User Manual Instruction Manual

13-66 GV6000 AC Drive User Manual
The Bus Voltage Regulator is enabled. The Bus Voltage Regulator setpoint follows
“Bus Reg Curve 1” below a DC Bus Memory of 650V DC and follows the “DB Turn On”
above a DC Bus Memory of 650V DC (Table 13-5). For example, with a DC Bus
Memory at 684V DC, the adjust frequency setpoint is 750V DC.
If Bus Reg Mode A (161) is set to “Both-DB 1st”
Both regulators are enabled, and the operating point of the Dynamic Brake Regulator
is lower than that of the Bus Voltage Regulator. The Bus Voltage Regulator setpoint
follows the “DB Turn On” curve (Table 13-5). The Dynamic Brake Regulator follows the
“DB Turn On” and turn off curves (Table 13-5). For example, with a DC Bus Memory at
684V DC, the Bus Voltage Regulator setpoint is 750V DC and the Dynamic Brake
Regulator will turn on at 750V DC and back off at 742V DC
13.22 Current Limit
There are 6 ways that the drive can protect itself from overcurrent or overload
situations:
• Instantaneous Overcurrent trip
• Software Instantaneous Trip
• Software Current Limit
• Overload Protection IT
• Heatsink temperature protection
Table 13.5 – Bus Voltage Regulation Setpoint Determination 2
Voltage
Class DC Bus Memory Bus Reg Curve #1 Bus Reg Curve #2
240 <325 VDC Memory +50 VDC Curve 1-4 VDC
325V DC ≤ DC Bus
Memory ≤ 342V
DC
375 VDC
>342 VDC Memory +33 VDC
480 <650 VDC Memory +100 VDC Curve 1-8 VDC
650V DC ≤ DC Bus
Memory ≤ 685V
DC
750 VDC
>685 VDC Memory +65 VDC
600 <813 VDC Memory +125 VDC Curve 1-10 VDC
813V DC ≤ DC Bus
Memory ≤ 856V
DC
937 VDC
>856 VDC Memory +81 VDC
600/690V
Frames 5
and 6
only
<933 VDC Memory +143 VDC Curve 1-11 VDC
933V DC ≤ DC Bus
Memory ≤ 983V
DC
1076 VDC
>983 VDC Memory +93 VDC