Electro Cam PL-1746 Series - Manual (Page 11)

2-1 Installation
General Installation
If the equipment is used in a manner not specified by the manufacturer,
the protection provided by the equipment may be impaired.
Keypad/Display Mount the keypad/display to a panel using the four studs on the back of the keyboard.
Enclosures are available from Electro Cam if an appropriate mounting location does
not exist.
DIP Switches For convenience, set the DIP switches to their proper positions before mounting
the keypads and the module.
Environment 1. Ambient temperature range is 0
°
to 55
°
C (32
°
to 130
°
F).
2. Locate the chassis and keypad away from devices that generate electrical noise,
such as contactors and drives.
3. Use the keypad/display gasket provided to prevent contaminants from getting into
the cabinet.
Terminal Blocks All terminal blocks can be unplugged from the PLS module and rack (PL-1746-C01).
Each block is keyed so it cannot be plugged into the wrong socket. All terminals are
labeled on each block.
Wiring Guidelines Follow normal wiring practices associated with the installation of electronic controls.
Some guidelines are:
1. Route input and output wiring away from high voltage, motor drive, and other high
level control signals.
2. Use shielded cables for resolver and input circuits. Also shield module output cir-
cuits that are driving low current electronic input circuits.
3. Ground shielded cables at the PL-1746 end only (except for resolver cable).
4. Use appropriate suppression devices where module outputs are directly driving in-
ductive loads.
CE Installations For installations that must comply with CE requirements the PL-1746 module and PS-
4108 rack must be mounted inside a metal enclosure. In addition, a CoreCom 20VK6
or equivalent single stage PI filter must be connected across the AC input to the SLC
power supply. A Steward 28A2025-0A0 or equivalent ferrite bead must be snapped
onto the resolver cable as close to the enclosure wall (inside) as possible.
CE Installations must comply with all other manufacturer's requirements.
Power Supply Wiring Connect a 20 to 30 VDC power supply to the PLS module's power supply terminal
block. Reversing the polarity will cause the power supply circuit to shut down. The PLS
module will not be damaged, but you must correct the polarity for correct operation to
resume.
To insure electrical noise immunity, connect a good electrical ground to the ground
terminal on the power supply terminal block.
(PL-1746-C01 only) A phillips head screw holds each SSR in place. Individual SSR's
can be removed and installed without affecting other modules. Be sure to disconnect
power to the rack before changing SSR's. Solid State
Relay Mounting