Rane VR 2 User Manual

DATA SHEET / MANUAL VR 2

Vc

GND

Vr

4

0

2

6

8

10

LEVEL

Description

e VR 2 mounts in a standard US electrical box and can be
covered with a Decora plate. It contains a linear taper potentiom­eter with a single Euroblock screw terminal for each of the pot’s
three conductors, the Vr terminal, the Vc wiper terminal, and the
ground terminal.

Connection

Turn the power to the unit off until all connections are made. Con­nect the VR 2's control voltage Vc (wiper) connection(s) first.
en connect the voltage reference - “Vr” on the VR 2 (“REF”
terminal on a RPM unit). Connect the GND (ground) terminal
last. Double and triple check your wiring before applying power
to the MA 4 or RPM since improper wiring can and will cause
permanent, irreparable damage to the VR 2, requiring replace­ment of the remote. Such damage is not covered by Rane's war-
ranty; checking the wiring is easier than a second trip to the job
site with another remote.

VOLUME REMOTE

Euroblocks

Be sure to note the wire color of each input in order to facilitate
correct wiring to the controlled unit. If the ground or shield wire
is left shorter, it acts as a strain relief for the other wires. Con­nect each wire to the 3-pin connector by fully inserting it in the
correct socket and tightening the screw. Make sure wires are free
of nicks and that the cable jacket is stripped back sufficiently
to allow it to lie in the electrical box with the remote assembly
inserted.

Voltages

Turn the power to the unit off until all connections are made. It
is important to ensure that the Remote Ports are not subjected
to sustained voltages outside the range of 0 to 5 volts DC or
high levels of static. Inputs are protected, however, caution is the
better part of... you know. It is a good idea to install the wiring,
connect it to the Remote and then make the final connections at
the Remote Port.

Do not short the Vref pin to ground. is pin is current

limited, however, excess heat is generated in the 5 volt supply if a
short occurs. Never subject the Vr pin to voltages above 5 volts.

Remote Mounting

e VR 2 remote assembly mounts in a standard U.S. electrical
box with a minimum depth of 2.25" (5.5 cm). Use the flat head
#6 screws supplied with the kit to mount the remote assembly
and silk-screened front panel to the electrical box.

Install the knob so that the line on the knob is properly
aligned with the silk-screening on the front panel of the remote.
Install any Decora plate of your choice. For a secured installa­tion, you may wish to leave the knobs off and use a blank Decora
plate to cover the remote after adjustment.

Decora plate cover, not supplied.

Vc

GND

Vr

100 mA

+5v /0-5V

REF

12345768

GND

REF

12345768

GND

VERSATILE INPUT PORT

Wire Types

20 kΩ,
linear taper

GND

Vc

CW

Vr

Variations in wire type do not greatly affect the performance of
the remote controls. However, a minimum gauge of 22 strand­ed wire with a flexible jacket is recommended. You may use
3-conductor unshielded remote control signal cable for shorter
runs (less than 200 ft.) or 2-conductor (1 pair) shielded remote
control signal cable (use the shield as the GND return) for longer
runs (200 to 1000 ft.). e type of wire required is influenced by
your installation and local electrical codes.

Rane Corporation does not provide or source cable. Please
contact your local retail or wholesale outlet, not the factory. e
following is a short list of suitable cable types:

CONSOLIDATED ELECTRONIC WIRE AND CABLE
Plenum cable:
Unshielded remote control signal cable CAT. # 9896
Shielded remote control signal cable CAT. #9877, CAT. #9852

WEICO WIRE & CABLE INC.
Communication and control cable:
Multiconductor, unshielded CAT. #7606

ALPHA
Communication and control cable:
Multiconductor, unshielded CAT. #1175C

VR 2 All-in-One Block Diagram and Schematic

BELDEN
Unshielded remote control signal cable CAT. # 88741
Shielded remote control signal cable CAT. # 88723

Wiring shown for VR 2 to control VIP pin 1

on RPM series units.

Versatile Input Port Silkscreen text on VR 2

REF Vr
GND GND

VIP pin 1....8 Vc

©Rane Corporation 10802 47th Ave. W., Mukilteo WA 98275-5098 TEL [phone] FAX [phone] WEB www.rane.com

All features & specifications subject to change without notice. PN 12907