Automation Direct DURApulse GS4 User Manual

Chapter 4: AC Drive Parameters
Page 4–161
DURApulse GS4 AC Drive User Manual – 1st Ed, Rev A - 10/20/2017
P6.61~P6.64: Decel Energy Backup (DEB) Summary for P6.61~P6.64
The DEB feature allows the drive to decelerate to a stop after a momentary power loss. When a
momentary power loss occurs, this function can be used to have the motor decelerate to 0 speed
with a predefined deceleration stop method (P6.61). When the supply power comes back on to
rated voltage, the motor will run again after the DEB Delay Time (P6.64). The DEB delay time starts
after the voltage level has reached the “Level of DEB Delay Time,” as defined below.
Level of DEB Delay Time definitions:
• 460V series Frame E and above: “Level of DEB Delay Time” = P6�35 + 180VDC
• 460V series Frame D and below: “Level of DEB Delay Time” = P6�35 + 160VDC
• 230V series Frame E and above: “Level of DEB Delay Time” = P6�35 + 90VDC
• 230V series Frame D and below: “Level of DEB Delay Time” = P6�35 + 80VDC
Example 1: Insufficient power supply due to momentary power loss, or unstable power due to low
voltage or sudden loading:
DC Bus Voltage
Level of DEB Delay Time
DEB Activation Level (P6.63+P6.62)
DEB Disable Voltage Level (P6.63)
Soft start relay at power side
DEB Activation
Output Frequency
DEB Deceleration Time
0Hz
DEB Delay Time
P6.64
NOTE: If P6.64 is set to 0, then a STOP command will be given. The drive will not accelerate to reach
the commanded frequency before DEB even if the power comes back on. If P6.64 is not set to 0,
a command of zero speed will be given and wait for the power on.
NOTE: DEB active level is when the DC BUS voltage level is lower than the DEB Disable Voltage Level (P6.63) plus the DEB
Offset Level (P6.62). Defaults are: 230V series: Lv level + 20VDC; 460V series: Lv level + 40VDC.
Example 2: Unexpected power off, such as momentary power loss:
DC Bus Voltage
Level of DEB Delay Time
DEB Activation Level (P6.63+P6.62)
DEB Disable Voltage Level (P6.63)
Soft start relay at power side
DEB Activation
Output Frequency
DEB Deceleration Time
DEB Delay Time (does not activate)
Exa mple Application: There are always several machines running at the same time in a textile factory.
To prevent broken stitching when powering down, these machines have to decelerate to a stop in a
synchronous manner. So when there is a sudden power loss, the host controller will notify the GS4
Drive to use the DEB function with a deceleration time via EF.
NOTE: DEB active level is when the DC BUS voltage level is lower than the DEB Disable Voltage Level
(P6.63) plus the DEB Offset Level (P6.62).

Automation Direct DURApulse GS4 Specifications

General

Brand	Automation Direct
Model	DURApulse GS4
Category	Controller
Language	English