Motor Overload Protection - Hitachi L2002 Series Quick Reference Manual

Motor output
kW HP
0.4 1/2
0.75 1
1.5 2
2.2 3
3.0 4
4.0 5
5.5 7 1/2
7.5 10

Motor Overload Protection

Hitachi L200
2
which depends on the proper setting of the following parameters:
• B012 "electronic overload protection"
• B212 "electronic overload protection, 2nd motor"
Set the rated current [Amperes] of the motor(s) with the above parame-
ters. The setting range is 0.2 * rated current to 1.2 * rated current.
Warning: When two or more motors are connected to the
inverter, they cannot be protected by the electronic overload pro-
tection. Install an external thermal relay on each motor.
400V Models
Inverter Model
–004HFE(F)2/HFU2
–007HFE(F)2/HFU2
–015HFE(F)2/HFU2
–022HFE(F)2/HFU2
–030HFE(F)2
–040HFE(F)2/HFU2
–055HFE(F)2/HFU2
–075HFE(F)2/HFU2
inverters provide solid state motor overload protection,
Ampere Rating for
Fuse or Breaker
4
3
6
10
10
15
15
20
25