5
G216 SETUP FOR MOTOR DRIVE MODE
CAUTION:
Perform the following steps with the power supply turned 'OFF' until a step says it is OK to turn the power supply 'ON'. Do not
change the current set switches after setup while the motor is powered.
The following switch settings and their function only applies to the Motor Drive Mode. The same switches have completely
different functions in the VCO Mode.
STEP 1: SELECT MOTOR DRIVE MODE
SW1 'ON' Select step motor drive mode operation. In this mode the G216 acts like a STEP / DIRECTION motor drive and the
internal VCO isn't used.
STEP 2: SELECT MOTOR CURRENT
Use the following chart to set the G216 to the motor's phase current rating. If a motor has a rated current that isn't listed in the
table below, set the current to the first setting that is greater than the motor's rated current.
STEP 3: SELECT MOTOR SIZE
Switch 5 must be set to the motor frame size.
SW5 ‘ON’ The motor is a NEMA-23 size or smaller.
SW5 'OFF' The motor is a NEMA-34 size or larger.
STEP 4: SELECT STEP SIZE
The G216 can move in full-step, half-step or 10-microstep increments.
FULL-STEP
SW3 'ON'
SW4 'ON'
Every step pulse will move a 1.8 degree motor 1.8 degrees. The motor will move with 10-microstep smoothness which greatly
limits low speed vibration.
HALF-STEP
SW3 'ON'
SW4 'OFF'
Every step pulse will move a 1.8 degree motor 0.9 degrees. The motor will move with 10-microstep smoothness to limit low
speed vibration.
10-MICROSTEP
SW3 'OFF'
SW4 'ON'
Every step pulse will move a 1.8 degree motor 0.18 degrees. The motor will move with 320-microstep smoothness which makes
the motor's motion continuous instead of step-wise even at very low speeds (less than 1 full-step per second).
STEP 5: SELECT STANDBY CURRENT REDUCTION
Standby Current Reduction is a method of reducing motor heating while a motor is idle and not moving. This is accomplished
reducing motor current to 70% of the set value if this setting is enabled. The only adverse effect is the motor's holding torque is
reduced to about 75% of its nominal value. If the motor has a back-driving load such as holding up a weight against gravity, this
selection may not be advisable.
When enabled, the current reduction goes into effect 1 second after the last step pulse is received. The motor stays in this state
until a new step pulse sent, at which time full current is restored very quickly.
SW2 'ON' enables current standby. The current is reduced while a motor is idle.
SW2 'OFF' disables current standby. An idle motor will stay at full current.
THIS COMPLETES THE SWITCH SETUP
