4
November 2006
JP4 to position 1-2 (Refer to Dimensions/Jumper and Potentiometer Locations). Connector P2 is used
for this potentiometer with the wiper in Pin 2. The max speed limit is set with the internal speed pots MAX
A/MAX B and the minumum speed is 200Hz. A value of 10K ohms to 100K ohms should be used.
External Clock Output:
The external clock is the output of the internal pulse generator that can be used
to daisy chain other MBC25PG1(L)s together. This is an open collector output that is internally pulled up
to +5V. It is capable of sinking 10mA and when no clocks are being sent is in the logic “1” state.
Internal PG Operating Modes
A)
Stop/Run is active; Starts at base speed and runs for a while at base speed.
B)
Base/Max is active; Ramps up to max speed.
C)
Both inputs are still active; Max speed is reached (keeps running at max speed).
D)
Base/Max is inactive and Stop/Run is still active; Ramps down to base speed.
E)
Stop/Run is active; Base speed is reached.
F)
Stop/Run is inactive; Pulses stop.
Two Input Operation:
A
B
C
D
E
F
Max Speed
Base Speed
Off
Time
Speed
A)
Base/Max is active; Starts at base speed and immediately ramps up to max speed.
B)
Base/Max is still active; Max speed is reached (keeps running at max speed).
C)
Base/Max is inactive; Pulses stop.
Note:
In this mode, the PG still ramps down internally even though pulses stop; so before ramp-
ing again, 50 milliseconds must be allowed for the PG to ramp back down to base speed with the
decel adjustment set for the fastest ramp down.
Single Input Operation with No Ramping Down (JP5 Position 2-3):
A
B
C
Max Speed
Base Speed
Off
Time
Speed
July 2018
July 2018
