

PLUS is the name of a series of ministep bipolar chopper drives, suitable for driving two-phase stepping motors with four, six or eight terminals.
PLUS series drives are housed in a metallic box, 152 x 129 x 46 mm format, suitable for wall mounting.
They do not need external fans: accordingly, they are ideal both for mounting inside a metallic electrical cabinet and for stand-alone applications.
R.T.A. experience, together with a thorough design both of hardware and software, has led to a product offering high reliability, premium performances, great ease of use at competitive costs.
The wide range of available current/voltage values optimizes the use of PLUS series drives with a wide variety of stepping motors and in a large number of applications.
| Vac | Vdc | Inf. min. | Inf. max. | Dimensions | |
| (VOLT) | (VOLT) | (AMP) | (AMP) | (mm.) | |
| PLUS A3 | from 39 to 85 | 2,4 | 8 | 152 x 129 x 46 | |
| PLUS A4 | from 77 to 140 | 1,9 | 6 | 152 x 129 x 46 | |
| PLUS B3 | from 28 to 62 | 2,4 | 8 | 152 x 129 x 46 | |
| PLUS B4 | from 55 to 100 | 1,9 | 6 | 152 x 129 x 46 | |
| PLUS B7 | from 28 to 62 | 3,0 | 10 | 152 x 129 x 46 |
![]() |