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SINUS/ISD 15P0082B8
USER MANUAL
4 - 9/14
4.6 4.6 THE START/STOP MODE EXPLAINED THE START/STOP MODE EXPLAINED
The default configuration below shows the Inverter in Remote control, (using the analog and digital inputs and
outputs). This example will be referred to in the following explanations.
Start/Stop Controlled Remotely
In the configuration shown, the reference value is obtained by summing ANALOG INPUT 1
and ANALOG INPUT 2. The direction of rotation is controlled by DIGITAL INPUT 3. When
the RUN input (DIGITAL INPUT 1) is TRUE, the SPEED DEMAND ramps up to the
reference value at a rate controlled by ACCEL RATE. The Inverter will continue to run at the
reference value while the RUN input remains TRUE.
Similarly when the JOG input (DIGITAL INPUT 5) is TRUE, the SPEED DEMAND ramps up to the JOG
SETPOINT at a ramp rate set by JOG ACCEL RATE (not shown in the diagram).
The Inverter will continue to run at the JOG SETPOINT while the JOG input remains TRUE.
Start/Stop Controlled Locally
The reference value is set by the SETPOINT (LOCAL) parameter. The direction of rotation is controlled by the
DIR key (forward/reverse) on the Operator Station. When the RUN key is pressed the SPEED DEMAND ramps
up to the reference value at a rate controlled by ACCEL RATE. The Inverter will continue to run at the reference
value even when the RUN key is released. Press the STOP key to “stop” the Inverter.
When the JOG key is pressed and held, the SPEED DEMAND ramps up to the JOG SETPOINT at a ramp rate
set by JOG ACCEL RATE (not shown in the diagram). Release the JOG key to “stop” the Inverter.
Interaction between RUN and JOG
Only one of these signals can be in effect at any one time; the other signal is ignored. The Inverter must be
“stopped” to change from running to jogging, or vice versa.
Start/Stop Mode Diagnostics
In the configuration shown, Start/Stop mode provides two DIGITAL OUTPUT signals (RUN and HEALTH).
The RUN signal is TRUE from the time a start command is processed until a stop sequence is completed. This
normally means the time between the Inverter starting until the power stack is quenched.
Refer to Chapter 9: “Sequencing Logic States” for a more detailed description.
The HEALTH output is TRUE when the Inverter is not tripped.
Additional diagnostic parameters are available when using the Operator Station. These are described in Chapter
6: “Programming Your Application” and Chapter 9: “Sequencing Logic States”.
DEFAULT
SETPOINT
Analog Input 1
Terminal 2
SETPOINT TRIM
Analog Input 2
Terminal 4
RUN
Digital Input 1
Terminal 7
REM TRIP
RESET
Digital Input 2
Terminal 8
DIRECTION
Digital Input 3
Terminal 9
JOG
Digital Input 5
Terminal 11
+
-
+
-
MAX SPEED CLAMP
MIN SPEED CLAMP
System Ramp Clamps
DECEL RATE
ACCEL RATE
Sequencing Logic
Reference Selection
SETPOINT(REMOTE)
LOCAL SETPOINT
JOG SETPOINT
0%
HEALTH
Digital Output 1
Terminal 13
RUN
Digital Output 2
Terminal 14
RAMP OUT
Analog Output 1
Terminal 5
+
+
SPEED TRIM
SPEED DEMAND
FORWARD/REVERSE
Key on Operator Station
+
-
SPEED SETPOINT
0%
Selected with
REMOTE SETPOINT
Figure 4- Figure 4-6 6 Portion of the Default Configuration Portion of the Default Configuration
DEFAULT