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TRT
TILTING ROTARY
TABLE
TRT
O M
PERATOR’S ANUAL
TILTING ROTARY
TABLE
96-5048 rev E
June 2002
Example 1: A Brush HRT with a 2000 line encoder (with four pulses per line, or quadrature) a 72:1 gear
ratio, and a final drive of 2:1 would produce:
[8000 x (72 x 2)] / 360 = 3200 steps for 1 degree of motion.
Example 2: A Brushless HRT with 8192 line encoder (with quadrature), a 90:1 gear ratio and a final drive of
3:1 would produce:
[32768 x (90 x 3)] / 360 = 24576 steps for 1 degree of motion.
Parameter 10 : auto continue control, range 0 to 3
0 : Stop after each step
1 : Continue all looped steps and stop before next step
2 : Continue all programs until end code 99 or 95
3 : Repeat all steps until stopped manually
Parameter 11 (57): reverse direction option, range 0 to 3 PROTECTED!
This parameter consists of two flags used to reverse the direction of the motor drive and encoder. Start
with a zero and add the number shown for each of the following selected options:
+1 Reverse the direction of positive motor motion.
+2 Reverse the polarity of motor power.
Changing both flags to the opposite state will reverse the direction of motor motion.
Parameter 12 (58): display units and precision (decimal location), range 0 to 6
0 : degrees and minutes (circular)
Use this setting to program four digits of degrees up to 9999 and two digits of minutes.
1 : inches to 1/10 (linear)
2 : inches to 1/100 (linear)
3 : inches to 1/1000 (linear)
4 : inches to 1/10000 (linear)
5 : degrees to 1/100 (circular)
Use this setting to program four digits of degrees up to 9999 and two digits of fractional degrees to
1/100
6 : degrees to 1/1000 (circular)
Use this setting to program three digits of degrees up to 999 and three digits of fractional degrees
to 1/1000
Parameter 13 (59): maximum positive travel, range 0 to 65535
This is the positive travel limit in units*10 (entered value loses last digit). It applies only to linear motion
(i.e., Parameter 12=1, 2, 3, or 4). If it is set to 1000, positive travel will be limited to 100 inches. The
entered value is also affected by the gear ratio divider (parameter 20).
Linear example (6mm pitch ballscrew): 20.0 inch travel X 138718 ratio = 2774360 (entered value: 277436)
Rotary example (must also use “linear” settings of 1,2,3 or 4 entered in parameter 12): 120.0 degrees of
travel X 4000 ratio = 480000 (entered value: 48000)
Rotary Example (with a parameter 20 value of 3): 120.0 degrees of travel x 4000 ratio/3 = 160000
(entered value: 16000).
Parameter 14 (60): maximum negative travel, range 0 to 65535
This is the negative travel limit in units*10 (entered value loses last digit). It applies only to linear motion
(i.e., Parameter 12=1, 2, 3, or 4). For examples see parameter 13.
Parameter 15 (61): backlash amount, range 0 to 99 PROTECTED!
This parameter is used to compensate electronically for mechanical gear backlash. It is in units of encoder
steps. Note: this parameter cannot correct mechanical backlash.
PARAMETERS