KEPCO BOP-ME 1KW, Operator'S Manual

Page: 48 / 234

2-6
BOP HIPWR 091719
TABLE 2-10. ANALOG I/O PORT INPUT/OUTPUT PIN ASSIGNMENTS
CONNECTOR PIN SIGNAL NAME FUNCTION
ANALOG I/O
PORT
A2A5J6
CAUTION: it is recommended that source power of external equipment connected to the Analog
Port be applied through an isolating transformer To avoid ground loops or possible
damage to the BOP due to incorrect equipment a-c wiring (e.g., defeating of ground
connection).
1 NC
2 VM-/CM
External input signal, TTL logic referenced to pin 9, controls the mode
of operation when using external reference (goes to the digital board
that changes VM-/CM signal). Logic 0 (or pin grounded) = current
mode, logic 1 (or pin not connected, the default) = voltage mode (see
PAR. 3.4.3).
3 IOUT_DMM
Output analog signal through 2K ohm resistor referenced to pin 4 for
monitoring overall output current, 0V to ± 10V corresponds to zero to ±
full scale current.
4 SGND Signal Ground used for IOUT_DMM (pin 3) return.
5 – I_LIM_EXT
Analog input signal referenced to pin 12, 0V to +10V sets the negative
current limit between zero and –I
Omax
, +10V corresponds to rated
maximum current (e.g., for BOP 36-28MG +10V sets negative current
limit to –28A) (see PAR. 3.4.5). Open = disabled (see NOTE 1).
6 – V_LIM_EXT
Analog input signal, 0V to +10V, sets the negative voltage limit
between zero and –E
Omax
, +10V corresponds to rated maximum volt-
age (e.g., for BOP 36-28MG +10V sets negative voltage limit to –36V).
Open = disabled. (See PAR. 3.4.5.) Open = disabled (see NOTE 1).
7 NC
8 NC
9 GND Ground - Used for VM-/CM (pin 2) return
10 SGND Signal Ground (used for EXT_REF (pin 11) return
11 EXT_REF
External analog reference signal referenced to pin 10, used for both
voltage mode and current mode, 0V to ±10V corresponds to zero to ±
rated nominal (full scale), voltage or current (see PAR. 3.4.4.1).
12 GND1 Ground (Used for pin 5, 6, 13 and 14 return)
13 +I_LIM_EXT
Analog input signal referenced to pin 12, 0V to +10V sets the positive
current limit between zero and I
Omax
; +10V corresponds to rated maxi-
mum current (e.g., for BOP 36-28MG +10V sets positive current limit to
+28A) (see PAR. 3.4.5). Open = disabled (see NOTE 1).
14 +V_LIM_EXT
Analog input signal, 0V to +10V sets the positive voltage limit between
zero and E
Omax
, +10V corresponds to rated maximum voltage (e.g.,
for BOP 36-28MG +10V sets positive current limit to +36V. Open = dis-
abled. (See PAR. 3.4.5.) (see NOTE 1).
15 NC
NOTE 1. When disabled, the external limit channels are automatically set 20% higher than BOP nominal references.