Terminal Master/Slave Function - INVT Goodrive350-19 Series Operation Manual

Goodrive350-19 series VFD for crane Commissioning guidelines
Low-speed
brake
High-speed
High-speed
brake
brake
Fan
Fan
Lifting motor 1
Lifting motor 2
Figure 5-18 Mechanical structure diagram 2
Since master/slave speed synchronization requires speed consistency, the VFD must use the
closed-loop mode. Therefore, only master/slave mode 4 in the CAN communication master/slave
mode can be used.

5.14.2 Terminal master/slave function

A. Using the VFD high-speed pulse input terminal HDIA and high-speed pulse output terminal
HDO to implement simplified master/slave control
The wiring diagram is as follows.
Master Slave
VFD
VFD
HDO
HDIA
COM
COM
1. Terminal master/slave mode a
The master adopts the speed control mode and sends the ramp frequency to the slave HDIA terminal
through the HDO terminal. The slave adopts the speed control mode and the frequency reference is
set by the HDIA terminal. Then, adjust reduction ratio of droop control P08.30 of the salve to meet
power balance.
Master parameters:
-96-