Kollmorgen BDS5, Инструкция по установке и настройке

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C
HAPTER
2 - I
NSTALLATION
BDS5
2-10
2.6.4.5 Wiring C2, Customer I/O
Connector C2 has a variety of signals:
•
Analog Input Pins 1, 11
The BDS5 accepts an analog input as an option. This
option is specified when you order your system. If
you use the analog input, then the encoder input is not
available. If you use the analog input, refer to the
User’s Manual paragraph 4.11 for a program that
configures the BDS5 as a velocity drive.
The input is scaled for ±10 volts = full scale. Input
impedance is > 20 k Ohm. The analog input is
differential; that is, the input voltage is taken to be the
voltage at Pin 11 minus the voltage at Pin 1.
Differential (two-wire) signals have higher noise
immunity than single-wire signals, since noise picked
up by the wires is eliminated when the two voltages
are subtracted.
Typically, one of the two wires will be at a voltage
nominally the same as Common. Preferably, this wire
should be connected to Pin 1. It is important to note
that swapping Pins 1 and 11 reverses the polarity of
this input.
When using the analog input you must be careful to
shield it properly. You should use shielded, twisted-
pair cable. Connect the shield to Pin 13 or 3 on
Connector C2 on the BDS5, or to the frame at the
source of the signal, or at both ends. Determining the
best shield connection is often a matter of trial-and-
error. Begin by wiring the shield only at the BDS5.
If the BDS5 is being used as an analog velocity drive,
then you must be careful to connect the analog input
with the correct polarity, since the polarity determines
the direction of rotation. If the BDS5 is being used as
a velocity drive, and a different controller is closing a
position loop, reversing the polarity of the analog
input can cause the BDS5 to run away or oscillate. BE
CAREFUL TO CONNECT THE ANALOG INPUT
SO THAT ITS POLARITY IS CORRECT!
Phase the analog input
correctly. Incorrect polarity of
the analog input can cause
excursions, oscillations, or
runaways.
•
Tach Monitor Pin 2
Tach monitor indicates velocity. It is referenced to
Common and scaled for 1000 RPM clockwise = +1
volt. This output has a 1k Ohm resistor in series and a
4700 pF filter capacitor connected to Common.
•
I Monitor Pin 4
I monitor is a Common-referenced signal scaled for
full (peak) current = 5 volts. This output has a 3.01k
Ohm resistor in series. I Monitor is always positive.
•
Common Pins 12, 14, 15
Logic Power Supply Common is provided on several
pins since it is used in several places. Do not connect
shields to Common.
•
Shield Pins 3, 13
The shield pins are connected directly to the BDS5
frame. You should connect shields from cables to the
shield pins.
•
Relay Pins 16, 17
These two pins are connected to a set of normally
open relay contacts. The contacts are open on power-
up, and close after the power-up self-tests and
autobauding. The relay is controlled by the watchdog
timer. If the contacts open once the BDS5 is running,
then there is a serious fault and you cannot depend on
the microprocessor to operate properly. Always wire
all BDS5 relays to disconnect all power in the event of
the relay contacts opening. These contacts are rated
for a maximum current of 1 Amp and a maximum
voltage of 115 volts AC or DC. The maximum
switched power is 30 Watts DC or 60 volt-amps AC.
•
CYCLE/CYCLE RETURN Pins 8, 7
CYCLE is on Pin 8; CYCLE RETURN is on Pin 7.
CYCLE is normally used to start a cycle of a user
program; it can also be used as a general purpose
input. CYCLE is optically isolated. CYCLE should
be pulled up to between 12 and 30 volts with reference
to CYCLE RETURN (not Common) to turn on, or
activate, the CYCLE input. Exceeding 30 volts could
damage this input. Observe polarity when connecting
CYCLE and CYCLE RETURN.
WARNING