8
745.089 | 11.30
EN
3.3.1
Position of the connection terminals
Fig. 3: Terminal clamps in the lower part of the controller (terminal cover removed)
Power connection
terminal block:
L
1x phase conductor (mains input)
R1
1x output (TRIAC, for pump)
N
2x neutral conductor (common neutral conductors for mains power input
and output)
Note
Output
R1
is protected by an electronic fuse.
Protective conductor
terminal block:
PE
4x protective earth (common protective earth for
power connection
terminal block)
Signals
terminal block:
PWM
R1
1x control output (for controlling a high-efficiency pump)
2x mass connection (common mass)
X
not used
A 1x 4-pin straight connector socket (for polarity-safe Molex plug to Grundfos Direct
Sensors
TM
VFS or RPS
*)
)
B 1x pin strip, for internal use only
Cable openings on the rear side of the casing
Upper strain relief clamps (2 identical plastic links, each with 2 strain relief clamps,
supplied in the scope of delivery)
Lower strain relief clamps
Cable openings at the bottom of the casing
*)
Grundfos Direct Sensors
TM
is a registered trademark of the Grundfos group.
Summary of Contents for TF B001
Page 23: ...23 745 089 11 30 EN Notes...
Page 24: ...24 745 089 11 30 EN 745089...
