Lenze MC3000 Series - Manual (Page 36)

32 13435743_EDBM301_v14 .0
MOP - MOTOR OPERATED POT
TB-13A and TB-13B are used for this function, which sets the speed of the drive using
contacts wired to the terminal strip . Program TB-13A to select DEC FREQ, and program
TB-13B to select INC FREQ . Closing TB-13A to TB-2 will activate the DEC FREQ
function, and will cause the speed setpoint to decrease until the contact is opened . DEC
FREQ will operate when the drive is in RUN mode or STOP mode . Closing TB-13B to
TB-2 will activate the INC FREQ function, and will cause the speed setpoint to increase
until the contact is opened . INC FREQ will only operate when the drive is in RUN mode .
NOTE
If TB-13A, TB-13B, and TB-13C are all programmed to select speed
references, and two or three of the terminals are closed to TB-2,
the higher terminal has priority and will override the others . For
example, if TB-13A is programmed to select 0-10VDC, and TB-13C is
programmed to select PRESET SPEED #3, closing both terminals to
TB-2 will cause the drive to respond to PRESET SPEED #3, because
TB-13C overrides TB-13A .
14 .2 .6 ANALOG OUTPUT SIGNALS
There are two terminals that can supply analog output signals proportional to output
frequency or load . Terminal TB-10A can provide a 0-10 VDC or a 2-10 VDC signal
proportional to output frequency, and TB-10B can provide the same signals proportional
to load . The 2-10 VDC signals can be converted to a 4-20 mA signal using a resistor
in series with the signal such that the total circuit resistance is 500 ohms . Refer to
Parameters: 42 - TB10A OUT, 43 - @TB10A, 44 - TB10B OUT, and 45 - @TB10B in
Section 18 - DESCRIPTION OF PARAMETERS .
14 .2 .7 DRIVE STATUS OUTPUTS
The control board has one Form C relay at terminals TB-16, TB-17, and TB-18 . Contacts
are rated 2 amps at 28 VDC or 120 Vac .
There are also two open-collector outputs at terminals TB-14 and TB-15 . The open-
collector circuit is a current-sinking type rated at 30 VDC and 40 mA maximum . An external
power supply (30 VDC max) must be used to power the open-collector outputs . The drive
does not have a dedicated power supply for the open-collector outputs .
The Form C relay and open-collector outputs can be programmed for many different
status indications . Refer to Parameters 52 - TB14 OUT, 53 - TB-15 OUT, and 54 - RELAY .