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 | |
|---|---|
| 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 |