IMD Drive installation guide
R1724
- 7 -
SERAD S.A
2-
Installation
2-1-
General
It is very important to adhere to the following:
A badly earthed connection can damage electronic drive components.
The drive must be installed vertically in free air to ensure cooling by natural
convection.
It must be protected from excess humidity, liquids, and dirt.
The motor, resolver and encoder cables must be screened, the screen being earthed
at both ends of the cable.
The analogue I/O must use screened cable, the screen being earthed at one end
only.
The cable for the RS 232 serial link between the drive and the PC must be screened,
the screen being earthed at both ends of the cable. It should be disconnected from the
drive when no longer in use. All of these cables, as well as the I/O cables, should be
run separately from the power cables.
Diodes must be fitted across the loads on all static digital outputs (Q2 to Q10).
These diodes must be positioned as close to the load as possible. The supply and
signal cables must be free from over-voltage transients.
Safety standards specify a manual reset after a stop caused either by a supply
interruption, or by an emergency stop or by a drive fault.
For all serious faults, it is obligatory to remove the high voltage supply to the drive.
The Drive Ready output should be connected in series in the emergency stop loop.
In the case of axis over-travel, the over-travel limit switches must be connected to
the limit inputs or in series with the emergency stop loop. It is also recommended to
use the software limits.
If the drive is configured in speed loop, the drive enable input should be controlled
by the supervisory controller (CNC, PLC etc).
If the drive is configured in position loop, the parameter "Maximum following
error" should be set appropriately.
If the drive contains an application program developed using iDPL, connect a
signal ‘Cabinet supplies OK’ to one of the digital inputs and monitor it in a non-
blocking safety task. On detection of an excess following error the drive will be put in
open loop mode and the drive ready relay will be opened. If another action is required
you should use the SECURITY instruction.
