Johnson Controls FRICK QUANTUM HD - Current Transformer (Motor Amps)

QUANTUM™ HD COMPRESSOR CONTROL PANEL
MAINTENANCE
090.040-M (MAR 12)
Page 38
P4A (Inputs)
P4B (Inputs)
CH. 16CH. 16
Current Transformer (CT) connection
- Standard direct connection, 0 - 5
amp input (Install LK2)
LK 2LK 2
Install this jumper when using the
on board Current Transformer and
connector P8 to use CH. 16 (P8) to
read Motor Amps
Remove for CH. 16 external Motor
Amps signal and connect to P7B
directly
CH. 16
CH. 16
Motor Amps - Alternate external
signal connection, 0 - 20mA input
(Remove LK2)
D1
C25
U2
5VDC
P5A (Inputs)
U4
P5B (Inputs)
C4
LK1
U15
U3
U10
D9 Act
D3
CRx
D2
CTx
D7
Rx
D8
Tx
P12
P6A (Inputs) P7A (Inputs)
LK2
P7B (Inputs)
CURRENT TRANSFORMER (MOTOR AMPS)
Channel 16 of Analog Board 1 is dedicated to reading mo-
tor amps, either through the use of the on board current
transformer when using a 0-5 amp CT, or from an exter-
nal source. When reading motor amps directly at the P8
terminal strip from a CT, the input signal cannot exceed 5
amps. If you are using an external DC Ma or voltage de-
vice, remove the jumper at Link 2, and connect the wiring
to connector P7B. If you intend on utilizing the on-board
current transformer, then install Link 2, and connect the
wiring to Channel 16, as shown in the diagram below:
LK2
Install this jumper when using the on
board Current Transformer with a 0-5
amp CT connected to P8 to use Ch. 16
(P8) to read Motor Amps.
Remove this jumper for Ch. 16 exter-
nal Motor Amps signal and connect to
P7B directly.
CH.16
Current Transformer (CT) connection
- Standard direct connection, 0 - 5
amp input (Install LK2)
CH.16
Motor Amps - Alternate external
signal connection, 0 - 20mA or
4-20mA input (Remove LK2)