Cattron DYNAGEN TOUGH Series TE410, User Manual

Page: 21 / 114

DynaGen
TM
TOUGH Series
TM
TE410 - EN
User Manual
21
9M02-9249-A001-EN
Revision A
Consideration Description
Distance (Power and
Ground) If you are running power and ground from the battery of your system to a remote
device, use the following guidelines for the gauge of the power and ground wires:
•
Up to 450 ft (137.2 m)
– 22 AWG
•
Up to 700 ft (213.4 m)
– 20 AWG
•
Up to 1125 ft (342.9 m)
– 18 AWG
•
Up to 1800 ft (548.6 m)
– 16 AWG
•
Up to 2800 ft (853.4 m)
– 14 AWG
Termination at the
Controller The above cable must terminate no farther than six inches from the controller
’s
RS485 (Modbus) connector. Three inches is ideal.
Refer to the Example wiring diagram for a wiring example.
2.6.6 Current Transformers
When wiring current transformers (CTs) into the system, you must follow these considerations:
•
The maximum amperage allowed on the secondary is 5 A. A 5:X ratio CT should be used where X is the
maximum primary amperage rating (e.g., 200 A)
•
The CT power rating should be a minimum of 1 V·A
•
The controller CT burden is 0.02
Ω (0.5 V·A)
•
The current transformer of each phase must be facing the same direction, as shown in the following
figure
•
The CT Common connection must be connected to the black wire on each CT
•
The wires from the current transformers to the controller should be as short as possible
•
The CT wires should be run in a separate conduit from the AC voltage wires
CAUTION
IF READINGS ARE UNSTABLE WITH THE CONFIGURATION SHOWN IN THE FOLLOWING
FIGURE, ATTEMPT TO CONNECT THE CT COMMON'S BLACK WIRE TO THE NEGATIVE
TERMINAL OF THE BATTERY. ENSURE THE CONNECTING WIRE IS AS SHORT AS POSSIBLE.
ATTENTION
SI LES RELEVES SONT INSTABLES AVEC LA CONFIGURATION CI-DESSOUS, ESSAYEZ DE
CONNECTER LE FIL NOIR COMMON (COMMUN) DU CT (TRANSFORMATEUR DE COURANT) A
LA BORNE NEGATIVE DE LA BATTERIE. ASSUREZ-VOUS QUE LE FIL DE CONNEXION SOIT
AUSSI COURT QUE POSSIBLE.
!
!