Product Programme - OJ Electronics RHX2M Bedienungsanleitung

English
LIST OF FIGURES
The following figures are located at the back of the instructions:
Fig. 1: Mechanical dimensions of step motor controller
Fig. 2: Electrical connections
Fig. 3: Rotation guard installation
Fig. 4: Mechanical dimensions of step motor
Fig. 5: Example of mounting plate
Fig. 6: Motor pulleys for max. torque
Fig. 7: Motor pulleys for fewer variants
Fig. 8: 0-10 V control
Fig. 9: Compensation for non-linear heat transfer
Fig. 10: Modbus connections
Fig. 11: Electrical connections Rotorguard
INTRODUCTION
RHX2M is a step motor control system for accurate and quiet control of rotary heat
exchangers in ventilation systems.
The system consists of a step motor controller, a step motor and a rotation guard.
The rotation guard monitors whether the rotor turns as required.
RHX2M is designed to provide accurate control of rotor speed, thus allowing energy
efficient heat recovery.

PRODUCT PROGRAMME

Type Product
VVX controller and motor 2 Nm
RHX2M-1212
Modbus 0-10 V DC IP54
VVX controller and motor 4 Nm
RHX2M-1412
Modbus 0-10 V DC IP54
VVX controller and motor 6 Nm
RHX2M-1612
Modbus 0-10 V DC IP54
FUNCTION
RHX2M-1x12 is an advantageous replacement for traditional geared motor solu-
tions. In contrast to geared motors, which lose torque at low and high speeds, the
step motor provides an even torque throughout the entire speed range. Thanks to
the linearity of the step motor torque curve, there is a much larger range in which
rotor speed can be accurately controlled. This enables heat recovery to be energy-
efficiently controlled and provides more precise temperature control.
RHX2M can be controlled by either a 0-10 V signal or Modbus. It is therefore suit-
able for connection to traditional ventilation system controls or for more advanced
systems like OJ-Air2 from OJ-Electronics.
The step motor is controlled in micro steps via constant sine-wave current to ensure
motor shaft rotation with steady torque all the way round. Torque pulses are thus
avoided, ensuring quiet operation.
PROHIBITION ON USE
It is hereby declared in accordance with executive order 561/94 issued by the
Danish Working Environment Authority that the product must not be taken into use
until the machine/system in which it is to be incorporated has in its entirety been
declared to be in conformity with all relevant requirements of the Machinery Direc-
tive 98/37 EEC and any applicable national regulations.
The product must not be energised until the entire installation complies with ALL
relevant EU directives.
The product carries a manufacturer's warranty if installed in accordance with these
installation instructions and current installation requirements.
If the product has been damaged in any way, e.g. during transport, it must be in-
spected and repaired by authorised personnel before being connected to the power
supply.
INSTALLATION
RHX2M is designed to be installed inside the heat exchanger housing.
© 2016 OJ Electronics A/S 21