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31
Wiring
Section 3-3
• The terminating resistance is 54
Ω
min. combined.
• Both ends of the transmission path (including the host computer if it is at
one end), must be specified as end nodes (terminating resistance). Use a
combined terminating resistance of at least 54
Ω
.
• The EJ1 has an internal terminating resistance of 120
Ω
. Install terminat-
ing resistance (110 to 125
Ω
, 1/2 W) at only the end G3PW Power Con-
troller.
3-3-4
Grounding
Always ground the Power Controller to 100
Ω
or less. There are no ground ter-
minals provided, so use the heat sink mounting screws as ground terminals.
3-3-5
Wiring an External Noise Filter
Always insert a noise filter in the power supply lines to the G3PW.
■
Communications Terminals
1. RS-485(+)
2. RS-485(
−
)
3
4
5
6
7
8
9
10
11
12
13
14
For standard models, 1 and 2 are not used.
EJ1 Modular Tempera-
ture Controller, CJ-ser-
ies Serial Communica-
tions Unit, etc.
+ Multi-drop
−
Max. of 31 nodes
Command
input/power
supply
terminal block
Load
terminal block
Time-delay fuse
Load
Load circuit (T1)
Fast-acting fuse
Load circuit (L1)
Power supply
100 to 240 VAC
(50/60 Hz)
Noise Filter
RSMN-2030/2060
(TDK-Lambda Corporation)
T1
L1
1
2
3
4
5
N
L
1
2
3
4
Содержание G3PW
Страница 1: ...Cat No Z280 E1 01 User s Manual G3PW Power Controllers...
Страница 2: ...G3PW Power Controllers User s Manual Produced November 2008...
Страница 3: ...iv...
Страница 15: ...xvi...
Страница 49: ...34 Wiring for Specific Applications Section 3 4...
Страница 61: ...46 Setting Parameters in the Initial Setting Level Section 4 6...
Страница 77: ...62 Heater Burnout Detection Section 5 9...
Страница 113: ...98 Parameter Settings in the Adjustment Level Appendix B...
Страница 117: ...102 Index...
Страница 119: ......