3 Specifications
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AC Servomotors/Servo Drives 1S-series with Built-in EtherCAT® Communications User’s Manual (I586)
Control Circuit Connector (CND) Specifications
Motor Connector (CNC) Specifications
Main Circuit Connector A (CNA) Specifications
Pin No. Symbol Name Specifications
1 +24V Control circuit power sup-
ply input
24 VDC (21.6 to 26.4 V)
Measured current value: 900 mA
20 V
3---
---
Do not connect.
Symbol Name Specifications
W Motor connection terminals Phase W These are output terminals to the Servomotor.
V Phase V
U Phase U
FG FG
R88D-1SN55H-ECT/-1SN75H-ECT/-1SN55F-ECT/-1SN75F-ECT
Symbol Name Specifications
L1 Main circuit power supply
input
R88D-1SNH-ECT
3-phase 200 to 240 VAC (170 to 252 VAC) 50/60 Hz (47.5 to 63 Hz)
R88D-1SNF-ECT
3-phase 380 to 480 VAC (323 to 504 VAC) 50/60 Hz (47.5 to 63 Hz)
L2
L3
B3 External Regeneration
Resistor connection termi-
nals
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.
B2
B1
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