Grundfos MAGNA Notice D'installation Et D'entretien page 4

CONTENTS
1. General description
2. Connection
3. Mounting
3.1 Connecting the cables
3.2 Mounting the module
4. External start/stop
5. Signal relay
5.1 Fault indication
5.2 Ready indication
5.3 Operating indication
5.4 Functional diagram
6. Priority of settings
7. Fault finding chart
7.1 Checking the module
8. Technical data
Prior to installation, read these installation and operating instruc-
tions. Installation and operation must comply with local regulations
and accepted codes of good practice.
1. General description
The relay module is an expansion module for circulator pumps GRUNDFOS
MAGNA 25-60, 25-100, 32-60, 32-100, 40-100, 50-100.
Note: The relay module cannot be used for MAGNA D 40-100 (twin-head
pump).
The relay module is used for the control and monitoring of the pump. The
pump can be started/stopped via an external relay and give fault, ready or
operating indication. The functions can be utilised via an external control
system, e.g. a building management system.
The relay module offers the following functions:
• External start/stop, see section 4.
• Fault, ready and operating indication via signal relay, see section 5.
2. Connection
The electrical connection and protection must be carried out in accordance
with local regulations.
4
Page
4
4
6
6
7
8
8
8
9
9
9
10
11
12
12