Figure 10-1: Bus Capacitor Reforming Guidelines; Table 10-4: Drive Storage Duration And Reforming Recommendation (1); Table 10-5: Dc Bus Voltage Ramp-Up Values - Sensia INSTRUCT P30 INTELLIGENT VSD Installation, Operation & Maintenance Manual

P30 and S30 Low Voltage VSD
Table 10-4: Drive Storage Duration and Reforming Recommendation
Duration
Under 1 year
1...2 years
2...3 years
Over 3 years
(1)
The forming voltage must be 1.35...1.45 times the rated AC system voltage.
(2)
The power supply current draw must not exceed 50 mA.

Table 10-5: DC Bus Voltage Ramp-up Values

Figure 10-1: Bus Capacitor Reforming Guidelines

Guideline
No reforming required
Apply rated voltage, per the normal method, for 60 minutes under no load.
Using a DC power supply that is connected directly to the DC terminals of the
product, ramp up voltage from 0...100% of DC bus voltage (see Table 10-5) in
steps of 25% Dwell at 25%, 50%, and 75% steps for 30 minutes each. At 100%
voltage, dwell for 60 minutes, all under no load.
Using DC power supply, connect directly to the DC terminals of the product, ramp
up voltage from 0...100% of DC bus voltage (s
Dwell at each stem for 120 minutes
AC Input Voltage
230V
400/480V
600V
600/690V
(1)(2)
Table 10-5) in steps of 25%.
ee
Voltage Across the DC Bus
325V DC
680V DC
848V DC
976V DC
Section 10:Maintenance
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