GE Industrial Solutions 6KCV300lNS - Manual (Page 23)

S
7.0 INTERBUS-S ALARM
Description
The alarms regarding Interbus-S are:
Loss; if an accidental interruption of the connection occurs, this alarm is generated; the
visualization of the corresponding alarm message depends on the drive configuration.
SBI Hardware Fault; if the Interbus-S interface card is faulted, this alarm is generated; the visualization
of the alarm message depends on the drive configuration.
SBI Ram Fault; this alarm is generated if there is a fault in the Dual-Port-Ram of interface between the
drive and the InterBus-S card;the visualization of the alarm message depends on the drive
configuration.
7.2 Communication Status
In case of alarm the behaviour of the interface card depends on the communication status. The
following cases must be distinguished:
The communication between the Master and the drive has already been established; more precisely it
means that the Peripherals Communication Protocol (PCP) IS active and therefore the Initiate Service
has already successfully been carried out.
The communication between the Master and the drive has not been established yet; it means that the
Peripherals Protocol PCP is not active.
The Abort Service has successfully been carried out; this case is the same as case number two and
therefore it is treated in the same way; the Peripherals Communication Protocol is not active.
N.B. The concept of established communication makes reference to the activation of the Peripherals
Communication Protocol (PCP); it means that the Process Data Channel is active in any way and the
data exchange through this channel takes place regularly.
7.3 Alarm Recovery
The description of the behaviour takes into consideration the above-mentioned communication status; it is
necessary to remember, anyway, that what will be described depends on how the drive has been set to
handle the alarm; in the following description it is assumed that the drive totally handles the alarm of Field
Bus Loss.
1 First case of communication status
a Reaction to the alarm.
If the above-mentioned conditions are respected, in case of InterBus-S alarm the drive stops
immediately the motor, displays the alarm message and waits for its recovery; the
InterBus-S
interface card interrupts the data transfer of the Process Data Channel outcoming from the Master by
clearing the parameter Output (Index 6002h).