Motor control unit DCM31
25 / 35
- If automatic closing is active, actuating the SE input causes the closing time to be
reset until the input is re-released.
- The SE input is self-monitoring. The input is tested during each self-test. If an error
is detected, it is not possible to start {Er.12}.
- As the OSE self-test lasts approx 2 s, the control unit is blocked for this time after
each motor run for the direction of travel selected in [M.b6].
- If the SE input is not used the [J1] must be connected to NC (8k2 resistor is
switched on internally) and [M.B6] set to 8k2 (= 10)[X4].
- External safety devices must be approved for protection of people and are not
tested by the control unit!
q) Photoelectric barrier input (LS)
- A photoelectric barrier or an electrical safety contact strip with a floating break-
contact element can be connected to the LS input.
- If the input is not used, it must be jumpered with a wire jumper (delivered
condition).
- The switched status is displayed via the yellow LED behind the terminal
[Kl.22]+[Kl.23].
- A motor start while LS input is activated is only possible if the input has no effect in
the relevant direction of travel [M.b4].
- While a motor is running a command at the LS input causes stop, release or
reversing, depending on the direction of travel and setting [M.b4].
- If automatic closing is active, actuation of LS input resets the closing time until the
input is re-released.
- The LS input is self-monitoring and is tested during each self-test. At the same time
the LED behind terminal [Kl.22]+[Kl.23] briefly flashes.
- If an error is detected in LS input {Er.13}, it is not possible to start.
- External safety equipment must be approved for the protection of people and is not
tested by the control unit!
- External testing of photoelectric barrier: see relay output OUT
r) Release
- After LS or SE input is actuated or via electricity stop, depending on the set
function, the obstruction can be released (short travel away from the obstruction).
- During this, the gate is moved for the time set via [M.b7] in the opposite direction.
s) Close after leaving the photoelectric barrier
- The "close after leaving the photoelectric barrier” function can be activated via
[M.b5].
- If [M.b5] = 00, the function is inactive.
- If the photoelectric barrier is left while the gate is open, closing is started after the
time set via [M.b5] has expired.
- Actuation of photoelectric barriers while the gate is moving is temporarily saved. As
soon as the gate has stopped, it starts to close after the time set via [M.b5] has
expired.
t) 1 /2 leaf mode
- [M.C1] can be used to set the control unit for 1 and 2-leaf mode.
- Particularities of 1-leaf mode:
• Motor 2 is inactive. The limit switch ES2 open and close does not have any
function and the corresponding LEDs are always off.