3.8 Control Circuit Wiring
Connect control wires as shown in
Figure 3.20:
Control Wires
Terminal Board
F ig u r e 3 .2 0 T e rm in a l B o a rd W irin g G u id e
To disconnect control wires from the terminals use the procedure described in
Figure 3.21.
Grasp the wire where it
enters the terminal with a pair of pliers, then use a straight-edge screw driver to release the terminal and pull the wire out.
If it fits tightly, e.g. if ferrules are used, turn the wire for about 45° and then pull it gently out. Use this procedure to
remove the wire jumper between terminals HC, H1 and H2 that is preinstalled at shipping.
F ig u r e 3.21 R e m o v in g W ir e s fro m t h e T e rm in a l B o a rd
When connecting control wires to the terminals, use shielded twisted-pair wires (treating wire ends as shown in
Figure 3.22
and connect the shield to the ground terminal (E [G]) o f the drive.
A - D riv e s i d e
D - S h ie ld s h e a t h ( i n s u la t e w ith t a p e o r h e a t- s h r i n k tu b in g )
B - I n s u la ti o n
E - S h ie ld
C - C o n tr o l d e v i c e s i d e
F ig u r e 3 .2 2 P r e p a r in g t h e E n d s o f S h ie l d e d C a b le s
N O TICE:
D o n o t e x c e e d 5 0 m e te rs (164 ft.) fo r the c o n tro l lin e b e tw e e n th e drive a n d th e o p e ra to r w hen u s in g an a n a lo g s ig n a l from a
re m o te s o u rc e to s u p p ly the fre q u e n c y refere nce . F a ilu re to c o m p ly c o u ld re s u lt in p o o r s ystem pe rfo rm an ce.
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YASKAWA ELECTRIC SIEP C710616 33D YASKAWA AC Drive L1000A Technical Manual