Barber-Colman MACO Series User Manual

1640-IN-031-C-08
Page 36 of 104
Eurotherm/Barber-Colman
MACO Series Controller Installation
5. Installing & Wiring the Analog I/O Board
Important! Note that depending on the application, not all sensors need be used.
Refer to the "Application Guide for Sensors & Analog I/O Signals" at the back of
the Controller Installation & Wiring section.
1. Make sure the jumpers are correctly positioned.
2.For ease of wiring, remove the daughterboard (connector assembly) from the
motherboard by removing the four screws.
3. Use braided shield cables and connect as shown in Figures 5.1, 5.2 and 5.3. To
avoid overcrowding, strip cable jackets about 1/2" below the edge of the board,
make the connections and then heat shrink the wires. Add strain relief as required.
If overbraid has been used, terminate both the internal braided shield and the
overbraid at the ground distribution block (see Figure 5.3).
4.Reconnect the daughterboard and secure with the four screws.
NOTE: Signal conditioners may be required to convert signals to the proper analog
voltages. These signal conditioners must be powered from an external regulated
supply and provide a nominal 0-10 Vdc output.
Analog I/O Card Specifications
Inputs (6)
Voltage:
0 to +10 Vdc (Nominal)
Maximum Input:
± 15 Vdc without damage
Offset:
-2 to +10 Vdc
Type (3 Inputs):
0 to +10 Vdc; Position, Potentiometer,
LVDT, Ultrasonic devices, or High Level
Pressure Transducers
Excitation Voltage:
+10 Vdc @ 20 mA
for potentiometers
Potentiometer Resistance:
2k to 10k Ohms
Type (2 Inputs):
Pressure: 0 to +10 Vdc (Nominal) from
high level output pressure transducer
Type (1 Input):
Tachometer: +15 Vdc maximum input at 1 kHz,
+12 Vdc excitation at 10 mA provided (see application guide)
Note: When counting boards in multi-rack
systems (for switch settings, RLD/screen pro-
gramming) count each control rack separately.
Class 2 Wiring must be separated a minimum of
1/4 inch from any Class 1 conductors.
Input Resolution:
12 Bits
Outputs (4)
Voltage:
0 to +10 Vdc or 0 to -10 Vdc
(Control Relay Selectable)
Load Impedance:
3500 Ohms Minimum
Output Resolution:
13 Bits

Barber-Colman MACO Series Specifications

General

Brand	Barber-Colman
Model	MACO Series
Category	Controller
Language	English