Stepper Motor Power Stage A 32-48 MINI - PHYTRON - #1

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Power Stages A 32-48 MINI Plug-in Stepper Motor Power Stage in Minirack Size Technical Information Plug-in stepper motor power stage For bipolar control of 2-phase stepper motors Step resolution up to 1/512 mini step 5 V push-pull inputs, electrically separated by optocoupler: control pulses, direction, boost, activation Electronic monitoring of overtemperature, short circuit and low voltage Status LED Reset button Motor current up to 3.5 APEAK Supply voltage 24 to 48 VDC Operation parameter programming by setting switches or at the PC via ServiceBus Run current setting switch: 15 increments Step resolution and preferred motor direction setting switch: full step to 1/20 step ServiceBus for configuration by PC software (included in delivery) ServiceBus-Comm for Windows® Size 60 x 116 x 20 mm Adapted for mounting in a type MR 8 minirack Fig. 1 The A 32-48 MINI Power Stage A 32-48 MINI is a stepper motor power stage for bipolar control of 2-phase stepper motors up to 3.5 APEAK phase current. The precision current control of the A 32-48 MINI according to the patented SYNCHROCHOP principle effects optimum running performance of the stepper motor. The phase current and step resolution setting switches are placed above the connectors for wiring the stepper motor and I/O signals. Via RS 485 connection, the power stages can be configurated by PC in the ServiceBus mode. ServiceBus is active when all setting switches of all power stages in a minirack are set to 0. The 24 to 48 VDC supply voltage and a 5 VDC logic supply voltage have to be connected to the rear 48-pole connector. Connections to the ServiceBus and address leads for defining the device address during bus operation are also placed on the 48-pole connector. The ServiceBus was designed for communica- tion with the power stage via RS 4851 port or USB port (when operating the A 32-48 MINI power stage in a MR 8 minirack). All settings are done by PC with the phytron ServiceBus-Comm software. Alternatively, the instructions can be implemented into the customer's own environment: ASCII strings in readable characters – e. g. with LabVIEW, HyperTerminal or in C. This way, parameters can be easily transmitted to the power stage during initialising or exchanging components; status information can be evaluated. In the ServiceBus mode, run, stop and boost current are programmable in 10 mA increments independently of each other. The step resolution – full step up to 1/20 step – can be set to values up to to 1/512 step in the ServiceBus mode in order to improve the motor run behavior. The step accuracy is maximum 1/20 step. The current delay time is set to 40 ms in the setting switch mode. This value can be changed in the ServiceBus mode. 1The PC is bus master and requires a type RS 422 or RS 485/4-wire port. ServiceBus Mode Controls and Connections Heat sink LED Power On / Error Reset button Run current Setting switch Step resolution Setting switch Push-pull inputs Controle pulse Direction Boost Activation Stepper motor Connection 48-pole Connector 48 VDC supply voltage 5 VDC logic supply voltage RS 485 for ServiceBus Error output A32-48 MINI / 07-2 GB