Introduction

► Stepping motor drives series with Step & Direction interface suitable for driving two-phase stepping motors, with four, six or eight terminals .
► Optimized for driving R.T.A. EM series stepping motors with encoder (86 mm and 60 mm flange sizes).
► Target: applications requiring EM stepping motors. Control in a standard way (“OPEN LOOP”) but also give an alarm in case of loss of synchronism (“CLOSED LOOP”).

HIGHLIGHTS

► Microstepping function up to 4.000 step/rev.
► Setting of the sensitivity of the loss of synchronism alarm system.
► Electronic damping facility for further acoustic noise and mechanic vibrations reduction at low and medium speed.
► External fans not needed: ideal both for mounting inside a metallic electrical cabinet and for stand-alone applications.

TECHNICAL SPECIFICATIONS

► Version: drive housed in a metallic box 152 x 129 x 46 mm, equipped with plug-in connectors.
► Range of operating voltages: 55 - 100 VAC.
► Range of current: 1.9 - 6.0 Amp. Setting up to eight possible values by means of a dip-switch.
► Microstepping: 400, 800, 1.600, 3.200 and 500, 1.000, 2.000, 4.000 steps /revolution. Setting by means of dip-switches.
► Automatic current reduction at motor standstill.
► Protections:
-Protection against under-voltage and over-voltage.
-Protection against a short-circuit at motor outputs.
-Overheating protection with thermal sensor.
► High efficiency CHOPPER with MOSFET final stage output.
► Electronic damping facility for further acoustic noise and mechanic vibrations reduction at low and medium speed
► Alarm memory by use of yellow blinking led.
► Warranty: 24 months.

MOTOR LOSS OF SYNCHRONISM CONTROL FUNCTION

► Input for the connection of the R.T.A. motors EM series encoder (NEMA 34 and 60 mm flange size).
► Output for the loss of synchronism alarm.
► Setting, by means of dip-switch, of the sensitivity of the loss of synchronism alarm system.