Siemens Stober CombiDrive CM400/3 - Manual (Page 13)

3. Operating Information English
© STÖBER plc 1997
11 05.02.01
(2) Using a combination of the internal potentiometer and a run/stop switch:
(a) Connect a run/stop switch between DIN1 (pin 5) and P15+ (pin 8) on PL800 (see Figure 4a) if
forward rotation is required. If reverse rotation is required instead, connect the switch to DIN2
(pin 6) instead of DIN1.
IMPORTANT
In either case, if a link has been fitted between pin 5 and pin 8 it must be removed before the
run/stop switch is fitted.
(b) Apply mains power. The green and yellow LEDs will illuminate to show that power is applied.
(c) Set the external run/stop switch to ON.
(d) Turn potentiometer R314 clockwise to set the required motor speed.
(e) Stop the motor by setting the external on/off switch to OFF. When the switch is set to ON
again, it will run at the speed previously set using the potentiometer.
3.3 Operation - External Analogue Control
The method of setting up the CombiDrive ® for use with external analogue voltage control is described below.
This method can use both the internal potentiometer and external analogue voltage control. It does not require
the use of an OPm2 or serial link connection.
(1) Connect a 4.7 k
Ω
potentiometer to the control terminals as shown in Figure 3 or connect pin 2 (0V) to pin 4
(AIN-) and a 0 - 10 V signal between pin 2 (0V) and pin 3 (AIN+).
(2) Ensure that a link is fitted between pin 5 (DIN1) and pin 8 (P15+).
(3) Check that voltage input is selected by ensuring that the jumper is fitted to JP301.
(4) Refit the cover, tighten the cover screws to the correct torque and then apply mains power to the inverter.
(5) Turn the external potentiometer (or adjust the analogue control voltage) until the desired frequency is
achieved. The unit will not switch on until a minimum of 2 V has been applied.
Note
The frequency set by the external voltage is added to the frequency set by the internal potentiometer.
As with Basic Operation (2), a run/stop switch can be used to start and stop the motor, or the direction of
rotation can be changed by connecting the link to DIN2 instead of DIN1.
3.4 Operation - Digital Control
This method of operation requires either a Clear Text Display (OPm2) or a serial link connection. For a basic
startup configuration using digital control, proceed as follows:
(1) Remove the link that connects control terminal 5 to terminal 8 (if one has been fitted).
(2) Connect control terminal 5 to terminal 8 via a simple on/off switch. This sets up the inverter for clockwise
rotation (default). If counter-clockwise operation is required, connect a switch between control terminals 6
and 8.
(3) Connect the OPm2 or serial link to SK200. Refit the cover, tighten the cover screws to the correct torque
and then apply mains power to the inverter.
(4) Set parameter P006 to 000 to specify digital setpoint.
(5) Set parameter P005 to the desired frequency setpoint.
(6) Set the external on/off switch to ON or press the ON button on the OPm2 (set P007 = 001 to use the
OPm2). The CombiDrive
® will now run at the frequency set by P005.
3.5 Stopping the Motor
Via the external on/off switch: setting the switch to OFF overrides the setting on the potentiometer and
causes the motor to come to a controlled stop.
Via the potentiometer: turning the potentiometer counter-clockwise until the input voltage drops below 1 V
causes the motor to slow to a stop.