PEL-3211(H) User Manual
36
A
PPENDIX
Frame Control Connector Contacts
J1 Connector Booster
Pin name
Pin number
Description
N.C.
1 Not connected.
N.C.
2 Not connected.
A COM
3 Connected to the negative load input terminal.
SUM I MON
4 Connected to SUM I MON of the J2 connector.
PRL IN+
5 Connected to PRL OUT+ of the J2 connector.
PRL IN-
6 Connected to PRL OUT- of the J2 connector.
LOAD ON/OFF
CONT
7 Turns on the load with low (or high) TTL level
signal.
N.C.
8 Pulled up by the internal circuit to 5 V using 10 k
Ω
.
RANGE CONT 0 9 External range switch input*1 *2
Pulled up the internal circuit to 5 V using 10 k
Ω
.
ALARM INPUT
10 Activates an alarm with high (or low) TTL level
signal input. Pulled up by the internal circuit to 5 V.
N.C.
11 Not connected.
A COM
12 Connected to the negative load input terminal on
the rear panel.
N.C.
13 Not connected.
N.C.
14 Not connected.
N.C.
15 Not connected.
ALARM STATUS 16 Turns on when an alarm (OVP, OCP, OPP, OHP,
REV, or UVP) is activated or when an external alarm
is applied. Open collector output by a
photocoupler.*3
STATUS COM
17 STATUS signal common for pins 16.
N.C.
18 Not connected.
