Datasheet

ESG 3.4
Multifunctional time delay relay
MFT IQ13S
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.
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 already
expired is erased and is restarted when the supply voltage is
next applied.
<t
U
LED U/t
S
R
<t
t
t
U
LED U/t
R
t
tt t
U
LED U/t
R
t <t
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.
U
LED U/t
R
<t