4-21
4-2 Wiring
4
System Design
Main Circuit and Servomotor Connections
When wiring the main circuit, use proper wire sizes, grounding systems, and anti-noise measures.
R88D-GTA5L/-GT01L/-GT02L/-GT04L
R88D-GT01H/-GT02H/-GT04H/-GT08H/-GT10H/-GT15H
Main Circuit Connector Specifications (CNA)
Servomotor Connector Specifications (CNB)
Sym-
bol
Name Description
L1
Main circuits power
supply input
R88D-GT@L (50 W to 400 W): Single-phase 100 to 115 VAC (85 to 127 V),
50/60 Hz
R88D-GT@H (50 W to 1.5 kW): Single-phase 200 to 240 VAC (170 to 264 V),
50/60 Hz
R88D-GT@H (750 W to 1.5 kW): Three-phase 200 to 240 VAC (170 to 264 V),
50/60 Hz
L2
L3
L1C
Control circuit power
supply input
R88D-GT@L: Single-phase 100 to 115 VAC (85 to 127 V), 50/60 Hz
R88D-GT@H: Single-phase 200 to 240 VAC (170 to 264 V), 50/60 Hz
L2C
Sym-
bol
Name Description
B1
External
Regeneration
Resistor connection
terminals
R88D-GTA5L/-GT01L/-GT02L/-GT01H/-GT02H/-GT04H:
These terminals normally do not need to be connected. If there is
high regenerative energy, connect an External Regeneration Re-
sistor between B1 and B2.
R88D-GT04L/-GT08H/-GT10H/-GT15H:
Normally B2 and B3 are connected. If there is high regenerative en-
ergy, remove the short-circuit bar between B2 and B3 and connect
an External Regeneration Resistor between B1 and B2.
B2
B3
U
Servomotor
connection terminals
Red
These are the output terminals to the Servomotor.
Be sure to wire them correctly.
VWhite
WBlue
Green/
Yellow
Frame ground This is the ground terminal. Ground to a 100 Ω or less.