Content Comparison

Motor Controller

1

Galil

DMC-30012-BOX (ISCNTL)

Motor and Encoder

1

Galil

BLM-N23-50-1000-B

Power Supplies¹

2

Galil

PS-2.50-24

Power Cable

1

Galil

PWRCBL-30012-ISCNTL

Turn on motor

Will occur just before start of spectrometer exposure.

Turn off motor

Will occur during readout of spectrometer exposure.

Build

Observing

Maintenance

Motor speed

YES

NO

MAYBE

Motor RPM

once per minute (TBC)

Ensures agitator is running properly

When the encoder is mounted on the motor, it rotates in the same direction as the motor.

In the final design of the agitator, the encoder will be removed from the motor. It will be installed on a separate shaft that will rotate in the opposite direction of the motor.

Noted here as the Galil-related software might need to address this internally.

Motor current

once per minute (TBC)

• Ensures agitator is running properly

• Higher motor current could indicate wear or snags

Suggestion from Galil (email to SG):

“You can monitor the commanded current via the Tell Torque command (TT). This monitors the commanded torque or motor command signal that we are sending to the amplifier. This signal is a -10V to +10V signal. Using this with the amplifier gain (AG command) you can find what the command current is.

For example, if TTA = 2V and AGA=1 (corresponding to 0.8A/V), the commanded current to the motor is 1.6A (TT*AG or 2*0.8). Please take a look at the TT and AG commands in the controller command reference for more details.”

Motor RPM low

TBD

Motor current high

TBD

Galil DMC-3x01x Datasheet

http://www.galilmc.com/motion-controllers/single-axis/dmc-3x01x#info=0