Datasheet

ESG 3.8
Multifunctional time delay relay
MFT IU14S, IU24S
Function descriptions
E - Delay on
When the supply voltage U is applied, the set interval t begins
(green LED U/t flashes). After the interval t has expired
(green LED U/t illuminated) the output relay switches into on-
position (yellow LED illuminated). This status remains until the
supply voltage U is interrupted. If the supply voltage U is
interrupted before expiry of the interval t, the interval already
expired is erased and is restarted when the supply voltage U
is next applied.
A - Delay off
The supply voltage U must be constantly applied to the
device (green LED U/t illuminated). When the control contact
S is closed, the output relay R switches into on-position
(yellow LED illuminated). If the control contact S is opened,
the set interval t begins (green LED U/t flashes). After the
interval t has expired (green LED U/t illuminated) the output
relay switches into off-position (yellow LED not illuminated). If
the control contact is closed again before the interval t (green
LED U/t illuminated) has expired, the interval already expired
is erased and is restarted with the next cycle.
I2 - Pulse extension with control contact
The supply voltage U must be constantly applied to the
device (green LED U/t illuminated). When the control contact
S is closed, the output relay R switches into on-position
(yellow LED illuminated) and the set interval t begins (green
LED U/t flashes). After the interval t has expired (green LED
U/t illuminated) the output relay switches into off-position
(yellow LED not illuminated). During the interval, the control
con-tact can be operated any number of times. A further cycle
can only be started when the cycle run has been completed.
W2 - Wiping on trailing edge
The supply voltage U must be constantly applied to the
device (green LED U/t illuminated). Closing the control
U
LED U/t
R
<t
<t
U
LED U/t
S
R
<t
t
t
U
LED U/t
R
t <t
t
U
LED U/t
S
R
t
t
U
LED U/t
S
R
t
<t
U
LED U/t
S
R
t
U
LED U/t
R
t
tt t
contact S has no influence on the condition of the output relay
R. When the control contact is opened, the output relay
switches into on-position (yellow LED illuminated) and the set
interval t begins (green LED U/t flashes). After the interval t
has expired (green LED U/t illuminated), the output relay
swit-ches into off-position (yellow LED not illuminated).
During the interval, the control contact can be operated any
number of times. A further cycle can only be started when a
cycle run has been completed.
E1 - Delay on with control contact
The supply voltage U must be constantly applied to the
device (green LED U/t illuminated).When the control contact
S is closed, the set interval t begins (green U/tLED flashes).
After the interval t has expired (green LED U/t illuminated)
the output relay R switches into on-position (yellow LED
illuminated). This status remains until the control contact is
opened. If the control contact is opened before the interval t
has expired, the interval already expired is erased and is
restarted with the next cycle.
I1 - Pulse limitation timer voltage control
When supply voltage U is applied, the output relay R switches
into on-position (yellow LED illuminated) and the set interval t
begins (green LED U/t flashes). After the interval t has
expired (green LED U/t illuminated) the output relay switches
into off-position (yellow LED not illuminated). This status
remains until the supply voltage is interrupted. If the supply
voltage is interrupted before the interval t has expired, the
output relay switches into off-position. The interval t already
expired is erased and is restarted when the supply voltage is
next applied.
B2 - Cycling timer starting on a pause
When the supply voltage U is applied, the set interval t begins
(green LED U/t flashes). After the interval t has expired, the
output relay R switches into on-position (yellow LED illumina-
ted) and the set interval t begins again. After the interval t has
expired, the output relay switches into off-position (yellow
LED not illuminated). The output relay is triggered in the ratio
1:1 until the supply voltage is interrupted.