Group 50: Encoder - ABB ACS550 User Manual

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Group 50: ENCODER

This group defines the setup for encoder use:
• Sets the number of encoder pulses per shaft revolution.
• Enables the encoder operation.
• Defines how mechanical angle and revolution data is reset.
See also User's Manual for Pulse Encoder Interface Module OTAC-01
[3AUA0000001938 (English)].
Code Description
5001 PULSE NR
Sets the number of pulses provided by an optional encoder for each full motor shaft revolution (ppr).
5002 ENCODER ENABLE
Enables/disables an optional encoder.
0 = – Drive uses speed feedback derived from the internal motor model (applies for any setting of parameter
DISABLE
9904
MOTOR CTRL MODE
1 = – Drive uses feedback from an optional encoder. This function requires the Pulse Encoder Interface
ENABLE
Module (OTAC-01) and an encoder. Operation depends on the setting of parameter 9904
• 9904 = 1 (
VECTOR
accuracy.
• 9904 = 2 (
VECTOR
accuracy.
• 9904 = 3 (
SCALAR
However, using parameter 2608
5003 ENCODER FAULT
Defines the drive operation if a failure is detected in communication between the encoder and the encoder interface
module, or between the module and the drive.
1 = – The drive generates fault
FAULT
2 = – The drive generates alarm
ALARM
0 ( ), that is, speed feedback is derived from the internal motor model.
DISABLE
5010 Z PLS ENABLE
Enables/disables the use of an encoder's Z-pulse to define the motor shaft's zero position. When enabled, a Z-pulse
input resets parameter 0146
that provides Z-pulse signals.
0 = – Z-pulse input is not present or ignored if present.
DISABLE
1 = – A Z-pulse input resets parameter 0146
ENABLE
5011 POSITION RESET
Resets the encoder's position feedback. This parameter is self-clearing.
0 = – Inactive.
DISABLE
1 = – Resets the encoder position feedback. Parameters reset depends on the state of parameter 5010
ENABLE
:
ENABLE
• 5010 = 0 (
DISABLE
• 5010 = 1 (
ENABLE
Parameters
).
: ): The encoder provides improved speed feedback and improved low speed torque
SPEED
: ): The encoder provides improved speed feedback and improved low speed torque
TORQ
: ): The encoder provides speed feedback. (This is not closed loop speed regulation.
SPEED
SLIP COMP RATIO
ENCODER ERR
ENCODER ERR
to zero to define the shaft's zero position. This function requires an encoder
MECH ANGLE
) – Reset applies to parameters 0147
) – Reset applies only to parameter 0147
and an encoder improves steady state speed accuracy.)
, and the motor coasts to a stop.
and operates as if parameter 5002
to zero.
MECH ANGLE
and 0146
MECH REVS
.
MECH REVS
ACS550 User's Manual
MOTOR CTRL MODE
=
ENCODER ENABLE
.
MECH ANGLE
:
Z PLS