Page 10
Technical Manual MSR Universal Stage Controller
Real time clock
The MSR Controller contains a real time clock (without a date
function) which can be used for changing the control setpoint.
The timer has a data backup for about 10 days in case of power
failure.
The time of the day and the date can be set with parameters P45 thru
P47.
The time switch is de-activated if ON and OFF-time are identical.
Operation Time Counter
Each relay output owns an individual operation time counter. This
counter measures and totalizes the time this output was activated.
The values can be read at "r01" thru "r04".
Because the display has 3 digits only, the stored value is "
displayed
value x 10".
After 9999 hours the counter will be reset to "0". A reset by the user
is not possible.
Networking of MSR controllers
All MSR-controllers can be networked via their
built-in RS-485-interface. This network can be
controlled by a host unit.
Normally this host is a PC with a qualified software
which allows remote control of units and recording
of all parameters.
2 4 V A C
Inportant
with one
transformer
only :
Switch off
by double
pole switch !
P E
N PE
D O N D O
T
N PE
D O N D O
shielding
T
T
N PE
D O N D O
T
N PE
D O N D O
Because all units are connected parallel at the data
cable (party-line), every unit has its own network
address (P40) to ensure a specific communication.
The communication speed is fixed by P41 (Default
value 9600 Baud).
If multiple, networked controller units are supplied
from one transformer (MSR 1100 only), a double
pole switch must be used to switched off the single
positions.
If not, the unit will be supplied by a half-wave via the
shielding, and the unit continues working (depending
on the secondary voltage of the transformer).
INSTALLATION
•
Before applying voltage to the controller:
Make sure that all wiring has been made in
accordance with the wiring diagram in this manual.
Please check if the supply voltage corresponds to
the value printed on the unit's type label.
• Important for the installation of the MSR 1100:
Don't connect the secondary coil of the transformer to PE!
• Use 2-wire pressure transmitters only, 3-wire transmitters can
only be used with an external power supply.
• Important ! Please note the starting-currents and current
timing of your load to prevent damages of the relay
contacts.
• Sensor leads should be shielded cable with one end of the
shielding connected to ground. This avoids irregular
switching caused by electro-magnetic interference.
• The wire gauge of the sensor cables is not critical, if it
should be lenghtened, 0,5 sqmm are adequate.
• Mounting the controller close to power relays is
unfavourable in case of the electro-magnetic interference.
• Please note that TF-type temperature sensors are water-
proof but not pressure protected. To measure liquid media
please use dip-fittings.
• Important for the installation of the MSR 1100:
The external contacts for initiating the OK-input must be suitable
for 5VDC/1mA.
Attention !
Note polarity while
connecting cables !
= sensor
common
terminal
P E
T
N PE
DO NDO
N PE
T
DO NDO
shielding
N PE
T
T
DO NDO
N PE
T
Connections
as short as
possible !
5 cm max.
(2.0 inch)
DO NDO
