Motor Overload Protection - Hitachi L2002 Instruction Manual

xiv
Fuse and Circuit Breaker Sizes
The inverter's input power wiring must include UL Listed, dual-element, 600V fuses, or
UL Listed, inverse-time, 600V circuit breakers.
Input
Voltage
200V
400V

Motor Overload Protection

Hitachi L200
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 parameters. 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 protection. Install an external thermal relay on each
motor.
Motor Output
kW HP
0.2 1/4 L200-002NFE(F)2/NFU2
0.4 1/2 L200-004NFE(F)2/NFU2
0.55 3/4 L200-005NFE(F)2
0.75 1 L200-007NFE(F)2/NFU2
1.1 1 1/2 L200-011NFE(F)2
1.5 2 L200-015NFE(F)2/NFU2
2.2 3 L200-022NFE(F)2/NFU2
3.7 5 L200-037LFU2
5.5 7 1/2 L200-055LFU2
7.5 10 L200-075LFU2
0.4 1/2 L200-004HFE(F)2/HFU2
0.75 1 L200-007HFE(F)2/HFU2
1.5 2 L200-015HFE(F)2/HFU2
2.2 3 L200-022HFE(F)2/HFU2
3.0 4 L200-030HFE(F)2
4.0 5 L200-040HFE(F)2/HFU2
5.5 7 1/2 L200-055HFE(F)2/HFU2
7.5 10 L200-075HFE(F)2/HFU2
inverters provide solid state motor overload protection, which depends on
2
Ampere Rating for
Inverter Model
Fuse or Breaker
10
10
10
15
15
20 (single ph.)
15 (three ph.)
30 (single ph.)
20 (three ph.)
30
40
50
3
6
10
10
15
15
20
25