Wilo Control MS-L Series User Manual

en Installation
24 WILO SE 2020-05
6.5.9 High water alarm connection
NOTICE
Do not apply external voltage!
An external voltage which is applied destroys the component.
GL
WSK
-P2
WSK
-P1
SL
10987654321
HW
HWGLWSK
654321
3
3
Control MS-L1...
Control MS-L2...
Fig.13: Terminal strip sensors: High water
alarm
Control MS-L.../MS-L...-O
Install a separate float switch for monitoring the high water level:
ƒ Open: no high water alarm
ƒ Closed: High water alarm
Insert the connection cables laid by the customer through the threaded cable glands
and secure. Connect the wires to the terminal strip according to the connection dia-
gram.
Switchgear High water alarm (HW)
Control MS-L1...
Terminal 5/6
Control MS-L2...
Terminal 9/10
NOTICE!A monitoring device for the high water level is recommended as an addi-
tional fuse protection for the system.
Control MS-L...-LS
The high water level is monitored by the rod float sensor. A separate switching point is
stored in the set of parameters for this purpose. No additional float switch is required.
6.5.10 Collective fault signal connection
(SSM)
DANGER
Risk of fatal injury due to an external electrical current source!
The power supply comes from an external source. This voltage is also present at the
terminals when the main switch is switched off! There is a risk of fatal injury! The
power supply must be disconnected from its source before commencing any work!
Electrical work must be carried out by a qualified electrician in accordance with the
locally applicable regulations.
3
3
Control MS-L1...
Control MS-L2...
SSM
987
SSM Alarm
161514131211
Fig.14: Terminal strip sensors: SSM
A fault message is issued for all pumps (SSM) via a separate output:
ƒ Contact type: potential-free changeover contact
ƒ Contact load:
– Minimum: 12VDC, 10mA
– Maximum: 250VAC, 1A
Insert the connection cables laid by the customer through the threaded cable glands
and secure. Connect the wires to the terminal strip according to the connection dia-
gram.
Switchgear Normally open contact
(NO)
Normally closed contact
(NC)
Control MS-L1...
Terminal 8/9 Terminal 7/8
Control MS-L2...
Terminal 12/13 Terminal 11/12
6.5.11 Connection external alarm signal
for high water alarm
DANGER
Risk of fatal injury due to an external electrical current source!
The power supply comes from an external source. This voltage is also present at the
terminals when the main switch is switched off! There is a risk of fatal injury! The
power supply must be disconnected from its source before commencing any work!
Electrical work must be carried out by a qualified electrician in accordance with the
locally applicable regulations.

Wilo Control MS-L Series Specifications

General

Brand	Wilo
Model	Control MS-L Series
Category	Control Unit
Language	English