Modular Temperature Controller for Gradient Temperature Control
EJ1G
13
Connection
■
External Connection
• Functional insulation is applied between the power supply and the I/O sections. If reinforced insulation is required, connect the input
and output terminals to devices without any exposed current-carrying parts or to devices with reinforced insulation suitable for the
maximum operating voltage of the power supply and I/O sections.
• To comply with the standards for noise terminal voltage for class A in EN 61326, install a noise filter (Densei Lamda MXB-1206-33 or
the equivalent) to the DC power line as close as possible to the Temperature Controller.
• Use a SELV power supply. An SELV circuit is one separated from the power supply with double insulation or reinforced insulation,
that does exceed an output voltage of 30 V r.m.s. and 42.4 V peak or 60 VDC max. The OMROM S8VS Series is recommended for the
power supply.
EJ1G-TC4
EJ1G-TC2
EJ1G-HFU
EJ1C-EDU
Note: 1.
To connect to the G3ZA, connect a G3ZA Connecting Cable (EJ1C-CBLA050, sold separately) to the G3ZA connection port (CN1) on
the EJ1.
2.
To connect to a computer using the port A connector, use an E58-CIFQ1 USB-Serial Conversion Cable (sold separately). The
Temperature Controller can be connected to a computer using USB.
3.
Terminals A10 and B10 are not used on models with screw-less clamp terminals. Do not connect anything to these terminals.
12 VDC
12 VDC
OUT4
OUT3
12 VDC
12 VDC
OUT2
OUT1
B1
B2
B3
B4
B5
B6
B7
B8
B9
A1
A2
A3
A4
A5
A6
A7
A8
A9
CH4
CN1 G3ZA connection port
Analog
input
Pt
Thermo-
couple
A
B
B
mA
V
CH3
A
B
B
mA
V
CH2
A
B
B
mA
V
CH1
A
B
B
mA
V
Circuit 1
Circuit 1
OUT4
OUT3
B1
B2
B3
B4
B5
B6
DC12V
DC12V
B7
B8
B9
CN1
OUT2
OUT1
A1
A2
A3
A4
A5
A6
A7
A8
A9
CT2
CT1
Circuit 1
Circuit 2
G3ZA connection port
CH2
A
B
B
mA
V
CH1
A
B
B
mA
V
Analog
input
Pt
Thermo-
couple
DO NOT USE
DO NOT USE
DO NOT USE
RS-485 for port C and RS-232C
can be switched.
Another model must be used for
RS-422 communications.
RS-485
DO NOT
USE
SUB2
SUB1
RS-232C
SD
RD
SG
B1
B2
B3
B4
B5
B6
SUB4
SUB3
B7
B8
B9
B
A
A1
A2
A3
A4
A5
A6
A7
A8
A9
Circuit 2
Port C
Port C
Circuit 2
DO NOT
USE
DO NOT
USE
RS-422
RS-422
SDB
SDA
RDB
RDA
EV2
EV1
EV4
EV3
Input power supply
Port A connector
Port B
Port A
These two ports
cannot be used
at the same time.
Used for distributed
placement.
B
A
B
A
24 VDC
SUB2
SUB1
1
2
3
4
5
6
7
8
9
RS-485
RS-485
Circuit 2