5 Installation and commissioning
34
HSD S.p.A. © - h0104k01a.fm291119
5.6.3 RS-485
With regards:
the use of the module
the communication protocol specifications
the instructions for interrogating the module to discover the firmware version installed
refer to the “RS485 Communication Protocol” User Manual (for the RS-485 Communication
Protocol), distributed by HSD S.p.A..
5.7 Regenerative effect on DC BUS (dynamo effect)
When the motor is switched off, the motor shaft may be moved externally. This will generate
energy in the motor.
If the motor is used in this way, remind that a reducer will multiply the motor shaft speed.
The same effect is reached during the motor braking phases. The generated energy depends on:
inertia mass on the slow shaft, the number of motors in braking phases on the same line, the
cables length, etc....
The motor shaft max tolerable speed (without reducer) under a dynamo effect is 5000
rpm. A faster speed could damage and ruin the motor.
Protocol type RS-485
Transmission speed
9600 bit/s
38400 bit/s
Max. distance from master 100 m
Number of addresses that can be selected 32
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