Lenze MCH Series - Manual (Page 65)

13435744_EDBMH01_v13 61
42 TB10A OUTPUT
The analog output signal at TB-10A is proportional to the output frequency of the drive.
This parameter selects whether that signal is 0-10 VDC or 2-10 VDC. The 2-10 VDC
signal can be converted to a 4-20 mA signal by connecting a resistor in series with the
signal such that the total circuit resistance is 500 Ohms. If set to NONE, the function is
disabled.
NOTE:
This output cannot be used with “loop-powered” devices that derive power
from a 4-20 mA signal.
43 TB10A SCALING
This parameter scales the analog output signal at TB-10A. This setting is the output
frequency that is indicated when the TB-10A output measures 10 VDC.
Example:
The drive is part of a control system that requires a 0-5 VDC signal (rather
than 0-10 VDC) that is proportional to 0-60 Hz output frequency. The
output signal is linear, so setting this parameter to 120 Hz would yield 10
VDC at 120 Hz, and 5 VDC at 60 Hz.
44 TB10B OUTPUT
The analog output signal at TB-10B is proportional to the drive load. This parameter
selects whether that signal is 0-10 VDC or 2-10 VDC. The 2-10 VDC signal can be
converted to a 4-20 mA signal by connecting a resistor in series with the signal such that
the total load resistance is 500 Ohms.
NOTE:
This output cannot be used with “loop-powered” devices that derive power
from a 4-20 mA signal.
45 TB10B SCALING
This parameter scales the analog output signal at TB-10B. This setting is the load (in %)
that is indicated when the TB-10B output measures 10 VDC.
Example:
The drive is part of a control system that requires a 0-10 VDC signal to
indicate 0-120% drive load. If this parameter is set to 120%, the drive will
output 10 VDC at 120% load (and about 8.3 VDC at 100% load).
NOTE: The output signal at TB-10B is affected by the setting of Parameter 34 -
LOAD MULTIPLY.
47 TB13A INPUT
This parameter is used to select the function of terminal TB-13A. Closing TB-13A to
TB-2 activates the TB-13A input function. The following functions can be selected:
NONE
Disables the TB-13A function.
0-10VDC Selects 0-10 VDC as the speed reference input (or setpoint source in
PID mode). The 0-10 VDC signal is wired to TB-5A (+) and TB-2 (-).
4-20 MA Selects 4-20 mA as the speed reference input (or setpoint source in
PID mode). The 4-20 mA signal is wired to TB-5B (+) and TB-2 (-).
PRESET #1 Selects PRESET #1 (Parameter 1) as the speed reference.
DEC FREQ Decrease frequency setpoint. Used with the MOP (motor operated
pot) function. Refer to Section 14.2.6 - SPEED REFERENCE
SELECTION.
REVERSE Selects Reverse motor rotation. This function can be used for cooling
tower de-icing.