CONTREX MLP-Trim - Manual (Page 31)

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OUTPUTS
Speed Command Out
(J3 pins 1, 2)
Speed Command Out is an isolated
analog output signal that is sent to
the motor drive to control the speed
of the motor. Wire the Speed
Command Out into the speed signal
input of the drive. If the motor drive
has a potentiometer speed control,
remove the potentiometer
connections and wire the Speed
Command Output to the
potentiometer wiper input. The
MLP–Trim's isolated common should
always be connected to the drive
common.
Figure 2-17 Speed Command Out
Do not connect the Drive Isolated Common to other
logic commons
*
Digital Output 1 (J6 pin 15, 17)
The Digital Output 1 can be programmed to activate as a function of various alarm
conditions or as a function of the drive enable logic. Refer to CP-10 for functional
allocation of Digital Output 1.
NOTE: This is an open-collector relay driver. For specification details, see References:
Appendix A - MLP–Trim Specifications . Use an external DC power supply to
power the relays. Free-wheeling diodes are incorporated internally in the MLP–
Trim and do not need to be added externally.
MOTOR DRIVE
1
2
J3
SIGNAL INPUT
Speed Command Out
Isolated Common
DRIVE COMMON
*