Grundfos IO 112, Installation And Operating Instructions Manual

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6
CONTENTS
Page
1. Symbols used in this booklet 6
2. General description 6
2.1 General installation data 7
3. Applications 7
3.1 Potentially explosive environments 7
4. Identification 7
4.1 Nameplate 7
4.2 Type key 7
5. Storage 7
6. Installation 7
6.1 Location 7
6.2 Mounting 8
6.3 Electrical connection 8
7. Settings 9
7.1 DIP switches 9
7.2 Potentiometer 12
8. Installation examples with alarm limit,
limits 1 and 2
13
8.1 Example 1, filling application 13
8.2 Example 2, draining application 13
8.3 Example 3, application with rising
temperature
14
8.4 Example 4, application with falling
temperature
14
9. Start-up 15
10. Indication 15
10.1 Alarm resetting 15
11. Maintenance 15
12. Service 15
13. Fault finding 16
14. Electrical data 17
15. Dimensions 18
16. Disposal 18
1. Symbols used in this booklet
2. General description
The IO 112 is a measuring module and a 1-channel
protection unit for use in connection with the MP 204
motor protection unit. The module can be used for
protection of pump against other factors than the
electrical conditions, for instance dry-running. It can
also be used as a stand-alone protection module.
The IO 112 interface has
• three inputs for measured values
• one potentiometer for setting of limits
• indicator lights indicating the
- measured value of the input
- value of the limit set
- alarm source
- pump status.
Fig. 1 IO 112 module
Prior to installation, read these installation
and operating instructions. Installation and
operation must comply with local regula-
tions and accepted codes of good prac-
tice.
Instructions with this symbol require
special attention. If the instructions are not
followed, there is a risk of personal injury.
TM
03
55
83
39
06
Pos. Description
1 Reset button
2 Indicator light for pump status
3 Indicator light for analog input (AI)
4
Indicator light for Pt1000 temperature sensor
(PT)
5 Indicator light for counter (CNT)
6 Indicator lights indicating value
7
Potentiometer for setting the alarm limit and
limits 1 and 2
8 Terminal for alarm relay
9
Terminal for analog and digital inputs and
outputs
10 Terminal for supply voltage (24 VAC/24 VDC)
11 Terminal for connection of sensors
12 Terminal for GENIbus (RS485)
13 Terminal for digital outputs
14 DIP switch for configuration
PE T1 T2 G1 A1 G2 A2 K1 K2 R1 R2
P1 P2 P3 P4 P5
ON DIP
1 2 3 4 5 6 7 8 9 10
8 9 10
11
7
12
3
4
5
6
14
2
13
1
IO 112
Reset
15
90
75
60
45
30
120
100
80
60
40
20
600
500
400
300
200
100
% C Pulse
o
AI PT CNT
A Y B
D1 D2 D3 D4 D5 D6 D7 D8