IAI America MSCON - Manual (Page 34)

Chapter 1 Specifications Check
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1.3 Selection of Power Source and Power Supply Supportive Devices
1.3.1 Power Capacity and Heat Generation
Shown in the table is the relation between the motor wattage and motor power capacity of an
actuator that can be connected to MSCON.
Actuator Motor
Wattage
Motor Power Capacity
[VA]
Peek Max. Motor
Power Capacity [VA]
Heat Generation [W]
12 41 123 1.7
20 50 150 2.0
30D (Excluding RS) 47 141 2.0
30R (for RS) 138 414 4.0
60 146 438 4.8
100 238 714 7.0
150 328 984 8.3
200 421 1263 9.2
RS : Rotary Shaft
1.3.2 Selection of Circuit Breaker
For the selection of the circuit breaker, perform it according to the following items.
• 3 times of the rated current flows to the controller during the acceleration/deceleration. Select an
interrupter that does not trip with this value of current. If a trip occurs, select an interrupter that
possesses the rated current of one grade higher. (Check the operation characteristics curves in
the product catalog.)
• Select an interrupter that does not trip with the in-rush current. (Check the operation
characteristics curves in the product catalog.)
• Consider the current that enables to cutoff the current even when a short circuit current is flown
for the rated cutoff current.
Rated Interrupting Current > Short Circuit Current = Circuit Breaker Primary Power Capacity /
Power Voltage
Consider margin for the rated current on the circuit breaker.
Rated Current for Circuit Interrupter >
Total capacity of motor power for all the connected actuators / AC input voltage × Safety margin (1.2 to 1.3 for
reference)