Standard Rs 485-Interface; Mco 350 Terminal X57 - Danfoss MCO 350 Operating Instructions Manual

2. Introduction

2.7.1. Standard RS 485-Interface

I/O Number
2
61
68
69

2.7.2. MCO 350 Terminal X57

I/O Number Designation
1
2
3
4
5
6
7
8
9
10
22
Designation Description
Ground RS 485 Not used
RS 485-P Not used
RS 485-N Not used
I1 - Sync-Start
I2 - Take over gear ratio
I3 - Start/Stop virtual master
I4 - Hold
I5 - Master marker input
I6 - Slave marker input
I7 - Measuring of the master marker
interval
Home switch
I8 - measuring of the slave marker
interval
I8 - VLT mode selection
Gear ratio 2 0
Gear ratio 2 1
®
MG.33.Q1.02 - VLT
Syncronising Controller MCO 350 Operating
Description
Start and stop of synchronisation. Input
1 must be toggled if synchronisation
was interrupted by an error or by input
27 (motor coast). Behaviour at stop can
be selected via parameter 1901.
Activates the gear ratio selected at Ter-
minals 9 and 10.
Test run; Program 1: Start test run
with virtual master. Synchronous op-
eration; Program 2: The virtual mas-
ter is accelerated up to the set pulse
frequency, or stopped, with the set
ramp time.
The drive is held at a programmable
(parameter 1903) speed, or the current
speed (parameter 1902 = 1). Synchro-
nous control is not activated.
When using external marker signal for
the master drive it must be connected
to this input.
When using external marker signal for
the slave drive it must be connected to
this input.
Test run; Program 1:
Measuring of the master marker interval
is started.
Synchronous operation; Program
2:
If a home position is to be attained, the
home switch must be connected here.
The signal must show a rising edge
Test run; Program 1:
Measurement of the slave marker inter-
val is started.
Synchronous operation; Program
2:
Switches the VLT to normal frequency
converter operation. The settings for
this operating mode are to be made in
Parameter set-up 2. Refer to the VLT
Automation Drive Product Manual.
Gear ratio least significant bit
Gear ratio most significant bit
is a registered Danfoss trademark
Instructions