LEESON SM-Plus Series Sub-Micro Inverters - Manual (Page 20)

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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 0-10 VDC, 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.
The exception to this is the MOP function, which requires the use of TB-13B and TB-13C. This
leaves TB-13A to be used for some other function. If TB-13A is programmed for a speed reference, and
TB-13A is closed to TB-2, TB-13A will override the MOP function.
10.7 ANALOG OUTPUT SIGNALS
Terminal TB-30 can provide a 0-10 VDC or a 2-10 VDC signal proportional to output frequency or
load, and TB-31 can provide the same signals proportional to load only. The 2-10 VDC signal can be
converted to a 4-20 mA signal using a resistor in series with the signal such that the total load resistance
is 500 Ohms. Refer to Parameters 08 and 09 in Section 15.0 - DESCRIPTION OF PARAMETERS.
NOTE: These analog output signals cannot be used with “loop-powered” devices that derive power from
a 4-20 mA signal.
10.8 DRIVE STATUS DIGITAL OUTPUTS
There are two open-collector outputs at terminals TB-14 and TB-15. The open-collector circuits are cur-
rent-sinking types rated at 30 VDC and 50 mA maximum.
The open-collector outputs can be programmed to indicate any of the following: RUN, FAULT,
INVERSE FAULT, FAULT LOCKOUT, AT SPEED, ABOVE PRESET SPEED #3, CURRENT
LIMIT, AUTO SPEED MODE, and REVERSE. Refer to Parameters 06 and 13 in Section 15.0 -
DESCRIPTION OF PARAMETERS.
The diagram below illustrates how the 12 VDC power supply at TB-11 can be used with the open-col-
lector output to drive an external relay:
DIODE SNUBBER
(1N4148 or Equivalent)
RELAY COIL
TB-14
TB-11
SM-PLUS™
TERMINAL STRIP