2-4
Section 2 Installation
Models SLA5810/20 and SLAMf10/20
Installation and Operation Manual
X-PR-SLA5800-SLAMf-Series-RevB-PC-eng
Part Number: 541B198AAG
January, 2017
2-10 Electrical Interface
SLA Enhanced pressure controllers are controlled using analog signals or
digital control via RS485, DeviceNet or Profibus. For an analog unit the
minimum set of connections which must be made to the pressure controller
include: power , supply common, setpoint, setpoint common, output
signal and output signal common. All signals are supplied via the 15-pin 'D'
connector.
SLA Enhanced pressure controller electrical interface is designed to facilitate
low-loss and quiet signal connections. Separate returns (commons) are
supplied for the analog setpoint, analog flow signal, and the power supply.
These commons are electrically connected together on the PC board.
Voltage I/O Version
• Signal Common
• Signal Output
• +13.5 to +27 Vdc Supply
• Setpoint Input
• Setpoint Common
• Supply Common
For a DeviceNet unit, 11-25 Vdc power and communication I/O are supplied
via the standard 5-pin Circular Micro-Connector.
For a Profibus unit, the power and analog signals are via the 15-pin 'D'
connector. The Profibus communication signals are via the auxiliary 9-pin 'D'
connector.
Refer to Figure 2-1 for analog/RS485 pin connections, Figure 2-2 for Profibus
pin connections and Figure 2-3 for DeviceNet pin connections.
Refer to Figures 2-4, 2-5 and 2-6 for typical electrical I/O configurations.
(The Brook’s Pressure Controller acts as a current sink to a setpoint input
signal. The 0/4-20 mA setpoint signal should be “driven” into the MFC input by
a controlled current source. Reference Brook’s device specifications for the
setpoint input impedance.)
(The Brook’s Pressure Controller acts as the current source when providing a
0/4-20 mA output signal to the load. The output signal is “driven” by the MFC
into the customer load. Reference Brook’s device specifications for maximum
load capacity.)
