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5
U
aux
Auxiliary voltage
A, B, C, D, E, F
Output relays
IRF
Self-supervision
SGB
Switchgroup for the configuration of the blocking or control signal
TRIP
Trip output relay, output 65-66
SIGNAL
Signal on tripping
PRIOR ALARM
Prewarning for a beginning overload condition
START
Start information from the motor
RESTART ENABLE
Starting of motor inhibited in fault conditions
U1
Motor protection module SPCJ 4D34
U2
Power supply and output relay module SPTU 240 R2 or SPTU 48 R2
with a normally open trip contact, SPTU 240 R3 or SPTU 48 R3 with
a normally closed trip contact
U3
Input module SPTE 4E3
SPA-ZC—
Bus connection module
SERIAL PORT
Serial communication port
Rx, Tx
Receiver bus terminal (Rx) and the transmitter bus terminal (Tx) of
the bus connection module
STALL
External stall control input
RESTART INHIBIT
External restart inhibit control signal
LATCHING
Latching function of the trip relay
68
69
77
78
80
81
Made in Finland
1
2
3
4
5
6
7
8
9
25
26
27
61
62
63
65
66
74
75
70
71
72
10
11
Serial Port
SPA
Fig. 3. Rear view of relay SPAM 150 C.