Regenerative Brake Duty (Pr. 30, Pr. 70) - Mitsubishi Electric FR-E540 K-EC Series Instruction Manual

Regenerative brake duty (Pr. 30, Pr. 70)

4.2.13 Regenerative brake duty (Pr. 30, Pr. 70)
Pr. 30 "regenerative function selection"
Pr. 70 "special regenerative brake duty"
When making frequent starts/stops, use the optional "brake resistor" to increase the
regenerative brake duty.
Parameter Factory
Number Setting
30 0
70 0%
<Setting>
(1) When using the brake resistor (MRS), brake unit, high power factor
converter
Set "0" in Pr. 30.
The Pr. 70 setting is made invalid.
(2) When using the brake resistors (2 MYSs in parallel) (3.7K is only
allowed)
Set "1" in Pr. 30.
Set "6%" in Pr. 70.
(3) When using the high-duty brake resistor (FR-ABR)
Set "1" in Pr. 30.
Set "10%" in Pr. 70.
Note: 1. Pr. 70 "regenerative brake duty" indicates the %ED of the built-in brake
transistor operation. The setting should not be higher than the permissible
value of the brake resistor used. Otherwise, the resistor can overheat.
2. When Pr. 30 = "0", Pr. 70 is not displayed but the brake duty is fixed at 3%.
(Fixed at 2% for 5.5K, 7.5K)
The value set in Pr. 70 should not exceed the value set to the brake
resistor used.
Otherwise, the resistor can overheat.
Setting
Range
0,1
0 to 30%
WARNING
83
PARAMETERS
4