RevPi RO

Product Description

The RevPi RO is an expansion module from the Revolution Pi family and has 4 relay outputs, e.g. to connect or disconnect the power supply for connected hardware.

Components

Position	Component	Application
1	5 × status LED	LEDs
2	4 × relay output	Relay outputs
3	X4 connector	Connecting the Power Supply
4	Locking clamp	Mounting the Device on a DIN Rail
5	Ventilation Slots	Mounting the Device on a DIN Rail
6	2 × PiBridge	Connecting Expansion Modules

LEDs

The LEDs indicate different device statuses.

Power

Signal	Function
Green	The connection to the RevPi base module is established.
Flashes red	The connection to the RevPi base module is being established (initialization phase).
Red	The connection to the RevPi base module is interrupted.

OUT 1 - 4

Signal	Function
Green	Relay is switched on.
Flashes red/ green	Warning limit for switching operations is reached (relay is switched on).
Red	Warning limit for switching operations is reached (relay is switched off).

Compatible Base Modules

• RevPi Connect 5
• RevPi Connect 4
• RevPi Connect SE (left side only)
• RevPi Connect+ (left side only)
• RevPi Connect S (left side only)
• RevPi Core (all variants)

See Rules for the Arrangement of Devices.

Scope of Delivery

The scope of delivery includes

• RevPi expansion module
• PiBridge connector
• X4 connector
• 4 × 2-pin plug for relay contacts
• 2 × cover plug for PiBridge

Mounting and Connecting

The RevPi was developed for use in a control cabinet. Observe the specifications for the Intended Use and all Safety Instructions.

warning

Danger to life due to electric shock

There is a risk of fatal electric shock when working on devices in the switch cabinet with 230 V mains voltage.

▷ Work in the switch cabinet may only be carried out by qualified electricians.

▷ Before carrying out any work in the switch cabinet, switch off the power supply properly.

Carry out the mounting and connection in the following order:

1. Mount the RevPi base module and all expansion modules on a DIN rail.

2. Connect the expansion module via the PiBridge connector.

3. Connect all other devices such as sensors and actuators.

4. As the last step connect the power supply.

Configuration

The RevPi expansion modules are configured via the System Configuration with PiCtory.

Configuring RevPi RO in PiCtory

For the RevPi RO relay output expansion module, the 4 relay outputs OUT1 to OUT4 can be configured via PiCtory in the Value Editor.

▷ Start PiCtory.

▷ Insert the RevPi RO from the Device Catalog > I/O Devices into the correct slot in the Revolution Pi system on the Configuration Board .

▷ If necessary, adjust the basic configuration of the RevPi RO under Device Data.

▷ In the Value Editor configure the settings (see below).

▷ Save the configuration via File > Save as Start-Config..

▷ Restart the driver via Tools > Reset Driver.

MEM Memory Values

You can use the four memory variables in the (MEM) Value Editor to be set a threshold value for the number of switching operations for each relay output. If this threshold value is exceeded, the RevPi RO switches on the red status LED for the respective output and generates a warning at the status bit for the respective relay.

The default value is 0. A threshold value of 0 generates no warning at the status bit and the status LED is not triggered.

Recommended threshold values according to the data sheet of the relay module used:

Type of load	Voltage	Current	Recommended threshold value for warning limit
Resistive load	250 V AC	3 A	100 000
	30 V DC		100 000
	250 V AC	5 A	80 000
	30 V DC		80 000
Inductive load	250 V AC	2 A	100 000
	30 V DC		100 000
No load	0 V	0 A	1 000 000

You can query the current number of switching operations with piTest -C RO-ADDRESS.

Status Byte in the Process Image

Status

Offset: 0

Bits 0… 3 show the current warning status of relays OUT1… OUT4:1: Warning at the relay (threshold exceeded) 0: no warning