6
Modular Temperature Controller
EJ1
■
Ratings
Note: 1.
Auxiliary outputs can be allocated using digital output allocations.
2.
Event inputs can be allocated using digital output allocations.
■
Characteristics
■
Communications Characteristics: Port C
When using an HFU, port B on the End Plate can be used for distributed placement only.
Note: 1.
The communications method can be switched between RS-485 and RS-232C. A separate model must be used for RS-422 communications.
2.
For the number of Units that can be connected, refer to
Connection Precautions
on page 11.
HFU Unit/EJ1
N
-HFU
Power supply voltage
24 VDC
Operating voltage range
85% to 110% of rated voltage
Power consumption
2 W max. (at maximum load)
Auxiliary outputs
(See note 1.)
Outputs
4
Transistor outputs
Max. operating voltage: 30 VDC, Max. load current: 50 mA
Event inputs (See
note 2.)
Inputs
4
Contact inputs
ON: 1 k
Ω
max., OFF: 100 k
Ω
min.
Transistor inputs
ON: residual voltage of 1.5 max., OFF: leakage current of 0.1 mA max.
Short-circuit current: Approx. 4 mA (per contact)
Programless
connection
Programless downloading
(EJ1 reads data from a PLC)
Number of parameters that can be set: 600
300 (Ver. 1.0)
Programless uploading
(EJ1 writes data to a PLC)
Number of parameters that can be set: 600
300 (Ver. 1.0)
Applicable PLCs
OMRON: SYSMAC CS/CJ/CP1H Series
Mitsubishi Electric: MELSEC-An/AnS/FX
3UC
Series
Mitsubishi Electric: MELSEC-Q/QnA/QnAS Series (Ver. 1.0)
Ambient temperature range
Operating:
−
10°C to 55°C
Storage:
−
25°C to 65°C (with no icing or condensation)
Ambient humidity range
Operating: 25% to 85% (with no condensation)
Insulation resistance
20 M
Ω
min. (at 500 VDC)
Dielectric strength
600 VAC, 50/60 Hz for 1 min between current-carrying terminals of different polarity
Vibration resistance
10 to 55 Hz, 20 m/s
2
for 2 hours each in X, Y, and Z directions
Shock resistance
150 m/s
2
max., 3 times each in 6 directions
Weight
160 g
Degree of protection
Rear case: IP20, Terminal section: IP00
Memory protection
EEPROM (non-volatile memory) (number of writes: 100,000)
Standards
Approved standards
UL61010C-1, CSA C22.2 No.1010-1
Conformed standards
EN61010-1 (IEC61010-1): Pollution level 2, overvoltage category II
EMC Directive
Refer to page 3.
Transmission path connection
RS-485/RS-422: Multi-point, RS-232C: Point-to-point (See note 1.)
Communications method
RS-485/RS-422 (two-wire, half duplex), RS-232C
Synchronization method
Start-stop synchronization
Communications protocol
•
OMRON PLC protocol (Connectable PLCs: SYSMAC CS/CJ/CP1H Series)
•
AnA/AnU CPU common commands (Connectable PLCs: MELSEC-An/AnS/FX
3UC
Series)
•
MC protocol (form 5) (Connectable PLCs: MELSEC-Q/QnA/QnAS Series)
Baud rate
9.6, 19.2, 38.4, 57.6, or 115.2 kbps
Transmission code
Binary
Data bit length
8 bits
Stop bit length
1 bit
Error detection
Depends on protocol selected for the programless communications protocol.
Flow control
None
Interface
RS-485, RS-422, RS-232C (See note 1.)
Retry function
Available
Communications response wait time
0 to 99 ms (default: 5 ms)
1 to 99 ms (default: 5 ms) (Ver. 1.0)
Number of Basic Units that can be connected in
parallel (See note 2.)
16 Units (model numbers with TC4: 64 channels, model numbers with TC2: 32 channels)
Number of HFUs that can be connected
•
SYSMAC CS/CJ-series PLCs: 8 (EJ1-HFU
@
-NFLK)
•
MELEC Q/QnA/QnAS-series PLCs: 8 (EJ1-HFU
@
-NFL2 )
V1.1
V1.1
V1.1
V1.1
V1.1
V1.1
