• Use twisted-pair or shielded twisted-pair cables for control circuits to prevent operating
faults.
• Ground the cable shields with the maximum contact area of the shield and ground.
• Cable shields should be grounded on both cable ends.
• If flexible wires with ferrules are connected they might fit tightly into the terminals.
To disconnect them, grasp the wire end with a pair of pliers, release the terminal using
a straight-edge screw driver, turn the wire for about 45°, and pull it gently out of the
terminal.
For details, refer to the Technical Manual. Use this procedure for removing the wire link
between HC, H1 and H2 when the Safe Disable function is utilized.
Main Circuit Terminals
Terminal
Main circuit power
R/L1, S/L2, T/L3
supply input
U/T1, V/T2, W/T3
Drive output
B1, B2
Braking resistor
+1, +2
DC reactor connection
+1, –
DC power supply input
(2 terminals)
Ground Terminal
Control Circuit Terminals
The figure below shows the control circuit terminal arrangement. The drive is equipped
with screwless terminals.
S2
R+ R- S+ S- IG
P1 P2 PC A1 A2 +V AC AM AC MP
S1 S2 S3 S4 S5 S6 SC HC H1 H2 RP
There are three DIP switches, S1 to S3, located on the terminal board
Type
Connects line power to the drive.
Drives with single-phase 200 V input power have no T/L3 termi-
nal.
Connects to the motor.
For connecting a braking resistor or the braking resistor unit
option.
Linked at shipment. Remove the link to install a DC choke.
For connecting a DC power supply.
For 200 V class: Ground with 100 O or less
For 400 V class: Ground with 10 O or less
S1
S3
MA MB MC
14
3 Electrical Installation
Function
Use a straght-edge screwdriver
with a blade width of max 2.5 mm
and a thickness of max 0.6 mm to
release the terminals