Danfoss VLT AutomationDrive FC 301 Programming Manual page 571

VLT AutomationDrive FC 301/302
Programming Guide
Parameter 24-10 Drive Bypass Function
Table 1047: Parameter 24-10 Drive Bypass Function
24-10 Drive Bypass Function
Default value: [0] Disabled
Conversion index: -
After enabling the drive bypass function, the Safe Torque Off function (where included) does not comply with standard EN 954-1,
Cat. 3 installations.
This parameter determines the circumstances that activate the drive bypass function.
Option Name
[0]* Disabled
[1] Enabled
[2] Enabled (Fire M
Only)
Parameter 24-11 Drive Bypass Delay Time
Table 1048: Parameter 24-11 Drive Bypass Delay Time
24-11 Drive Bypass Delay Time
Default value: 0 s
Conversion index: 0
Programmable in 1 s increments. Once the bypass function is activated in accordance with the setting in parameter 24-10 Drive By-
pass Function, the bypass delay timer begins to operate. If the drive has been set for several restart attempts, the timer continues to
run while the drive tries to restart. Should the motor have restarted within the time period of the bypass delay timer, the timer is
reset. Should the motor fail to restart at the end of the bypass delay time, the drive bypass relay programmed for bypass in parame-
ter 5-40 Function Relay is activated. If a relay delay has also been programmed in parameter 5-41 On Delay, Relay, [Relay] or parameter
5-42 Off Delay, Relay [Relay], this time must also elapse before the relay action is performed. Where no restart attempts are program-
med, the timer runs for the delay period set in this parameter and activates the drive bypass relay, which has been programmed for
bypass in parameter 5-40 Function Relay. If a relay delay has also been programmed in parameter 5-41 On Delay, Relay or parameter
5-42 Off Delay, Relay [Relay], this time must also elapse before the relay action is performed.
5.22.3 24-4* Emergency Mode 2
Configure the ramp parameters for emergency mode:
• Ramp type
• Ramping times (duration of acceleration and deceleration)
• Level of jerk compensation for S-ramps
Start by setting the linear ramping times corresponding to
Illustration 97: Linear Ramping Times
Danfoss A/S © 2022.12
Parameter type: Option
Data type: Uint8
N O T I C E
Description
If in normal operation, the drive bypass function is activated under the following conditions:
• If there is a trip lock or a trip.
• After the number of reset attempts programmed in parameter 14-20 Reset Mode.
• If the bypass delay timer (parameter 24-11 Drive Bypass Delay Time) expires before reset at-
tempts have been completed.
Parameter type: Range, 0 - 600 s
Data type: Uint16
Illustration 97
Setup: 2 setups
Change during operation: True
Setup: 2 setups
Change during operation: True
and Illustration 98.
AU275636650261en-000101 / 130R0334 | 571
Parameter Descriptions