7
I/O Configuration and Main Functions
Section 1-2
• Terminal blocks can be detached and attached. Both screw terminals and
screw-less clamp terminals are available.
• Connect a current transformer (CT) to use the heater burnout and heater
overcurrent alarms (TC2 Units only).
• Up to eight G3ZA Multi-channel Power Controllers can be connected to
one Basic Unit.
Advanced Unit (HFU)
• The HFU performs gradient temperature control or 2-PID control (set for
each group).
• Gradient temperature control can be performed for from 2 to 32 channels.
(2-PID control can also be set by group for from 2 to 32 channels.)
• Two-channel gradient temperature control can be performed for up to 16
groups (when TC4 and TC2 Units are used) or 32-channel gradient tem-
perature control can be performed for up to 2 groups (when TC4 Units are
used).
• Up to sixteen Basic Units can be connected to one HFU.
• Data can be exchanged between the EJ1G and PLCs using programless
communications.
• Up to 300 data items can be read from a PLC to the EJ1G and up to 300
data items can be written from the EJ1G to a PLC.
• OMRON CS/CJ-series PLCs and Mitsubishi Q/QnAS-series PLCs can be
connected.
End Unit (EDU)
• The End Unit supplies power to connected Basic Units and HFUs.
• An End Unit is always required when using the EJ1G.
• A total of up to 16 HFUs and Basic Units can be connected to one End
Unit.
• Port A is split into both a connector and a terminal block. The connector is
used with the Support Software and the terminal block is used for EJ1G
distributed placement. (Port B is also used for distributed placement.)
• When using port A, be sure to consider the write life of the EEPROM.
1-2-4
Model Number Legend
TC4 and TC2
B
H
Q
N
A
B
T C 4
T C 2
G
G -
T C 4
A
Q Q
1
J
E
-
1
2
3
4
5
6
7
8
9
10 11 12 13 14
G -
T C 4
B
Q Q
1
J
E
-
G -
T C 2
A
Q N H B
1
J
E
-
G -
T C 2
B
Q N H B
1
J
E
-
Options
None
2 CT inputs
2 event inputs
Outputs
2 pulse voltage outputs
2 transistor outputs
Terminal
type
Screw-less clamp terminals
Screw terminals
Unit name
Type
Gradient Temperature Control
Four-channel Temperature Control Unit
Two-channel Temperature Control Unit
Summary of Contents for EJ1G
Page 3: ...iv ...
Page 17: ...xviii ...
Page 21: ...xxii ...
Page 53: ...32 Unit Configuration Examples Section 2 4 ...
Page 69: ...48 Changing SPs During Operation Section 3 3 ...
Page 81: ...60 Other Functions Section 4 5 ...
Page 145: ...124 Other HFU Functions Section 5 7 ...
Page 167: ...146 Detailed Description of Services Section 6 4 ...
Page 229: ...208 Parameters That Can Be Allocated for Programless Communications Appendix ...
Page 237: ......