ZPA Pecky, a.s. MODACT MOK 1000, Инструкция по установке и эксплуатации

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Technical parameters of DCPT:
Scanning of position contact-less magneto-resistant
Working stroke adjustable 60° – 340°
Non-linearity max. ±1 %
Loading resistance 0 – 500
Ω
Output signal 4 – 20 mA or 20 – 4 mA
Power supply 15 – 28 V DC, < 42 mA
Working temperature -25 °C to +70 °C
Dimensions ø 40 x 25 mm
For the transmitters CPT 1Az as well as DCPT, a two-wire connection is used, i.e., the transmitter, the power supply and
the load are connected in series. The user should secure that the two-wire circuit of the current transmitter is connected to
the electric earth of the associated regulator, computer, etc. This connection should only be made at a single point in any
section of the circuit, outside the actuator.
Position indicator
The actuator is fitted with a local position indicator.
Anti-condensation heater
The actuators are fitted with an anti-condensation heater preventing condensation of water vapour. It is connected
to the AC mains of voltage 230 V.
Local control
Local control serves for controlling the actuator from the site of its installation. It includes two change-over switches:
one with positions “Remote control - Off - Local control”, the other “Open - Stop - Close”. Switch 1 can be integrated as
2-pole or 4-pole switch.
6. ELECTRIC PARAMETERS
External electric connection
The terminal board of the actuator is fitted with terminals allowing one conductor with a maximum cross-section of
2.5 mm
2
or two conductors with the same cross-sectional area up to 1 mm
2
to be connected.
Connecting of actuators with connector – on special request.
Actuator internal wiring
The internal wiring diagrams of the MODACT MOK actuators with terminal designation are shown in this Mounting
and operating instructions.
Each actuator is provided with its internal wiring diagram on the inner side of the actuator cover. The terminals are
marked on a self-adhesive label attached to a carrying strip under the terminal block.
Overheating protection of electric motor
All electric motors have thermal fuses in their winding. They serve as an additional protection; they do not substitute
the overcurrent protection or circuit breaking.
The fuses of single-phase electric motors are internally interconnected with the winding and, in case of overheating,
they cut out the electric motor; after cooling down, they cut it in automatically.
The fuses of three-phase electric motors are separately led out and they can be connected into control or signalling
circuits. They are connected to the actuator terminal board as a standard for MOK 63 (type no. 52 325) only.
Load-bearing capacity is 250 V AC / 2.5 A.
Current rating and maximum voltage of microswitches
Maximum voltage of mikroswitches is 250 V AC as well as DC, at these maximum levels of currents.
MO, MZ
250 V AC / 2 A; 250 V DC / 0,2 A
SO, SZ 250 V AC / 2 A; 250 V DC / 0,2 A
PO, PZ 250 V AC / 2 A; 250 V DC / 0,2 A
The microswitches can only be used as single-circuit devices. Two voltages of different values and phases cannot
be connected to the terminals of the same microswitch.
Isolation resistance
Isolation resistance of electric control circuits against the frame and against each other is min. 20 M
Ω
.
After a dump test, isolation resistance of control circuits is min. 2 M
Ω
. Isolation resistance should be at least
1,9 M
Ω
. See Technical specifications for more details.