Product Description
2
0
1
8
-0
6
9
Figure 2.2
Function of the ZPA Motor Control Module
The ZPA motor control module is an intelligent field module that already contains the logic for
zero pressure accumulation. It assumes the control of one or two consecutive zones powered
by DC roller motors. The motors (MOT1, MOT2) and zone sensors (IN1, IN2) are connected
directly with the ZPA motor control module for this purpose.
The ZPA motor control module has two separate zone controls. Both zone controls are logically
coupled within the module. The access-side zone control can be deactivated within the
module, so that the outgoing-side zone control controls both DC roller motors as the master.
Only the sensor input (IN1 and IN2) of the master is evaluated in this case.
A coupling with the neighboring zones is created via two interfaces for the zone coupling (X1,
X2). This makes it possible to connect several ZPA motor control modules in series to create an
accumulation conveyor line of any length.
The ZPA motor control module is powered via the black AS-Interface flat cable, which is
connected using piercing technology without the need for tools. The ZPA motor control module
is configured directly on the device using the three rotary switches (S1, S2, S3). In addition to
various operating modes, the motor speed, the conveyor direction, and start and stop ramps
can be configured.
Figure 2.3
1-zone Operation/2-zone Operation
If the ZPA motor control module is to only control a single zone, the second zone logic must be
manually deactivated in some operating modes. For this purpose, the rear zone in the conveyor
direction is bypassed internally. The DC roller motor of this zone then runs synchronous to that
of the zone in front (see previous figure). It can therefore support the other DC roller motor by
driving the same zone and thereby doubling the drive power of that zone.
X1
X2
IN1
MOT1
IN2
MOT2
P
W
R
X
1
IN
X
1
O
U
T
X
2
IN
X
2
O
U
T
M
O
T
1
M
O
T
2
E
R
R
1
E
R
R
2
IN
1
IN
2
IN
OUT
OUT
X2
X2
X1
X1
IN
OUT
IN
OUT
OUT
IN
OUT
IN
IN
OUT
IN
OUT
MOT1
MOT2
IN2
MOT2
IN2
MOT1
IN1
IN
Zone
Upstream
zone
Downstream
zone
Roller motor
Roller motor
Zone sensor
Roller motor
Zone sensor
Conveying direction
Roller motor
Zone sensor
Release
Sensor
Zone coupling
Sensor
Sensor
Release
Release
ZPA motor control module
Zone coupling
Zone coupling
2 zones
ZPA motor control module
1 zone
Release
Sensor
Zone
Zone
Zone
Zone
