B-65282EN/05 2.SPECIFICATIONS
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2.1 INPUT POWER
Power supply of 200-V input series
(1) Power specification
Item Specification
Power supply voltage for
the main circuit
Three-phase 200 VAC to 240 VAC
Power supply voltage for
the control circuit
Single-phase 200 VAC to 240 VAC (input from
connector CX1A)
Allowable voltage
deviation
-15% to +10% (including voltage variation due
to load)
Power frequency 50/60Hz, ±1Hz
Power supply unbalance ±5% of the rated voltage or less
Power supply impedance
(Note)
The voltage variation must be within ±7% when
a maximum output is produced for voltage at
non-load time (power running and
regeneration).
NOTE
When the power supply impedance is high, and the
voltage variation exceeds the specified values, a
PSM alarm (DC link undervoltage alarm or DC link
overvoltage alarm) can be issued, or the output of
the motor can decrease.
[Method of checking power supply impedance]
AC voltmeter
AC power
supply
R
S
T
G
L+
L-
L+
L-
U
V
W
G
Motor
Power supply
module
Spindle amplifier module or servo
amplifier module
(%)7(%)100
0
10
<×
−
EE
E0 : Voltage at non-load time
E1 : Voltage at maximum output time (power running and
regeneration)
(2) The control circuit power to the power supply module (power
input to CX1A) must be turned on before the power to the CNC
is turned on or within 500 ms after the power to the CNC is
turned on.