Technical information

18
230V FX Series Positioning Drive Reference Manual
in memory even if the motor shaft is moved. In most applications a Home cycle will not be
needed when bridge power is restored.
The available speed and torque will vary with the supplied voltage. The torque speed curves
in the Product Specifications section.
The logic AC current requirement for the FX-208 through FX-6120 can be met with a
115VAC, 1.0ARMS source. However, on power up the logic power supply has an inrush
current that is typically 25A peak at 100VAC and 50A peak at 200VAC. This peak current is
typically present only during the first one or two cycles of AC power. You must consider this
inrush current when you choose a logic power source and logic AC power fusing. The logic
AC voltage, for FX-208 through FX-6120, must be between 90-264VAC.
Figure 10: "External Disconnect Example (FX-208 through FX-6120)" shows the AC line
connection for the FX-490, FX- 4120 and FX-6120. The AC input lines are connected to the
terminal strip located on the bottom plate of the amplifier. Further, this figure shows the
connections for AC line wires for the FX-208 through FX-455.
It also shows how to remove the AC power if the bridge and logic power are wired separately
on the FX-208 through FX-6120 drives. If the logic power is jumpered to the bridge power,
the optional disconnects are not needed.
Figure 10: External Disconnect Example (FX-208 through FX-6120)
The FX-490, 4120 and 6120 amplifiers are designed for operation from 230VAC three phase
power. 230VAC single phase can be used, but the continuous operating line on the torque-
speed curve must be de-rated by twenty percent. If single phase power is used, any pair of L1,
L2 or L3 can be used.
FX-208 THRU FX-455 FX-490, FX-4120 AND FX-6120
L1
T
S
R
L2
L1
L2
+
-
L1
T
S
R
L2
L1
L2
L3
C1
C2
C3
L1
L2
L1
L2
L1
L2
L1
L2
L3
GND
GND
LOGIC POWER
TERMINALS
SAFETY GROUND
TERMINALS
BRIDGE POWER
TERMINALS
MOTOR PHASE
TERMINALS
OPTIONAL BRAKE
SWITCH TERMINALS
LOGIC POWER
TERMINALS
SAFETY GROUND
TERMINALS
BRIDGE POWER
TERMINALS
MOTOR PHASE
TERMINALS
OPTIONAL BRAKE
SWITCH TERMINALS
*
*
*
= OPTIONAL POWER
DISCONNECTS