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USER'S MANUAL FOR 16 CHANNEL RELAY/24V OUTPUT BOARD

16 Channel Relay/24V Output board
Product Code: A16RELAY/24V
 
INTRODUCTION
The 16 channel relay/24V output board provides 16 Single Pole Double Throw (SPDT) relays to drive 16 digital output lines. Each relay channel can be used to control ON / OFF of external devices, to drive external high power relays, to activate alarms etc. There are 16 LED indicators correspond to 16 relays, when relay is energized, the corresponding LED is light. The power source is provided from +12V or +24V external power supplier.


The features of 16 Channel Relay/24V Output Board are:
1.
 Support 16 relay output channels.
2.
 LED indicates when relay is energized.
3.
 Power is provided from 12VDC or 24VDC external power supplier.
4.
 Built in screw terminals for easy wiring.
5.
 The Normal Open (NO), Normal Close (NC), and Common contacts (COM) of each relay are brought out to the screw connector.
6.
 Max contract rating: 250VAC 10 Amp, 30VDC 10Amp.
7.
 Operate (set) time: 15ms max.
8.
 Release (reset) time: AC 10ms max, DC 5ms max.
9.
 Max Operating voltage 380VAC or 125VDC, and max operating current 10A.
10.
 Max switching capacity 2500VA 300W.
11.
 DC coil 24VDC for 1100 ohm resistance or 12VDC for 275 ohm resistance.

 
The package includes following item

The package contains:
1.16 channels relay/24V output board. 24VDC coil type or 12VDC coil type.
2.One 26 pins flat cable.
3.User's manual.
4.Warranty form.


HARDWARE CONFIGURATION
2.1 Configuration For Jumper
Before you use the 16 channels relay/24V output board, you must ensure that the power supplier and connectors are set correctly. Observe the figure in the follows, the proper settings for the 16 channels relay/24V output board is described in the following.

 
1.
 Internal / external power selection.
 
 JP-1 is used to select internal or external power supply, when JP1-1 and JP1-2 is short; the power is supplied by PC bus, where 12VDC is supplied. When JP1-2 and JP1-3 is short, external power supplier supplies the power. Up to 24VDC for external power. For 12VDC coil relay, maximum 12VDC power source is accepted, for 24VDC coil relay, only external power supplier can drive the relay.

Jumper

Power Source

Pin 1 and pin 2

Internal PC bus

Pin 2 and pin 3

External power source


2.
  External power supplier

TB1 is used to connect 12V or 24V external power, the configuration is shown in the follows. Please note that, for 24VDC coil type relay, the 24V external power is used; for 12VDC coil type relay, the 12V external power is used.



The input voltage is 12V (+/-) 1V, and the power consumption for each 16 Channel relay output Board is 0.55 amp

3.
  Pin Assignments of Each Relay

TB2 to TB17 are connectors for each relay. The pin assignment of each relay is shown in the following.


Normal Open Normal Close Common contacts

2.2 Signal Assignments

1. Signal assignment of 26 pins flat cable

The 26 pins flat cable connector is connected to digital output interface card such as: industry control, TTL I/O, 8255 I/O, connector is shown in the following.
Pin
Description
Pin
Description
No.

No.

1
+12V
14
GND
2
GND
15
GND
3
Line00
16
Line01
4
Line02
17
Line03
5
Line04
18
Line05
6
Line06
19
Line07
7
Line08
20
Line09
8
Line10
21
Line11
9
Line12
22
Line13
10
Line14
23
Line15
11
CE
24
CE
12
+5V
25
GND
13
-12V
26
GND

2.3 Circuit Diagram of Each Relay
The pin assignment and circuit diagram or each relay is shown in the follows

Terminal arrangement/

Internal connections (Bottom view)
Pin No.
Specification
1
+24V
2
COM
3
NC
4
NO
5
GND
Catalog
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