Setup
28
3A2797ZAA
NOTE:
Power cord is not supplied. See the following
table.
† Residual Current Device (RCD) must be rated at
300 mA if installed.
Electrical Cord Wires by Model
230V, 3 phase:
L1, L2, L3, GND
400V, 3 phase:
L1, L2, L3, N, GND
Use 5/32 or 4 mm hex allen wrench to connect the
three power leads to L1, L2, L3, and Neutral (as
required). Connect green to ground (GND).
Power Line Voltage Surges
Power conversion equipment can be sensitive to volt
-
age fluctuations on incoming power. The Motor Control
Module falls under the category of power conversion
equipment because energy is stored on a capacitive
bus and then modulated to control a brushless motor.
Engineered design takes this into account and with
-
stands a wide range of conditions, but it is possible for
supplied power to occasionally fall outside the tolerable
range in industrial plants with high-amperage reactive
pulsed loads such as welding equipment. If the tolera
-
ble range is exceeded, an overvoltage condition is
flagged and the system will shut down in an alarm state
to protect itself and alert the user of unstable power.
Excessive or repeated overvoltage may permanently
damage hardware.
The MAX-HOLD feature on a multimeter can be used to
determine peak DC voltage on the line. DC is the proper
setting, as opposed to AC, because peak voltage is the
critical parameter that affects the DC voltage level
stored on the capacitive bus in power conversion
equipment. Reading should not regularly exceed
approximately 400VDC to avoid tripping the 420VDC
alarm level in the Motor Control Module. If power qual
-
ity is suspect, power conditioning or isolation of the
device(s) causing poor power quality is recommended.
Consult a qualified electrician if there are any concerns
about the available power supply.
Power Line Test Steps with Multimeter
a. Set multimeter to “DC voltage”.
b. Connect multimeter probes to supplied power
line.
c. Press “Min Max” successively to show the
peak positive and negative DC voltages.
d. Confirm readings do not exceed 400VDC
(Motor Control Module alarm issued at
420VDC).
The chart below shows the permissible magnitude and
duration of temporary over-voltage events:
Table 2: Power Cord Requirements
Model
Cord Requirements
AWG (mm
2
)
Heated system,
230V, 3 phase
4 (21.2), 3 wire + ground
Heated system,
400V, 3 phase
4 (21.2), 4 wire + ground †
F
IG
. 13: 400V, 3 phase shown
r_24C686_313998_1a
L1
L2
L3
N
GND
Maximum Permissible Transient Voltage Surges
* Constructed from ITIC 1996 curve, referenced by IEC 61000-2-4
1200Vac, 1697Vdc
264Vac, 373Vdc
336Vac, 475Vdc
288Vac, 407Vdc
480Vac, 679Vdc
<--1 MW Max Surge Power
<--150 KW Max Surge Power
<--50 KW Max Surge Power
<--No Power Limit
0
200
400
600
800
1000
1200
1400
Time (seconds)
Voltage (Volts RMS)
0.000001 0.00001 0.0001 0.001 0.01
0.1
1
10
