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Multi-channel Power Controller
G3ZA
1
Multi-channel Power Controller
G3ZA
Optimum Cycle Control for High-precision Control
with Low Noise
• Smaller than a Normal Power Controller.
• Enables low-noise power control in combination with zero-cross SSRs.
(See note.)
• One Controller can control up to 8 SSRs.
• RS-485 communications to set manipulated variables and heater
burnout detection. The Smart FB Library for the G3ZA can also be used.
• CE Marking
Main Upgraded Functions
• Soft-start function added for lamp heaters.
• Three-phase optimum cycle control added for three-phase heaters.
• Combining with special CT for150-A current detection.
Note:
The G3ZA must be used in combination with an SSR without the zero cross
function when the soft-start function is used.
Version Upgrade for Improved Functionality (V2)
Refer to
Safety Precautions
on page 9 for safety
information.
®
Features
Comparison between the G3ZA and Normal Power Controllers
Item
Normal Power Controllers
G3ZA
Connec-
tions
Power Controllers Controlled Using Current Output of 4 to 20 mA
Control Using Communications from a Host Device
•
Direct connection is possible using an EJ1 Modular Temperature Controller.
Control
method
Phase Control
•
Response is fast and high-precision temperature control is possible.
•
Harmonics and noise are problems.
Optimum Cycle Control (High-precision Zero Cross Control)
•
Outputs are turned ON and OFF each half cycle.
•
Zero-cross control is performed.
•
Noise is suppressed while achieving high-speed response with high-
precision temperature control.
Power Controller
Power Controller
Power Controller
Multi-channel Temperature Controller
EJ1N
-HFU
EJ1N-TC4 or
EJ1N-TC2
Modular Temperature
Controller (EJ1)
EJ1C
-EDU
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
2
13
4
5
6
7
8
EJ1-TC4
012
3456
789
AB
CDE
F
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
2
13
4
5
6
7
8
EJ1-TC4
012
3456
789
AB
CDE
F
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
2
13
4
5
6
7
8
EJ1-TC4
012
3456
789
AB
CDE
F
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
2
13
4
5
6
7
8
EJ1-HFU
012
3456
789
AB
CDE
F
SW2
SW1
ERROR
OCC
SD/RD
READY
SW2
SW1
ERROR
OCC
SD/RD
READY
SW2
SW1
ERROR
OCC
SD/RD
READY
G3ZA
Eight SSRs
G3ZA
Eight SSRs
G3ZA
Eight SSRs
Power controller Power controller Power controller
Power controller
8 total
Programmable Controller
4 to 20 mA commands
G3ZA-8
SSR
SSR
SSR
SSR
8 total
Programmable Controller
RS-485 commands
Serial Communications Unit (RS-485)
Содержание G3ZA
Страница 17: ...Solid State Relays G3PA 17 ...
Страница 18: ...18 Solid State Relays G3PA ...
Страница 19: ...Solid State Relays G3PA 19 ...