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© 2014 Chromalox
®
, Inc.
1-888-996-9258
MaxPac IP
The Chromalox MaxPac IP is a solid-state proportional power controller that utilizes a Phase Angle firing
technique to modulate power to an inductive or resistive load. Separate adjustable Zero, Gain, Manual Bias,
and Current Limit potentiometers are provided along with screw type plug-in connectors for input signals,
Emergency Shutdown, and optional Remote Manual Bias with 0
-
100% dial. All units have thermostat pro
-
tection with N.C. contacts.
Start-up
The MaxPac IP has been factory calibrated for 4 - 20mA input. Be sure the operating voltage and
signal input are correctly applied. Also, make sure the Emergency Shutdown, if used, has N.O.
contacts and jumper pins 4 & 5 on the 10-pin connector if remote manual bias are not used. Please
read the information on calibration at the end of this section for current limit settings for loads with
extreme hot to cold ratios or those that are overrated. Other ranges may be field calibrated by use
of zero and gain potentiometers.
IMPORTANT: With the Current Limit option, the current transformer must be ter
-
minated properly to prevent it from being damaged.
CAUTION
0-5MA
(0-10V)
4-20mA
10-50mA
COM
CLOSE FOR
REMOTE
SHUTDOWN
N/C
N/C
JUMPER 4 TO 5
WHEN NOT USING
REMOTE POT
UNIT SHIPPED WITH JUMPER INSTALLED
INSTRUMENT
WIRE
L
O
A
D
SCR
FUSE
X1
L2
L1
CT
TB1
CON1P
JB1
JUMPER JB1 FOR 0-5mA
OPEN JB1 FOR 0-10V
Customer Connection