Specifications

36
14.2.4 SPEED REFERENCE SIGNALS
The drive allows for three analog speed reference inputs: a speed potentiometer (10,000
Ohm), 0-10 VDC, or 4-20 mA.
SPEED POT Connect the wiper to terminal TB-5A, and connect the high and low
end leads to terminals TB-6 and TB-2, respectively.
0-10 VDC Wire the positive to terminal TB-5A and the negative to terminal TB-
2. TB-5A input impedance is 200 kilohms.
4-20 mA Wire the positive to terminal TB-5B and the negative to terminal TB-2.
TB-5B input impedance is 100 Ohms.
14.2.5 SPEED REFERENCE SELECTION
AUTO/MAN vs. LOCAL/REMOTE
For the AC400 Series drive, operating in standard (non-PID) mode, AUTO/MAN refers to
speed control, and LOCAL/REMOTE refers to START/STOP control. AUTOMATIC and
MANUAL speed control selection is affected by whether the drive is in LOCAL or
REMOTE mode, as described below. Refer to Section 19.0 - AC400 PID SETPOINT
CONTROL for a complete description of drive operation when using the PID control
function.
AUT
O/MAN SELECTION IN LOCAL MODE
In LOCAL mode (keypad start/stop control), AUTOMATIC and MANUAL selection is
determined by Parameter 28 - AUTO/MAN. When Parameter 28 is set to A/M LOC or A/M
SPD, the AUTO/MAN key on the keypad is active and can be used to toggle between
MANUAL (keypad) and AUTOMATIC (0-10 VDC, 4-20 mA, or preset speeds) speed
control. This is done by pressing the AUTO/MAN key to select the desired mode, and then
pressing the ENTER key within three seconds to confirm the change.
When AUTOMATIC mode is selected, one of the TB-13 input selects must be programmed
to select the desired speed reference, and that TB-13 terminal must be closed to TB-2. The
drive will then respond to the automatic speed reference. If the contact closure is not made
between the TB-13 terminal and TB-2, the drive will remain in AUTO mode, but speed
control will default to the keypad. Therefore, if the Form C relay or open-collector outputs
are set to indicate AUTO/MAN mode, they will still indicate AUTO mode.