.0 to 100.0A)
• 1: When CTL-6-P(-H) is used (0.00 to 20.00A)
• 2: When CT ratio setting is used (0.0A to 100.0A)
(c) Current sensor (CT) to be used and buffer memory setting
When using a current sensor (CT) other than CTL-12-S36-8 and CTL-6-P(-H), set the number of second-
winding (turns) of the current sensor (CT) to be connected in CT CT ratio setting (Un\G288 to Un\G295).
Set the buffer memory area as follows according to the specification of the current sensor (CT) to be used.
For the URL of U.R.D.Co., LTD., refer to the following.
Page 32, Section 2.1 (6)
(d) Enablement of setting contents
Enable the setting contents by turning Setting change instruction (YnB) OFF ON OFF during the setting
mode (Setting/operation mode status (Xn1): OFF).
(e) Occurrence of write data error
In the following case, a write data error (error code: 4
H
) occurs as when the setting is out of the setting
value. Write error flag (Xn2) turns on and the error code is stored in Write data error code (Un\G0).
• When the set value of CT CT ratio setting (Un\G288 to Un\G295) is out of the setting when Setting
change instruction (YnB) is turned OFF ON OFF
(f) Default value
The default values are set to When CTL-12-S36-8 is used (0.0 to 100.0A) (0) for all terminals.
Current sensor (CT) to
be used
CT CT Selection
(Un\G272 to Un\G279)
CT CT ratio setting (Un\G288 to Un\G295)
( Page 141, Section 3.4.2 (57))
Note
Products of
U.R.D.Co.,
LTD.
CTL-12-S36-8
When CTL-12-S36-8 is used
(0.0A to 100.0A) (0)
Setting not necessary
The product is discontinued,
though it can be used.
CTL-6-P
When CTL-6-P(-H) is used
(0.00A to 20.00A) (1)
Setting not necessary
CTL-6-P-H
When CTL-6-P(-H) is used
(0.00A to 20.00A) (1)
Setting not necessary
CTL-12-S36-10
When CT ratio setting is used
(0.0A to 100.0A) (2)
Set 1000, which is the number of second-winding
(turns).
CTL-12-S56-10
When CT ratio setting is used
(0.0A to 100.0A) (2)
Set 1000, which is the number of second-winding
(turns).
Other current sensors (CT)
When CT ratio setting is used
(0.0A to 100.0A) (2)
Set the number of second-winding (turns) depending
on the current sensor (CT) specification.
Current sensors (CT) whose
number of second-winding
(turns) is 600 to 9999 can be
used.
Common