3-17
3-2-3 Terminal Block Wiring
When wiring a Terminal Block, pay attention to wire sizes, grounding systems, and anti-
noise measures.
H
Terminal Block Names and Functions
Terminal
label
Name
Function
L1
Main circuit
power supply
input
R88D-WT
j
H(H) (30 to 1500 W)
Single-phase 200/230 V AC (170 to 253 V), 50/60 Hz
R88D-WT
j
H (500 W to 6 kW)
L2
input
R88D-WT
j
H (500 W to 6 kW)
Three-phase 200/230 V AC (170 to 253 V), 50/60 Hz
R88D-WT
j
HL (30 to 200 W)
Single phase 100/115 V AC (85 to 127 V) 50/60 Hz
L3
Single-phase 100/115 V AC (85 to 127 V), 50/60 Hz
R88D-WT
j
HF (0.5 to 15 kW)
Three-phase 380/480 V AC (323 to 528 V), 50/60 Hz
¨
Main circuit DC
output (positive)
Do not connect anything to these terminals.
(Only the R88D-WT60H has this terminal.)
¨
1
Connection
terminals for DC
Reactor for
Normally short between
¨
1 and
¨
2.
When harmonic control measures are required, connect a DC Reactor be-
¨
2
Reactor for
power supply
harmonic control
q
,
tween
¨
1 and
¨
2.
(The R88D-WT60H does not have these terminals.)
©
Main circuit DC
output (negative)
Do not connect anything to these terminals.
L1C
Control circuit
power supply
input
R88D-WT
j
H(H)
Single-phase 200/230 V AC (170 to 253 V), 50/60 Hz
R88D-WT
j
HL
L2C
R88D WT
j
HL
Single-phase 100/115 V AC (85 to 127 V), 50/60 Hz
R88D-WT
j
HF
24 V DC
B1
External
regeneration
resistance
30 to 400 W: These terminals normally do not need to be connected. If there
is high regenerative energy, connect an External Regeneration Resistor be-
tween B1 and B2.
B2
resistance
connection
terminal
tween B1 and B2.
500 W to 5 kW: Normally short between B2 and B3. If there is high regenera-
tive energy, remove the short bar between B2 and B3 and connect an Exter-
nal Regeneration Resistor between B1 and B2
B3
nal Regeneration Resistor between B1 and B2.
6 to 15 kW: Connect an External Regeneration Resistance Unit between B1
and B2.
U
Servomotor
These are the output terminals to the Servomotor. Be careful to wire them
V
connection
terminals
p
correctly.
W
terminals
Frame ground
This is the ground terminal. Ground to a 100
Ω
or less.
System Design and Installation
Chapter 3
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