1.
INTRODUCTION
The MAGPOWR
%
Model DIGITRAC
%
2 is a microprocessor based control, designed for precise closed loop
tension control of a moving web. All data entry and calibration is done through the touch pad keyboard. The
DIGITRAC 2 is capable of controlling web tension in unwind, rewind, or point-to-point applications. Throughout
this manual, bold words or symbols represent keystrokes.
2.
INSTALLATION
INSTALLATION
The DIGITRAC 2, Model D2E and its variants are intended for mounting on any flat vertical surface capable of
supporting it. See Figure 4 for dimensions. The D2E meets the environmental and mechanical requirements of
EN50178 with the exception that the degree of protection provided by the D2E enclosure is IP65 which is more
stringent than the standard. If the IP65 rating is required in the final installation, sealing type cable grips should
be used for cable entry. Four mounting holes are provided for attachment of the D2E to the mounting surface.
The means of attachment should comply with the essential requirements of the appropriate standard(s) and is
the responsibility of the installer.
The DIGITRAC 2, Model D2 and its variants are intended for installation through a DIN panel opening. The
panel itself should exhibit sufficient strength to support the weight of the D2 as well as insure the integrity of the
environmental seal. The D2 maintains a degree of protection of IP65 over its front panel. It also meets the
environmental and mechanical requirements of EN50178. The D2 mounting clips found on both sides of the
enclosure behind the front panel will accommodate panel thickness of 0.06 inches (1.5mm) to 0.5 inches
(12mm).
Wiring to and from the enclosure must be done with double or reinforced insulation or protective screening which
provides protective separation. All wiring outside either of the DIGITRAC 2 enclosures should comply with the
essential requirements of the appropriate standard(s) and is the responsibility of the installer.
If using a magnetic particle clutch or brake, see Section 5 to install the Model PA-2 or PA-90 Power Amplifier.
WARNING: DISCONNECT MAINS BEFORE OPENING ENCLOSURE
MAINTENANCE
The only maintenance that may be required on DIGITRAC 2 is fuse replacement. Replacement of any fuse
requires opening the enclosure, which circumvents the enclosure IP rating. To replace a fuse:
On Model D2 and its variants:
On Model D2E and its variants:
1. Disconnect the supply mains.
1. Disconnect the supply mains.
2. Remove the two screws on the rear of the D2
2. Open the door of the D2E by loosening the
which retain the top cover.
two retaining screws.
3. Remove the top cover.
3. Remove the PA-2 or PA-90 power amplifier
4. Remove the PA-2 or PA-90 power amplifier
if present.
if present
4. Remove and replace the blown fuse.
5. Remove and replace the blown fuse.
5. Re-install the PA-2 or PA-90.
6. Re-install the PA-2 or PA-90 and the top cover.
6. Close the door and re-tighten the retaining screws.
7. Reconnect supply mains.
7. Reconnect supply mains.
2
