Baldor 23H Series Installation & Operating Manual page 70

Section 1
General Information
Block Title Parameter
PROCESS Follow I:O Ratio
CONTROL
(Continued)
Follow I:O Out
Master Encoder
COMMUNICATIONS Protocol
Baud Rate
Drive Address
AUTO TUNING
CALC Presets
CMD Offset Trim
CUR Loop COMP
Resolver Align
SPD CNTRLR
CALC
LEVEL 1 BLOCK
MN723
Table 4-3 Level 2 Parameter Block Definitions
Description
Sets the ratio of the Master to the Follower in Master/Follower configurations. Requires
the Master Pulse Reference/ Isolated Pulse Follower expansion board. For example,
the master encoder you want to follow is a 1024 count encoder. The follower motor
you wish to control also has a 1024 count encoder on it. If you wish the follower to
run twice the speed of the master, a 1:2 ratio is entered. Fractional ratios such as
0.5:1 are entered as 1:2. Ratio limits are 65,535:1 to 1:20.
Note: The Master Encoder parameter must be defined if a value is entered in the
Note: When using Serial Communications to operate the control, this value is the
This parameter is visible for use only when Serial Communication is used to operate the
control. A Master Pulse Reference/ Isolated Pulse Follower expansion board is
required. This parameter represents the FOLLOWER portion of the ratio.
The MASTER portion of the ratio is set in the Follow I:O Ratio parameter.
Only used if an optional Master Pulse Reference/Isolated Pulse Follower expansion
board is installed. Defines the number of pulses per revolution of the master encoder.
Only used for follower drives.
Sets the type of communication the control is to use, RS-232 ASCII, RS-485 ASCII,
RS-232 BBP or RS-485 BBP protocol.
Sets the speed at which communication is to occur.
Sets the address of the control for communication with other microprocessors.
The Auto Tune procedure is used to automatically measure and calculate certain
parameter values. Occasionally, the Auto Tune procedure cannot be run due to
various circumstances such as the load cannot be uncoupled from the motor. The
control can be manually tuned by entering the parameter values based on
calculations you have made. Refer to "Manually Tuning the Control" in the
Troubleshooting section of this manual.
This procedure loads preset values into memory that are required to perform Auto Tune.
Always run CALC Presets as the first step of Auto Tune.
This procedure trims offset voltage at the differential analog input at J1A-4 and J1A-5.
Measures current response while running motor at one half the rated motor current.
This procedure checks the electrical alignment of the resolver with respect to the motor
stator. This test locks the motor rotor into a reference position and proceeds to check
are re-adjust if necessary.
Should be performed with the load coupled to the motor shaft. Sets the motor current to
acceleration ratio, Integral gain and Differential gain values. If done under no load,
the Integral gain will be too large for high inertia loads if the PK Current Limit is set too
low. If the control is too responsive when the motor is loaded, adjust the PK Current
Limit parameter to a greater value and repeat this test.
ENTERS LEVEL 1 MENU
Follow I:O Ratio parameter.
MASTER portion of the ratio. The FOLLOWER portion of the ratio is set in
the Follow I:O Out parameter.
Continued
Programming & Operation 4-19