Functions - Wilo Control MS-L Installation And Operating Instructions Manual

Control MS-L2...
SSM Alarm
3
11 12 13 14 15 16
Fig. 15: Terminal strip sensors: external alarm
signal for high water
6.6

Functions

Inputs/outputs
Internal buzzer
Pump kick
Service interval indicator
Monitoring operating parameters
Follow-up time
Adjustable switching points for pump ON and high water*
6.6.1 Internal buzzer
ON DIP
8
1 2 3 4 5 6 7
Fig. 16: DIP switch 1: internal buzzer
6.6.2 Pump kick
ON DIP
8
1 2 3 4 5 6 7
Fig. 17: DIP switch 1: Pump kick
6.6.3 Service interval indicator
ON DIP
9
1 2 3 4 5 6 7
Fig. 18: DIP switch 2: Service interval indicator
Installation and operating instructions • Wilo-Control MS-L • Ed.02/2022-05
An external alarm signal (horn, flashing light, etc.) can be connected for the high water alarm:
• Contact type: potential-free changeover contact
• 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 se-
cure. Connect the wires to the terminal strip according to the connection diagram.
Switchgear
Control MS-L1...
Control MS-L2...
The switchgear is equipped with the following functions. All functions are switched off at
the factory. The functions must be switched on as required.
Key
• = available, − = not available
* The switching points can be selected from eight sets of parameters for the respective lift-
ing unit.
The internal buzzer can also issue audible warning messages in addition to the visual indic-
ator. Switch the internal buzzer on/off via DIP 7 on DIP switch 1:
• "ON" position: Buzzer on
• "OFF" position: Buzzer off
To prevent prolonged standstill periods for the connected pumps, a periodic test run can be
performed (pump kick function). A 2 s test run takes place after a standstill period of 24 h for
the respective pump.
Switch the pump kick on/off via DIP 6 on DIP switch 1:
• "ON" position: Pump kick on
• "OFF" position: Pump kick off
A service interval indicator can be switched on to increase operational reliability. The time is
recorded continuously when the mains voltage is switched on. After the interval has
elapsed, a visual signal is emitted by means of the yellow LED on the front. NOTICE! There
is no audible signal and the collective fault signal is not activated!
Switch the desired interval on and off via DIPs 4 and 5 on DIP switch 2:
• DIP 4 and 5 "OFF": Service interval off
• DIP 4 "ON": ¼ year service interval
• DIP 5 "ON": ½ year service interval
• DIP 4 and 5 "ON": 1 year service interval
Contact customer service to reset the counter.
Normally open contact (NO) Normally closed contact
−
Terminal 15/16
• • •
• • •
− − −
− − −
• • •
− − •
en
(NC)
−
Terminal 14/15
• • •
• • •
• • •
− − •
• • •
− − •
25