Information

www.weg.net
Timing Relays (RTW/ERWT)
7
Note: 1) Not available in the version with supply voltage of 380-440 V ac
Example: RTW-ET
Example: RTW-RD
Example: ERWT-MF1
RTW RE / PE / CIL / CID RD / CI / CIR RDI ET
0.1 - 1s
1)
0.3 - 3s 0.3 - 3s
3 - 30s
0.3 - 3s 1 - 10s 1 - 10s
1 - 10s 3 - 30s 3 - 30s
3 - 30s 6 - 60s 6 - 60s
6 - 60s 10 - 100s 10 - 100
10 - 100s 30 - 300s 30 - 300s
30 - 300s 3 - 30min 1 - 10min
3 - 30min - -
Single Timing
Multifunction
Multiple Timing
RE / PE / CID / CIL / RD ET
0.1s - 10min
0.1s - 10min
0.2s - 150h
The RTW multiple timing relay has two
adjustments via dials that must be
combined to define the desired timing.
First you should select the time range in
the upper dial and then the multiplier in
the lower dial; thus the result of the
multiplication of the selected values will
be the time to be counted.
Notes: The RTW with multiple timing function must be reset at each new time range adjustment.
Changing the time range during the timing will have no effect.
Time Range Adjustment
RTW - RE / PE / CI / CIR / CIL / CID / RD RTW - ET
Red LED Output ON Time Y
Green LED Supply voltage Time Δ
RTW - RE / PE / CIL / CID / RD RTW - ET
Red LED Output ON Time Y
Green LED Supply voltage Time Δ
The ERWT multifunction relay
has dials, enabling the
adjustment of the desired MF1 or
MF2 function and the timing
range (0.1s - 10 days).
See the content of the MF1 and
MF2 function in the specification
table.
Notes: The function must be selected before energizing the timing relay; changes in operation will have no effect.
Changes made to the time configuration during the timing will be effected.
ERWT-MF1 / MF2
Red LED Output ON
Green LED Supply voltage
ERWT - MF1 / MF2
0.1s - 10 days
U/T
R1
1,0
0,8
10min
3min
300s
10s
8
6
4
2
100s
30s
10s
3s
0,6
0,4
2