ABB ACQ80, Firmware Manual

Page: 61 / 390

Program features 61
Safe torque off detection (parameter
31.22
)
The drive monitors the status of the Safe torque off input, and this parameter
selects which indications are given when the signals are lost. (The parameter
does not affect the operation of the Safe torque off function itself). For more
information on the Safe torque off function, see section
Implementing the Safe
torque off function
in the Hardware manual of the drive.
Swapped supply and motor cabling (parameter
31.23
)
The drive can detect if the supply and motor cables are swapped accidentally
(for example, if the supply is connected to the motor connection of the drive).
The parameter selects if a fault is generated or not.
Current limit function (parameters
30.09
,
30.17
, and
30.10
)
The drive monitors the maximum current limit and its related parameters, and
helps the motor not to reach its stall current limit. The maximum current,
monitoring time, and how the drive should react to these conditions can be set
in the parameters
30.17 Maximum current
,
30.09 Cur Lim Monitor Time
, and
30.10
Current Limit Actions
respectively .
By default, when the drive reaches the maximum current limit and exceeds the
monitor time, a warning message (
A8B6
) is displayed.
Derivative
Proportional,
integral
acceleration
compensation
Torque
reference
Speed
ference
Actual speed
Error
value
-
+
+
+
+
1
2
3
4
5
6
7