Yaskawa DS387 - Manual (Page 12)

C5. Determine whether a voltage or current
signal will be inputted on each of the channels of
the AI–14B board, and set selection jumpers
accordingly (see Figure C2).
6. Wiring. See Figure C3 for Analog Speed
Reference connections. See Table C2 for
terminal functions.
Figure C2. Voltage/Current Selection on AI-14B
• • •
V C
• • •
V C
• • •
V C
PART OF
AI-14B
BOARD
ALL JUMPERS
(SHORTING
PLUGS) SHOWN
IN POSITION
FOR CURRENT
INPUT
Table C2. Terminal Functions of AI-14B
Terminal Function Signal Level Notes
TC1 Analog voltage/current Voltage Input: — Input Resolution:
input Input voltage: 0 to ±10V/0 to ±100% Voltage: 1/8192 (13 bits) plus
Input impedance: 20K
Ω
sign (polarity)
TC2 Analog voltage/current Current: 1/6554
input Current Input:
Input current: 4 to 20mA/0 to ±100% — Signal Linearity: ±0.1%
TC3 Analog voltage/current Input impedance: 500
Ω
input — Terminal screws are metric
size M3.
TC4 Signal common 0V
CAUTION
KEEP ANALOG SPEED REF. (I.E. CONTROL CIRCUIT) WIRING
SEPRATE FROM MAIN CIRCUIT INPUT/OUTPUT WIRING.
CAUTION
TO PREVENT ERRONEOUS OPERATION CAUSED BY NOISE
INTERFERENCE, USE SHIELDED CABLE FOR CONTROL WIRING,
AND LIMIT DISTANCE TO 10M (33 FEET) OR LESS.
CAUTION
IF ANY OF THE CONTROL SIGNAL INPUT TERMINALS (TC1 THRU
TC3) ARE NOT USED, JUMPER THEM TO 0V TERMINAL (TC4).
IMPORTANT
Because the analog speed reference is converted by 1/16384 resolution, the
voltage source accuracy of the analog speed reference source must be con-
sidered. To ensure speed control accuracy, use a high precision power supply for
the voltage source.
Route wires from the drive and connect to the peripheral device. Refer to "Electrical Installation" in the drive
technical manual for further information on use of shielded cable.
Yaskawa Electric America, Inc-www.drives.com
02Y00025-0296 Page 12 OF 14
REL. 08/23/91
ANALOG SPEED REFERENCE
(BIPOLAR) (AI-14B) MODEL DS387