Installation, Operation and Maintenance manual
23
WSO Flex
CONTROLLER, ELECTRICS AND PNEUMATICS
Controller terminal allocation plan
Terminal No.
Description
1
24 V DC / Motor overload
2,3
External ON (closed = on, open = off; if contact is closed and the
controller is running, stop with I/O button will be possible; To restart the
Fan by pressing the I/0 button while the “External ON” contact is present,
the External ON contact has to be opened.)
4,5
Connection to EBM Papst EC fan
4 = PWM out 5 = PWM GN
6,7
Alarm relay contact, NO
8
Input motor alarm
9, 10, 11
Pot. free contact motor operation
12, 13
Connection motor contactor
14
PE, protection earth for supply
15
PE, protection earth for EC motor, 3~ motor
16
L1 connection (230 V version) / L1 (400 V version) for supply
17
L2 connection 400 V version for supply
18
N wire (230 V version) / L3 (400 V version) for supply
19
L1 for motor
20
L2 for motor
21
L3 (or N for 230 V) for motor
Sensor
Filter
D
P1
Main filter ±3500 Pa 1%
D
P2
HEPA filter ±3500 Pa 1%
DP alarm set values can be found in datasheet of WSOflex
