ROB-24H
Relay Output Board
FEATURES
FUNCTIONAL
DESCRIPTION
Model
ROB-24 and ROB-24H are a 24-channel relay-output cards that
can be controlled by digital inputs from Chassis Plans IOD-Series
digital I/O cards or other manufacturer's digital output
cards. The card can be powered by either +5 VDC (ROB-24
or ROB-24H) or by 125 VAC (ROB-24-1 or ROB-24H-1).
In the former case, we can also supply a seven-foot cable,
CAB-MLX, that mates with standard molex connectors used
in personal computer distribution. For operation from AC-power
inputs, the "_1" versions of these cards, screw
terminals for the AC-power input and a power transformer
are included. The cards also contain 24 LED's, one associated
with each relay. These illuminate when their associated
relays actuate.
Each
relay provides normally-closed and normally-open contacts
(SPDT). If you need dual Form C contacts (DPDT), you may specify
ROB-24-2 or ROB-24H-2.
I/O
connectors for 50-pin connections (from Chassis Plans' IOD-Series
cards) and 37-pin connectors are provided. The latter provide
means to use these relay cards with other manufacturer's cards
if they use 37-pin connections. Interconnection to the digital
output card can be via Chassis Plans' model CAB50F-xx ribbon cable
to Chassis Plans' I/O cards or via CAB37-xx ribbon cable to other
I/O cards. The relays are actuated by a 5-volt logic signal
applied to appropriate pins of either the 50-pin or the 37-pin
connector. If the digital-output card to be used has an unbuffered
output (e.g., direct output from a type 8255 Programmable
Peripheral Interface chip), then specify ROB-24-3 or ROB-24H-3.
(Note: When Option 3 is selected, the relays will be
actuated when power is applied to the card.) Thus, by
use of ROB-24 or ROB-24H, you can realize simple, inexpensive
control of heaters, fans, lights, etc.
The
ROB-24 may be interfaced to any port of any Chassis Plans IOD-Series
card. Normally, digital inputs are pulled down to ground through
680 ohm resistors. However, if you prefer that they be pulled
up to +5VDC, you can specify ROB-24-5 or ROB-24H-5.
You can have multiple options in the card. For example, if
you need AC-powered capability, DPDT relay output connections,
and signals will come from an unbuffered digital output card,
then the model number becomes: ROB-24-1-2-3
PROGRAMMING
Programming
ROB-24 is done by simple OUT statements. For example, if the
card is to be controlled by an IOD-24E located at base address
hex 310, BASIC statements would be used as follows:
10
OUT &H313,& amp;H80
- 'Sets
the ports to use as outputs
20
OUT &H310,1
- 'Activates
port A, bit 0 (relay 0)
30
OUT &H311,16
- 'Activates
port B, bit 4 (relay 21)
PIN
CONNECTIONS
Two
connectors are provided for control inputs; one in 50-pin
format and one in 37-pin format. For 50-pin connectors, the
mating connector is AMP 1-499776-0 or equivalent. For 37-pin
connectors, the mating connector is an AMP 747304-1 or equivalent.
SPECIFICATIONS
Relays
- Quantity
and Type: 24 ea., SPDT, Form C. (DPDT optional.)
- Contact
Material: Gold overlay silver.
- Max.
Switched Current: 2A DC, 1.25A AC.
- Max.
Carry Current: ROB-24: 2A AC or DC; ROB-24H: 4A
AC or DC
- Max.
Switched Voltage: 125 VDC or ACrms.
- Max.
Switched Power: 30 VA on ROB-24, 360 VA on ROB-24H.
(Note: Good safety practice should be followed
if AC voltages are to be switched at the relays.)
- Actuate
Time: ROB-24: 6 mSec; ROB-24H: 20mSec (including
bounce).
- Release
Time: ROB-24: 8 mSec (including bounce); ROB-24H:
10 mSec (including bounce).
- Mechanical
Life Expectancy: 20 million operations minimum.
Environmental
- Operating
temperature Range: 0o to 50oC.
- Storage
Temperature Range: -30o to +105oC.
- Humidity:
45 to 85% RH, non-condensing.
Power
Consumption (all relays ON)
- 5
VDCPower: ROB-24: 2A, ROB-24H: 4A max.
- 115
VACPower: ROB-24: 310mA, ROB-24H: 390 mA max.
Physical
- Card
Dimensions: 16" long x 4.75" wide x 2"
high.
- Weight:
2.25 lbs. max. (for Model ROB-24-1-2).
- Screw
Terminal Wire Spacing: 0.200" (5 mm).
- Screw
Terminal Wire Sizes: 12 to 22 AWG.
Regulatory
Compliance 
Declaration of Conformity, and Test Reports are on file. Users
must use appropriate shielded cables.
| Part
Number |
Price(USD)
|
| ROB-24H |
349.00
|
| Option 1 |
30.00
|
| Option 2 |
30.00
|
| Option 3 |
5.00
|
| Option 4 |
15.00
|
View / Download Manual (in
.PDF format)
