Relay Card Connections - Hach sc1000 User Manual

Installation
Figure 20 Expansion Card Ports
10
1. Relay Card
2. Relay wiring information
3. Field-bus or mA Output or Input Card
4. Field-bus or mA Output or Input card wiring information
5. mA Output or Input Card

3.6.1 Relay Card Connections

网址：www.mamots.com
24
1 2 3 4
Relay Module YAB022
PROFIBUS-DP YAB020
1
5V
Relay 1
2
3
B R
IN
SPST-NC
3 5 S2
B OUT
250VAC 5A Relay 2
4 R
125VAC 5A
4
A
5 IN
125VDC 0,15A R
6 S2
A OUT
Relay 3
30VDC 5A
6
7
7 SC 1000
Relay 4
8 BUS
YAB020
PROFIBUS-DP
0000000
YAB022
Relay
0001439
1 2 3 4 5 6 7 8 9
DANGER
Relays must either be wired as low or high voltage.
DANGER
Relay loads must be resistive. User must externally limit current to the relays to
5 Amps by use of a fuse or breaker.
The relay connector accepts 18–12 AWG wire (as determined by load application). Wire
gauge less than 18 AWG is not recommended.
If the instrument is equipped with the relay card option, the instrument will include 4
relays, each with one normally closed contact. The relays can switch maximum 250 VAC,
5A (normally closed). Each relay can be configured for limits, status, or timer.
Refer to the Plug-in Expansion Card Instruction Sheet for information on installing the
relay plug-in expansion card.
1. Remove power from the instrument. Remove the probe module cover.
2. Remove the screws on the plastic relay cover. Remove the plastic cover
(Item 10, Figure 20).
5 6 7 8
Input Module YAB018 Output Module YAB019
Analog or Digital
R=180
1 +
0...20mA Analog Analog
1 1 2
+ +5 V max 500 - Output 1 Output 1
JP
0...20mA R L H R
- 2 2 3 +
0...20mA Analog Analog
3 3 max 500 4 Output 2 Output 2
+ +5 V -
JP
0...20mA R L H R
- 4 4 5 +
0...20mA Analog
5 5 max 500 6 Output 3
+ +5 V -
JP
0...20mA R L H R
- 6 6 7 +
0...20mA Analog
7 7 +5 V max 500 8 Output 4
+ -
JP
0...20mA R L H 8 R
- 8 9
9 9
YAB018 YAB019
Input Output
0000540 0000345
1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9
6. mA Output or Input wiring information
7. mA Output or Input Card
8. mA Output or Input wiring information
9. Main High Voltage Barrier
10. Relay Voltage Barrier
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9
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