Ross Controls ROSS MODULAR I - Manual (Page 44)

44 © 2012, ROSS CONTROLS ® . All Rights Reserved.
Valve Driver Module
RPSSV32A
The RPSSV32A valve driver module provides an
interface between the Serial Bus system and the valve
assembly. This module will always be the last module on
the Serial Bus. It controls 32 digital outputs at 24VDC.
Valve Driver Module Specifications
RPSSV32A
Outputs per Module 32, sourcing
Voltage Drop, On-State Output, Maximum 0.2VDC
Voltage, Off-State Output, Maximum 28.8VDC
Voltage, On-State Output,
Maximum
Minimum
Nominal
28.8VDC
10VDC
24VDC
Output Current Rating 200 mA per channel, not to exceed 6.0 A per module
Output Surge Current, Maximum 0.5 A for 10 ms, repeatable every 3 seconds
Current Leakage, Off-State Output, Maximum 0.1 mA
Current, On-State Output Minimum 200 mA per channel
Output Delay Time OFF to ON, Maximum 1 0.1 ms
Output Delay Time, ON to OFF, Maximum 1 0.1 ms
External DC Power Supply Voltage Range 10 to 28.8VDC
External DC Power Supply Voltage Nominal 24VDC
1. OFF to ON or ON to OFF delay is time from a valid output “on” or “off” signal to output energization or de-energization.
Power Specifications
Part Number
Power Supply
Input Voltage,
Nom.
Operating
Voltage Range
Field Side Power
Requirements,
Max.
Power Supply
Inrush Current,
Max.
Input
Overvoltage
Protection
Power Supply
Interruption
Protection
RPSSCDM12A
24VDC 10...28.8VDC
24VDC
(+20% =
28.8VDC)
@ 400 mA
6 A for 10 ms
Reverse polarity
protected
Output voltage
will stay within
specifications when
input drops out for
max. load. RPSSCDM18PA
RPSSCCNA
RPSSCENA
RPSSCPBA
RPSSSE24A
Power units are divided into two categories:
• Communication adapters with built-in power supply (dc-dc)
• Expansion power supply
Step 3
Select the Appropriate Power Unit
Selecting a Power Supply Unit
Serial Bus adapters have built-in PointBus power
supplies. All Serial Bus modules are powered from
the PointBus by either an adapter or expansion power
supply.
Depending on the valve selection, it can control up to 32
single solenoid valves or 16 double solenoid valves.
Serial Bus System