Cutler-Hammer - Eaton Canada

Terminal Block
The AF93/IS903 terminal block description is summarized in table 2-2 below:
Terminal Name Terminal Description
Specifications
INSTALLATION
1 LOOP Analog input speed reference from a 4-20mA current loop. Zin²250½. If SPEED FOLLOWER, PI REGULATOR, or ANALOG
LOAD LIM (parameter 21) is enabled: Then if Iloop1 mA, terminal 3 is ignored and speed reference is taken from this input. Active in REMOTE mode only.
2 AGND Analog signal common and shield tie point.
3 POT WPR 0-10V Analog input speed command. May be attached to the wiper of a potentiometer or the output of a remote control circuit.
Zin > 100 k½. Active if SPEED FOLLOWER, PI REGULATOR, or ANALOG LOAD LIM (parameter 23) is enabled.
4 POT HI Analog input reference for external potentiometer. Requires a remote potentiometer of 1 k½ or greater.
5 AOUT1 Programmable analog output 1. 0-10V signal represents 0 to full scale of the selected parameter.
6 AOUT2 Programmable analog output 2. 0-10V signal represents 0 to full scale of the selected parameter.
7 DIGCOM Digital Input Common. This is local digital ground.
8 STOP Digital Input Stop/Run Enable Command. Must be LO (or connected to terminal 7) for drive to start or run; acts as a Run
Enable. Momentary HI (or opening) stops the drive. Active in both KEYPAD and REMOTE modes. To run the drive in KEYPAD
mode, a customer supplied jumper must be placed between terminals 7 and 8, and terminals 7 and 15. Attempting to start
in KEYPAD mode without the jumper installation will yield a RUN DISABLED message. If drive is in AUTO RESTART mode, LO-
HI (closed-open) transition exits the auto restart sequence and enters STOP mode without asserting a fault. If drive is in FAULT
mode, LO- HI (closed-open) transition resets the fault and stops the drive.
9 START Digital Start Input. In 3-wire control, a momentary contact between terminals 9 and 7 sends a RUN command to the drive. In
2-wire control, a jumper is installed between terminals 9 and 7. Active when REMOTE mode is enabled. If drive is in AUTO
RESTART mode, START is ignored. If drive is in FAULT mode, HI-LO (open-closed) transition while Run Enable is true resets
the fault and starts the drive.
10 FWD/REV Digital Fwd/Rev Input. HI (open) = Forward (clockwise rotation viewed from the motor shaft end); LO (closed to terminal 7)
= Reverse (counter-clockwise rotation viewed from the motor shaft end). Active when REMOTE mode is enabled.
11 ACC2/JOG Digital Accel/Decel2 Input / Jog Input. LO (closed to terminal 7) and RUN enable present (terminal 7 closed to terminal 8) selects
second set of Accel/Decel presets in ACCEL2 mode; LO (closed to terminal 7) and RUN enable is present causes a jog motion in
JOG mode. Active when REMOTE mode is selected.
12 PRST1 Digital Preset Speed Input 1. Least Significant Bit (LSB) of a 3-bit binary coded speed preset select. HI (open) = 0 (OFF),
LO (closed to terminal 7) =1 (ON). Active when REMOTE mode is selected.
13 PRST2 Digital Preset Speed Input 2. Binary number selects one of seven internal presets entered from the setup menu. Code 0 (all
inputs HI (open), OFF)) directs speed pot. or 4-20 mA current loop speed setting as command input. Active when REMOTE
mode is selected.
14 PRST3 Digital Preset Speed Input 3. MSB of a 3-bit binary coded speed preset select. Active when REMOTE mode is selected.
15 EXTFLT Digital External Fault Trip Input. HI (opened to terminal 7) triggers an External Fault event and places the drive in FAULT mode,
shutting it down. To run the drive in KEYPAD mode, customer supplied jumpers must be placed between terminals 7 and
8 and terminals 7 and 15. Always active in both KEYPAD and REMOTE modes. Drive will coast to a stop.
16 RLY1A Programmable Relay 1 NO contact
17 RLY1B Programmable Relay 1 NO contact
18 RLY2A Programmable Relay 2 NO contact
19 RLY2B Programmable Relay 2 NO contact
20 FLTNC Fault Relay NC contact
21 FLTCOM Fault Relay Common
22 FLTNO Fault Relay NO contact
AF93/IS903 Terminal Block Descriptions
Table 2-2
AF93/IS903 Instruction Manual
2-37