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AC Servomotors/Servo Drives 1S-series Instruction Manual
Terminal Block Specifications
Terminal Block
Symbol
Name
Specifications
L1
Main circuit power
supply input
*1
*1. For single-phase, connect between any two phases out of the following: L1, L2, and L3.
R88D-1SAN
H-ECT
• 200 to 750 W, 1.5 kW: Single-phase 200 to 240 VAC (170 to
252 VAC) 50/60 Hz (47.5 to 63 Hz)
• 200 W to 3 kW: 3-phase 200 to 240 VAC (170 to 252 VAC)
50/60 Hz (47.5 to 63 Hz)
R88D-1SAN
F-ECT
• 1 to 3 kW: 3-phase 380 to 480 VAC (323 to 504 VAC)
50/60 Hz (47.5 to 63 Hz)
L2
L3
+24V
*2
*2. For the R88D-1SAN0
H-ECT and R88D-1SAN10H-ECT, the symbol of this terminal is 24V.
Control circuit power
supply input
24 VDC±10%
0V
*3
*3. For the R88D-1SAN0
H-ECT and R88D-1SAN10H-ECT, the symbol of this terminal is
.
B1
*4
B2
B3
*4. For the R88D-1SAN0
H-ECT and R88D-1SAN10H-ECT, the symbol of this terminal is P/B1.
External Regeneration
Resistor connection
terminals
When the Internal Regeneration Resistor is used:
• Open between B1 and B2.
• Short-circuit B2 and B3.
When the External Regeneration Resistor is used:
• Connect the External Regeneration Resistor between B1 and
B2.
• Open between B2 and B3.
N1
DC reactor connection
terminals
When the DC reactor is not used:
• Short-circuit N1 and N2.
When the DC reactor is used:
• Connect the DC reactor between N1 and N2.
N2
U
Motor connection
terminals
Phase U
These are output terminals to the
Servomotor.
Be sure to wire them correctly.
V
Phase V
W
Phase W
FG
*5
*5. Only the R88D-1SAN15H-ECT, R88D-1SAN20H-ECT, R88D-1SAN30H-ECT, and R88D-
1SAN
F-ECT have this terminal.
FG
This is a frame ground terminal for
the Servomotor.
