ATM-C4G rapidly detachable stepper motor drive
Description
ATM-C4G stepper motor unit drives the adjustable trimmer capacitors and goniometer of the ATP-CF probe. The mating shaft adaptors of the motor unit and probe allow for a quick attachment or detachment. When the stepper motor unit is detached from the ATP-CF or not powered, the trimmer and goniometer shafts of the ATP-CF probe can be rotated manually for setup purposes. The ATM-C4G stepper motor unit is designed with industry-standard high power hybrid stepper motors and differential encoders so that it can be controlled with conventional stepper motion controllers. Your expensive, high-Q, cryogenic trimmer capacitors are protected from mechanical damage by adjustable limit switches.
Technical specifications
General | |
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max. diameter | φ 13 cm (φ 5.1”) |
full height (including supports) | 34 cm (13.4”) |
weight | 3.2 kg (7 lbs) |
materials | housing: chromated aluminum, MIL-specs compliant surface paint in RAL 7038 color supports: non-magnetic stainless steel limit switch compartment cover: transparent acrylic glass |
power input rating (logic circuits) | +24 V, 500 mA DC |
Stepper motors | |
number of axes | 3 - 5 (2 - 4 with low/high limit sensors, goniometer axis without limit sensors) |
max. current | 0.67 A per axis, powered from the autotuning controller |
holding torque | 127 Nmm (18 oz-in) |
size and winding type | NEMA-11, bipolar serial |
overheat protection | microcontroller-based with fan |
Encoders | |
resolution | 500 steps/revolution |
zero-position signal | yes |
cable drivers | differential |
Limit switch compartment | |
limit switch type | mechanical microswitch with adjustable position |
variable capacitor support | max. 100 turns full range |
position indication | sliding limit switch trigger ± 50 turns, color-coded scales |
Operator panel | |
switches | on/off switch with LED indicator emergency switch |
status indicators | motor activity LEDs (5 x) limit switch LEDs (8 x) |
connectors | trimmers 1 - 4 : 19-pin female, color-coded goniometer: 19-pin male, color-coded power & status: 4-pin female |