Goodrive350A series high-performance multifunction VFD
Optional peripheral accessories
-405-
U, V, and W output terminals of the VFD.
2. Use a megameter of 500 V DC to measure the insulation resistance between each phase
conductor and the protection grounding conductor. For details about the insulation resistance of
the motor, see the description provided by the manufacturer.
Note:
The insulation resistance is reduced if it is damp inside the motor. If it may be damp, you need
to dry the motor and then measure the insulation resistance again.
D.5 Breaker and electromagnetic contactor
You need to add a fuse to prevent overload.
You need to configure a manually manipulated molded case circuit breaker (MCCB) between the AC
power supply and VFD. The breaker must be locked in the open state to facilitate installation and
inspection. The capacity of the breaker needs to be 1.5 to 2 times the rated current of the VFD.
According to the working principle and structure of breakers, if the
manufacturer's regulation is not followed, hot ionized gases may escape from
the breaker enclosure when a short-circuit occurs. To ensure safe use, exercise
extra caution when installing and placing the breaker. Follow the manufacturer's
instructions.
To ensure safety, you can configure an electromagnetic contactor on the input side to control the
switch-on and switch-off of the main circuit power, so that the input power supply of the VFD can be
effectively cut off when a system fault occurs.
Table D.2 AC 3PH 380V(-15%)
–440V(+10%)
VFD model
Breaker rated
current (A)
Quick fuse (A)
Contactor rated current
(A)
GD350A-1R5G/2R2P-4
6/10
10/10
9/9
GD350A-2R2G/003P-4
10/20
10/20
9/18
GD350A-004G/5R5P-4
20/25
20/35
18/25
GD350A-5R5G/7R5P-4
25/32
35/40
25/32
GD350A-7R5G/011P-4
32/50
40/50
32/38
GD350A-011G/015P-4
50/63
50/60
38/50
GD350A-015G/018P-4
63/63
60/70
50/65
GD350A-018G/022P-4
63/80
70/90
65/80
GD350A-022G/030P-4
80/100
90/125
80/80
GD350A-030G/037P-4
100/125
125/125
80/98
GD350A-037G/045P-4
125/140
125/150
98/115
GD350A-045G/055P-4
140/180
150/200
115/150
GD350A-055G/075P-4
180/225
200/250
150/185
GD350A-075G-/090P4
225/250
250/300
185/225
GD350A-090G/110P-4
250/315
300/350
225/265