20
| EN
EIOM v2018.04
NO.
DESCRIPTION
NO.
DESCRIPTION
1
Stepper motor connections (U, V, W, PE)
5
RJ12 Modbus connector
2
Connection terminals for future use
6
3-point strain relief for Modbus cable (ribbon cable)
3
Connector for optional module
7
Supply terminals (L, N, PE)
4
Terminal strip for Modbus and A/D control signals
8
Earth connection (PE)
Figure 5.2.3.4 – stepmotor controller OJ-DRHX-14Nm electrical connection scheme:
NOTE: The extension stepper motor cable should be connected to the terminals marked: “U” – Brown; ”V” – Black; ”W” – Blue; “PE” - Yellow/
Green
ITEM TO BE CHECKED
DESCRIPTION OF CHECK
Completion
Check that the entire installation is ready to be commissioned, both
electrically and mechanically, before energizing the installation.
Check that no people or animals are present in the vicinity of moving
parts.
Check that the selected stepper motor size meets the required torque
in order to be able to run the specific rotor.
Check that the OJ-DRHX cover has been correctly fitted and that both
snap locks have engaged correctly before energizing the product.
Check that all unused cable glands and other unused openings are
appropriately blanked off in accordance with the applicable enclosure
rating.
Check that the drive belt is tensioned correctly and that the rotor can
rotate easily and unhindered, with a torque that is less than the rated
torque for the stepper motor.
Make sure that the belt is not tensioned beyond the maximum permis-
sible vertical tension on the stepper motor shaft.
Cabling
Check that all cabling has been fitted correctly and that stepper motor
and control cables are kept apart in separate cable conduits. The mo-
tor cable must be fixed to the chassis of the rotor for its entire length
Check that all cables are securely attached and relieved of tension
and torsion.
Check that all cables are free of visible damage throughout their length.
Electrical installation
Check that cables have been correctly inserted into OJ-DRHX and that
the cable glands have been correctly tightened.
Check whether there are any bad electrical connections, as they may
cause overheating and serious damage to the product and to property.
Mains voltage
Check that the mains voltage wires have been correctly fitted to the
supply terminals: one-phase on terminals ”L”, ”N” and ”PE” and three-
phase on terminals ”L1”, ”L2”, ”L3” and ”PE”.
Check by means of voltage measurement that there is the correct volt-
age on the terminals.
Stepper motor connection
Check that the extension cable is properly connected to the OJ-DRHX
terminals: ”U”, ”V”, ”W” and ”PE”
